COMPS COM INC
8-K, 1999-09-13
COMPUTER PROCESSING & DATA PREPARATION
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================================================================================
                                 UNITED STATES
                      SECURITIES AND EXCHANGE COMMISSION

                            Washington, D. C. 20549

                                   Form 8-K

                                CURRENT REPORT
    Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

       Date of Report (Date of earliest event reported): August 27, 1999


                                COMPS.COM, Inc.
            (Exact name of registrant as specified in its charter)


<TABLE>
<S>                                 <C>                            <C>
Delaware                            000-25913                      33-0645337
- --------------------------------------------------------------------------------------------------
(State or other jurisdiction of     (Commission File Number)       (IRS Employer Identification
        incorporation)                                                          No.)
- --------------------------------------------------------------------------------------------------
</TABLE>
<TABLE>
<S>                                                               <C>
9888 Carroll Centre Road, Suite 100, San Diego,                   92126-4580
               California
- -------------------------------------------------------------------------------------------------
  (Address of principal executive offices)                        (Zip Code)
- -------------------------------------------------------------------------------------------------
</TABLE>

      Registrant's telephone number, including area code:  (858) 578-3000
<PAGE>

ITEM 2. ACQUISITION OR DISPOSITION OF ASSETS.

     On August 27, 1999, COMPS.COM, Inc., a Delaware corporation ("COMPS"),
acquired 1) all of the outstanding stock of Sendero Investments, Inc., a Texas
corporation ("Sendero"), 2) all of the outstanding stock of Parramore, Inc., a
Texas corporation ("Parramore"), and 3) substantially all of the assets
pertaining to the operations of the Commercial Brokers Network business of ARA-
D/FW, Inc., a Texas corporation ("ARA-D/FW"). The acquisitions were consummated
on the terms set forth in the respective Stock Purchase Agreements and Asset
Purchase Agreement dated August 27, 1999.  Sendero is a party to a joint venture
with ARA-D/FW operating the Commercial Brokers Network, a comprehensive,
internet-delivered, interactive, commercial real estate research and listings
service subscribed to by members involved in the commercial real estate business
in Central Texas. Parramore is in the business of publishing and selling the
Flick Report, a bi-monthly Central Texas commercial real estate trade journal.
As of July 31, 1999, these acquired businesses had approximately 4 full-time
equivalent employees.

     Under the terms of the Stock Purchase Agreement for Sendero, COMPS paid a
total of $629,748 at the closing, $223,058 of which was in cash then held by
COMPS and $406,690 of which was in the form of a subordinated convertible note
("Note").  The Note bears interest at 7% per annum payable monthly, matures in
August 2003, and can only be converted into common stock of COMPS if COMPS
defaults under the terms of the Note.  During the period in which a default
under the terms of the Note has not been cured, the number of shares of COMPS
common stock issuable upon such a conversion shall equal (i) the outstanding
balance of the principal and accrued interest of the Note at the time of
conversion, divided by (ii) the average of the closing prices of a share of
COMPS common stock on the Nasdaq National Market for thirty consecutive trading
days ending on the trading day immediately preceding the day of the default
event.

     Under the terms of the Stock Purchase Agreement for Parramore, COMPS paid a
total of $980,560 at the closing, $347,316 of which was in cash then held by
COMPS and $633,244 of which was in the form of a subordinated convertible note
("Note").  The Note bears interest at 7% per annum payable monthly, matures in
August 2003, and can only be converted into common stock of COMPS if COMPS
defaults under the terms of the Note.  During the period in which a default
under the terms of the Note has not been cured, the number of shares of COMPS
common stock issuable upon such a conversion shall equal (i) the outstanding
balance of the principal and accrued interest of the Note at the time of
conversion, divided by (ii) the average of the closing prices of a share of
COMPS common stock on the Nasdaq National Market for thirty consecutive trading
days ending on the trading day immediately preceding the day of the default
event.

     Under the terms of the Asset Purchase Agreement for ARA-D/FW, COMPS paid a
total of $889,692 (plus the assumption of certain liabilities not to exceed
$100,000) at the closing, $272,626 of which was in cash then held by COMPS and
$617,066 of which was in the form of two subordinated convertible notes
("Notes") in the amounts of $497,066 and $120,000.  The Note in the amount of
$497,066 bears interest at 8% per annum payable monthly, requires semi-annual
installments of principal of $62,133, and matures in August 2003. The Note in
the amount

                                       2
<PAGE>

of $120,000 bears interest at 8% per annum and is due in two equal payments of
principal plus accrued interest in February 2000 and August 2000. The Notes can
only be converted into common stock of COMPS if COMPS defaults under the terms
of the Notes. During the period in which a default under the terms of the Notes
has not been cured, the number of shares of COMPS common stock issuable upon
such a conversion shall equal (i) the outstanding balance of the principal and
accrued interest of the Notes at the time of conversion, divided by (ii) the
average of the closing prices of a share of COMPS common stock on the Nasdaq
National Market for thirty consecutive trading days ending on the trading day
immediately preceding the day of the default event.

     The description of the transactions contained herein is qualified in its
entirety by reference to the Stock Purchase Agreements and the Asset Purchase
Agreement, filed with this Current Report, and the Press Release issued by
COMPS, dated September 1, 1999, a copy of which is attached hereto as Exhibit
99.1.

ITEM 7. FINANCIAL STATEMENTS AND EXHIBITS.

     (a)  Financial Statements of Sendero, Parramore, and ARA-D/FW.

          The Financial Information of Sendero, Parramore, and ARA-D/FW required
     to be filed pursuant to Item 7(a) of Form 8-K was not available at the time
     of filing of this Current Report on Form 8-K and will be filed on a Form 8-
     K/A as soon as practicable, but in no event later than 60 days after the
     date this Form 8-K is required to be filed.

     (b)  Pro Forma Financial Statements.

          The Pro Forma Financial Information required to be filed pursuant to
     Item 7(b) of Form 8-K was not available at the time of filing of this
     Current Report on Form 8-K and will be filed on a Form 8-K/A as soon as
     practicable, but in no event later than 60 days after the date this Form 8-
     K is required to be filed.

     (c)  Exhibits.

<TABLE>
<C>            <S>
     2.1*      Stock Purchase Agreement by and among COMPS.COM, Inc., Sendero
               Investments, Inc. and Elliott P. Flick dated August 27, 1999
- -------------------------------------------------------------------------------
     2.2*      Stock Purchase Agreement by and among COMPS.COM, Inc., Parramore,
               Inc. and Elliott P. Flick dated August 27, 1999
- -------------------------------------------------------------------------------
     2.3*      Asset Purchase Agreement by and among COMPS.COM, Inc., ARA-D/FW,
               Inc. and American Realty, Inc. dated August 27, 1999
- -------------------------------------------------------------------------------
     99.1      Press Release dated September 1, 1999
- -------------------------------------------------------------------------------
</TABLE>

     *The schedules and exhibits referenced in the Stock Purchase Agreements
     and Asset Purchase Agreement have not been included because they contain
     information that is not material to an investment decision and is otherwise
     discussed in the agreement; they will be provided supplementally to the
     Commission upon request.

                                       3
<PAGE>

                                  SIGNATURES

     Pursuant to the requirements of the Securities Exchange Act of 1934, the
registrant has duly caused this report to be signed on its behalf by the
undersigned hereunto duly authorized.

                                  COMPS.COM, Inc.
                                   (Registrant)

     Date: September 13, 1999     /s/ Karen Goodrum
                                  -----------------
                                  (Karen Goodrum)
                                  Vice President, Chief Financial Officer
                                  (Principal Financial and Accounting Officer)

                                       4

<PAGE>

                                                                     EXHIBIT 2.1

- --------------------------------------------------------------------------------

                            STOCK PURCHASE AGREEMENT

                                  by and among

                                COMPS.COM, INC.,

                           SENDERO INVESTMENTS, INC.

                                      and

                                ELLIOTT P. FLICK

                             dated August 27, 1999

- --------------------------------------------------------------------------------
<PAGE>

                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                    Page
<S>                                                                 <C>
ARTICLE I DEFINITIONS..............................................   1

     1.1      Defined Terms........................................   1
     1.2      Construction of Certain Terms and Phrases............   6

ARTICLE II PURCHASE AND SALE OF STOCK..............................   6

     2.1      Sale of Company Stock by the Stockholder.............   6
     2.2      Purchase of Company Stock by COMPS...................   6
     2.3      Purchase Price Allocation............................   7
     2.4      Closing..............................................   7
     2.5      Private Placement....................................   9

ARTICLE III REPRESENTATIONS AND WARRANTIES OF STOCKHOLDER
AND THE COMPANY....................................................   9

     3.1      Organization of the Company..........................   9
     3.2      Capital Stock of the Company.........................  10
     3.3      Ownership of Shares..................................  10
     3.4      Authority of the Stockholder.........................  10
     3.5      Authority of the Company.............................  10
     3.6      No Affiliates........................................  10
     3.7      No Conflicts.........................................  11
     3.8      Consents and Governmental Approvals and Filings......  11
     3.9      Books and Records....................................  11
     3.10     Financial Statements.................................  11
     3.11     Absence of Changes...................................  12
     3.12     No Undisclosed Liabilities...........................  12
     3.13     Tangible Personal Property...........................  12
     3.14     Benefit Plans; ERISA.................................  13
     3.15     Real Property........................................  13
     3.16     Intellectual Property Rights.........................  14
     3.17     Proprietary Information of Third Parties.............  14
     3.18     Litigation...........................................  15
     3.19     Compliance with Law..................................  15
     3.20     Contracts............................................  15
     3.21     Environmental and Occupational Health Matters........  16
     3.22     Assignment of Company Revenue........................  17
     3.23     Accounts Receivable..................................  17
     3.24     Plants, Buildings, Structures, Facilities and
              Equipment............................................  17
     3.25     Insurance............................................  18
     3.26     Tax Matters..........................................  18
     3.27     Labor and Employment Relations.......................  19
     3.28     Certain Employees....................................  20
</TABLE>

                                      -i-
<PAGE>

<TABLE>
<S>                                                                  <C>
      3.29    Absence of Certain Developments......................  20
      3.30    Customers............................................  22
      3.31    Necessary Property...................................  22
      3.32    Bank Accounts........................................  22
      3.33    Permits..............................................  22
      3.34    Third Party Consents.................................  22
      3.35    Investment Representations...........................  22
      3.36    Brokers..............................................  23
      3.37    Net Assets...........................................  23
      3.38    Operating Profit.....................................  24
      3.39    Year 2000 Compliance.................................  24
      3.40    Absence of Liabilities to Lenders and Lienholders....  24
      3.41    Material Misstatements and Omissions.................  24

ARTICLE IV REPRESENTATIONS AND WARRANTIES OF COMPS.................  25

      4.1     Organization of COMPS................................  25
      4.2     Authority of COMPS...................................  25
      4.3     COMPS SEC Filings....................................  25

ARTICLE V ACTIONS BY THE PARTIES AFTER THE CLOSING.................  26

      5.1     Survival of Representations, Warranties, Etc.........  26
      5.2     Indemnification......................................  26
      5.3     Offset.                                                29
      5.4     Further Assurances...................................  30
      5.5     Restricted Securities................................  30

ARTICLE VI MISCELLANEOUS...........................................  32

      6.1     Notices..............................................  32
      6.2     Entire Agreement.....................................  33
      6.3     Waiver...............................................  33
      6.4     Amendment............................................  33
      6.5     No Third Party Beneficiary...........................  33
      6.6     No Assignment; Binding Effect........................  34
      6.7     Headings.............................................  34
      6.8     Severability.........................................  34
      6.9     Governing Law........................................  34
      6.10    Arbitration and Venue................................  34
      6.11    Consent to Jurisdiction and Forum Selection..........  35
      6.12    Expense..............................................  35
      6.13    Construction.........................................  35
      6.14    Counterparts.........................................  35
</TABLE>

                                     -ii-
<PAGE>

                             SCHEDULES AND EXHIBITS

Schedules
- ---------

Schedule 2.3 - Purchase Price Allocation
Disclosure Schedule

Exhibits
- --------

Exhibit A - Promissory Note
Exhibit B - Spousal Consent
Exhibit C - Non-Competition Agreement
Exhibit D - Company Officer and Stockholder Certificates
Exhibit E - Company Secretary Certificate
Exhibit F - Release
Exhibit G - Estoppel Certificate
Exhibit H - Independent Contractor Agreement
Exhibit I - COMPS Officer Certificate

                                     -iii-
<PAGE>

                            STOCK PURCHASE AGREEMENT

          This Stock Purchase Agreement ("Agreement") is made and entered into
as of August 27, 1999, by and among COMPS.COM, INC., a Delaware corporation
("COMPS"), Sendero Investments, Inc., a Texas corporation (the "Company"), and
Elliott P. Flick, the sole  stockholder of the Company (the "Stockholder").

                                    RECITALS
                                    --------

          WHEREAS, the Stockholder owns all of the issued and outstanding
capital stock of the Company, consisting of One Thousand (1,000) shares of
common stock, no par value per share (the "Company Stock");

          WHEREAS, the Company is in the business of operating the CBN (the
"Business");

          WHEREAS, the Company is a party to that certain joint venture with
ARA-D/FW, Inc. ("ARA-D/FW") in the operation of the Business and, as a result,
the Stockholder is willing to be a party to certain indemnification obligations
pertaining to the operation of the Business by ARA-D/FW as further described in
Article V below;

          WHEREAS, the Stockholder desires to sell the Company Stock to COMPS,
and COMPS desires to purchase the Company Stock from the Stockholder, on the
terms and conditions and for the consideration set forth herein.

          NOW, THEREFORE, in consideration of the premises and the mutual
covenants and promises contained herein, and for other good and valuable
consideration, the receipt and sufficiency of which are hereby acknowledged, the
parties hereto agree as follows:

                                   ARTICLE I
                                  DEFINITIONS
                                  -----------

          1.1  Defined Terms. As used in this Agreement, the following defined
               -------------
terms have the meanings indicated below:

          "Actions or Proceedings" means any action, suit, proceeding,
arbitration, Order (as defined below), inquiry, hearing, assessment with respect
to fines or penalties or litigation (whether civil, criminal, administrative,
investigative or informal) commenced, brought, conducted or heard by or before,
or otherwise involving, any Governmental or Regulatory Authority (as defined
below).

          "Affiliate" means, with respect to any Person, another Person that
directly, or indirectly through one or more intermediaries, controls, is
controlled by or is under common control with such Person.

          "ARA-D/FW" has the meaning set forth in the third (3rd) recital.
<PAGE>

          "Assets and Properties" and "Assets or Properties" of any Person each
means all assets and properties of every kind, nature, character and description
(whether real, personal or mixed, whether tangible or intangible, whether
absolute, accrued, contingent, fixed or otherwise and wherever situated),
including the goodwill related thereto, operated, owned or leased by such
Person, including, without limitation, cash, cash equivalents, accounts and
notes receivable, chattel paper, documents, instruments, general intangibles,
real estate, equipment, inventory, goods and Intellectual Property.

          "Benefit Plan" means any Plan established, arranged or maintained by
the Company or any corporate group of which the Company is or was a member,
existing at the Closing Date or prior thereto, to which the Company contributes
or has contributed, or under which any employee, officer, director or former
employee, officer or director of the Company or any beneficiary thereof is
covered, is eligible for coverage or has benefit rights.

          "Books and Records" of any Person means all files, documents,
instruments, papers, books, computer files (including but not limited to files
stored on a computer's hard drive or on floppy disks), electronic files and
records in any other medium relating to the business, operations or condition of
such Person.

          "Business" has the meaning set forth in the second (2nd) recital.

          "Business Day" means a day other than Saturday, Sunday or any day on
which banks located in the State of California are authorized or obligated to
close.

          "Cash Purchase Price" has the meaning set forth in Section 2.2(a).
                                                             --------------

          "CBN" means the Commercial Network Brokers.  CBN is a comprehensive,
internet-delivered, interactive, commercial real estate research and listings
service subscribed to by members (those principally involved in the commercial
real estate business for their livelihood). At its core are county tax records
(containing ownership, legal descriptions, property tax valuations, physical
property descriptions, chain of ownership and occasionally some sales
information); For lease databases (containing building-specific information for
virtually the entire significant industry inventory of office buildings, retail
centers, industrial complexes and apartment projects, such as:  property name,
address, physical details, leasing details-including rental rates, terms,
conditions, space availability, occupancy rates, and leasing commission
structures, additional information on current property management, personnel and
management companies, leasing personnel and their companies, and ownership). For
Sales databases, Sales Comparables (derived from county tax appraisal district),
key contact information on the persons in the industry, a listing of Travis
County Personal Property Tax Records of county businesses - containing key
contact person, approximate size, type of business with address. Finally the CBN
Needs and Email Notification systems helps brokers identify specific properties
that meet their clients' needs.

          "Closing" has the meaning set forth in Section 2.5(a).
                                                 --------------

          "Closing Date" means August 27 1999.

          "Code" means the Internal Revenue Code of 1986, as amended.

                                      -2-
<PAGE>

          "Company" has the meaning set forth in the first paragraph of this
Agreement.

          "Company Intellectual Property" means any Intellectual Property
relating to the Company and its business that is owned or exclusively licensed
to the Company.

          "Company Stock" has the meaning set forth in the first recital of this
Agreement.

          "COMPS" has the meaning set forth in the first paragraph of this
Agreement.

          "COMPS Common Stock" means the shares of COMPS common stock, $0.01 par
value.

          "COMPS Group" has the meaning set forth in Section 5.2(a).
                                                     --------------

          "COMPS SEC Filings" has the meaning set forth in Section 4.4.
                                                           -----------

          "COMPS Securities" has the meaning set forth in Section 2.4.
                                                          -----------

          "Defined Benefit Plan" means each Benefit Plan which is subject to
Part 3 of Title I of ERISA, Section 412 of the Code or Title IV of ERISA.

          "Disclosure Schedule" means the disclosure schedule attached hereto
which sets forth the exceptions to the representations and warranties contained
in Article 3 hereof and certain other information called for by this Agreement.
   ---------

          "Encumbrances" means any mortgage, pledge, assessment, security
interest, deed of trust, lease, lien, adverse claim, levy, charge or other
encumbrance of any kind, or any conditional sale or title retention agreement or
other agreement to give any of the foregoing in the future.

          "Environmental and Occupational Health Matters" has the meaning set
forth in Section 3.22.
         ------------

          "ERISA" means the Employee Retirement Income Security Act of 1974, as
amended, and the rules and regulations promulgated thereunder.

          "ERISA Affiliate" means any entity which is a member of a "controlled
group of corporations" or which is or was under "common control" with the
Company as defined in Section 414 of the Code.

          "Exchange Act" means the Securities Exchange Act of 1934, as amended.

          "Financial Statements" means (i) the audited balance sheet of the
Company and the related audited statement of income and retained earnings for
the fiscal year ended on December 31, 1998, together with the notes thereto and
the related report of Spranse & Winn LLP or Calhoun & Co., the Company's
independent certified public accountants and (ii) the Interim Financial
Statements (as defined below) for the Company.

                                      -3-
<PAGE>

          "GAAP" means generally accepted accounting principles, applied in a
manner consistent with the past practices of the Company.

          "Governmental or Regulatory Authority" means any court, tribunal,
arbitrator, authority, agency, commission, official or other instrumentality of
the United States or other country, any state, county, city or other political
subdivision.

          "Intellectual Property" means (i) inventions (whether patentable or
unpatentable and whether or not reduced to practice), all improvements thereto,
and all patents, patent applications and patent disclosures, together with all
reissuances, continuations, continuations-in-part, revisions, extensions and
reexaminations thereof; (ii) trademarks, service marks, trade dress, logos,
trade names and corporate names, together with all translations, adaptations,
derivations and combinations thereof and including all goodwill associated
therewith, and all applications, registrations and renewals in connection
therewith, copyrightable works, all copyrights and all applications,
registrations and renewals in connection therewith; (iii) mask works and all
applications, registrations and renewals in connection therewith; (iv) trade
secrets and confidential business information (including product specifications,
data, know-how, formulae, compositions, processes, designs, sketches,
photographs, graphs, drawings, samples, inventions and ideas, past, current
research and development, current research and distribution methodologies and
processes, customer lists, current and anticipated customer requirements, price
lists, market studies, business plans), however documented; (v) proprietary
computer software and programs (including object code and source code) and other
proprietary rights and copies and tangible embodiments thereof (in whatever form
or medium); (vi) database technologies, systems, structures and architectures
(and related processes, formulae, compositions, improvements, devices, know-how,
inventions, discoveries, concepts, ideas, designs, methods and information) and
any other related information, however, documented; (vii) any and all
information concerning the business and affairs of a Person (which includes
historical financial statements, financial projections and budgets, historical
and projected sales, capital spending budgets and plans, the names and
backgrounds of key personnel and personnel training and techniques and
materials), however documented; (viii) any and all notes, analysis,
compilations, studies, summaries, and other material prepared by or for a Person
containing or based, in whole or in part, on any information included in the
foregoing, however documented; (ix) all industrial designs and any registrations
and applications therefor; (x) all databases and data collections and all rights
therein; and (xi) any similar or equivalent rights to any of the foregoing
anywhere in the world.

          "Independent Contractor Agreement" has the meaning set forth in
Section 2.5(b)(vii);
- -------------------

          "Interim Financial Statements" means the unaudited balance sheet for
the five (5)-month period ended May 31, 1999 and the related unaudited statement
of income and retained earnings for the Company each case for the six (6)-month
period ended June 30, 1999.

          "Knowledge of the Stockholder and/or the Company" or "Known to the
Stockholder and/or the Company" means the actual knowledge of the Stockholder or
any officer or director of the Company, in each case after due inquiry and
comprehensive investigation.

                                      -4-
<PAGE>

          "Liabilities" means any liability (whether known or unknown, whether
asserted, or unasserted, whether absolute or contingent, whether accrued or
unaccrued, whether liquidated or unliquidated, and whether due or to become
due), including but not limited to any liability for Taxes (as defined below).

          "Material" has the meaning set forth in Section 3.21(e)(iv).
                                                  -------------------

          "Material Adverse Effect" means, for any Person, a material adverse
effect whether individually or in the aggregate (a) on the business, operations,
financial condition, Assets and Properties, Liabilities or prospects of such
Person, or (b) on the ability of such Person to consummate the transactions
contemplated hereby.

          "Non-Competition Agreements" has the meaning set forth in Section
                                                                    -------
2.5(b)(ii).
- ----------

          "Order" means any writ, judgment, decree, injunction or similar order
of any Governmental or Regulatory Authority (in each such case whether
preliminary or final).

          "Ordinary Course of Business" means the action of a Person that is
consistent with the past practices of such Person and is taken in the ordinary
course of the normal day-to-day operations of such Person.

          "Permits" means all licenses, permits, certificates of authority,
authorizations, approvals, registrations and similar consents granted or issued
by any Governmental or Regulatory Authority.

          "Permitted Encumbrance" means (a) any Encumbrance for taxes not yet
due or delinquent or being contested in good faith by appropriate proceedings
for which adequate reserves have been established in accordance with GAAP and
(b) any minor imperfection of title or similar Encumbrance which individually or
in the aggregate with other such Encumbrances does not impair the value of the
property subject to such Encumbrance or the use of such property in the conduct
of the business of the Company.

          "Person" means any natural person, corporation, general partnership,
limited partnership, limited liability company, proprietorship, other business
organization, trust, union, association or Governmental or Regulatory Authority.

          "Plan" means any bonus, incentive compensation, deferred compensation,
pension, profit sharing, retirement, stock purchase, stock option, stock
ownership, stock appreciation rights, phantom stock, leave of absence, layoff,
vacation, day or dependent care, legal services, cafeteria, life, health,
accident, disability, workers' compensation or other insurance, severance,
separation or other employee benefit plan, practice, policy or arrangement of
any kind, whether written or oral, including, but not limited to, any "employee
benefit plan" within the meaning of Section 3(3) of ERISA.

          "Promissory Note" has the meaning set forth in Section 2.2(b).
                                                         --------------

          "Purchase Price" has the meaning set forth in Section 2.2.
                                                        -----------

                                      -5-
<PAGE>

          "Real Property" has the meaning set forth in Section 3.15.
                                                       ------------

          "Release" has the meaning set forth in Section 2.5(b)(v).
                                                 -----------------

          "SEC" means the United States Securities and Exchange Commission, or
any successor entity.

          "Securities Act" means the Securities Act of 1933, as amended.

          "Stockholder" has the meaning set forth in the first paragraph of this
Agreement.

          "Qualified Plan" means each Benefit Plan which is intended to qualify
under Section 401 of the Code.

          "Tax" (and, with correlative meaning, "Taxes," "Taxable" and "Taxing")
means (i) any federal, state, local or foreign income, alternative or add-on
minimum tax, gross income, gross receipts, sales, use, ad valorem, transfer,
franchise, profits, license, withholding, payroll, employment, excise,
severance, stamp, occupation, premium, property, environmental or windfall
profit tax, custom, duty or other tax, governmental fee or other like assessment
or charge of any kind whatsoever, together with any interest or any penalty,
addition to tax or additional amount imposed by any Governmental or Regulatory
Authority responsible for the imposition of any such tax (domestic or foreign),
(ii) any Liability for payment of any amounts of the type described in (i) as a
result of being a member of an affiliated, consolidated, combined, unitary or
other group for any Taxable period and (iii) any Liability for the payment of
any amounts of the type described in (i) or (ii) as a result of any express or
implied obligation to indemnify any other person.

          "Tax Losses" means the meaning set forth in Section 5.2(e)(i).

          "Tax Return" means any return, report, information return, schedule or
other document (including any related or supporting information) filed or
required to be filed with respect to any taxing authority with respect to Taxes.

          "Threshold Amount" has the meaning set forth in Section 5.2(f)(i.)
                                                          ------------------

          1.2  Construction of Certain Terms and Phrases.  Unless the context of
               -----------------------------------------
this Agreement otherwise requires, (a) words of any gender include each other
gender; (b) words using the singular or plural number also include the plural or
singular number, respectively; (c) the terms "hereof," "herein," "hereby" and
derivative or similar words refer to this entire Agreement; (d) the terms
"Article" or "Section" refer to the specified Article or Section of this
Agreement; (e) the term "or" has, except where otherwise indicated, the
inclusive meaning represented by the phrase "and/or"; and (f) "including" means
"including without limitation." Whenever this Agreement refers to a number of
days, such number shall refer to calendar days unless Business Days are
specified. All accounting terms used herein and not expressly defined herein
shall have the meanings given to them under GAAP.

                                      -6-
<PAGE>

                                  ARTICLE II
                           PURCHASE AND SALE OF STOCK
                           --------------------------

          2.1  Sale of Company Stock by the Stockholder.  Subject to the terms
               ----------------------------------------
and conditions of this Agreement, the Stockholder agrees to sell to COMPS all of
the shares of the Company Stock and to deliver the certificates evidencing the
Company Stock to COMPS at the Closing. The Stockholder shall sell to COMPS all
of the Company Stock. The certificates for such shares will be properly endorsed
for transfer to or accompanied by duly executed stock powers in favor of COMPS
and otherwise in a form acceptable for transfer on the books of the Company.

          2.2  Purchase of Company Stock by COMPS.  Subject to the terms and
               ----------------------------------
conditions of this Agreement, COMPS agrees to acquire the Company Stock from the
Stockholder and to pay, or cause to be paid, to the Stockholder in exchange for
the Company Stock an aggregate purchase price of Six Hundred Twenty-Nine
Thousand Seven Hundred Forty-Eight Dollars ($629,748) (the "Purchase Price")
payable in the following manner:

               (a)  At the Closing, COMPS shall pay to the Stockholder the
aggregate sum of Two Hundred Twenty Three Thousand Fifty Seven Dollars and
Eighty Cents ($223,057.80) in cash (the "Cash Purchase Price").

               (b)  At the Closing, COMPS shall execute and deliver to the
Stockholder a subordinated convertible note (the "Promissory Note")
substantially in the form of Exhibit A attached hereto, in the aggregate amount
of Four Hundred Six Thousand Six Hundred Ninety Dollars and Twenty Cents
($406,690.20) (the "Note Purchase Price"), payable in monthly installments of
interest only commencing one month after the Closing Date and continuing for
forty-eight consecutive months thereafter, at which time the full balance of the
outstanding principal and interest, if any, will be due and payable. The final
maturity date shall be the last day of the forty-eighth (48th) month after the
Closing Date (the "Note Term"). The Promissory Note shall bear interest at a
rate of seven percent (7%) per annum. Subject to the terms and conditions in the
Promissory Note, in the event that (i) COMPS defaults under the terms of the
Promissory Note as a result of its failure to make timely payments or (ii)
COMPS' net worth is less than Ten Million Dollars ($10,000,000) at any time
during the Note Term (a "Default Event"), the outstanding balance of the
principal and accrued interest due on the Promissory Note may be convertible
into common stock of COMPS (the "COMPS Common Stock") during the period in which
the Default Event has not been cured. The number of shares of COMPS Common Stock
issuable upon such a conversion shall equal (i) the outstanding balance of the
principal and accrued interest at the time of the conversion, divided by (ii)
the average of the closing prices of a share of COMPS Common Stock on the Nasdaq
National Market for thirty (30) consecutive trading days ending on the trading
day immediately preceding the day of the Default Event.

          2.3  Purchase Price Allocation. The parties agree that COMPS, at its
               -------------------------
sole discretion, shall determine the allocation of the Purchase Price with
respect to the assets of the Company for all Tax purposes. The Stockholder, the
Company and COMPS, as applicable, shall file their respective Tax Returns in a
manner consistent with such allocation, which allocation is

                                      -7-
<PAGE>

set forth on Schedule 2.3. Schedule 2.3 shall be delivered by COMPS within
             ------------  ------------
thirty (30) days after completion of its next audited financial statements.

          2.4  Private Placement.  The Promissory Note and the COMPS Common
               -----------------
Stock issuable under the Promissory Note (the "COMPS Securities") will be exempt
from registration requirements of the Securities Act pursuant to the private
placement exemption provided by Rule 505 and/or 506 of Regulation D promulgated
under the Securities Act and/or Section 4(2) of the Securities Act, and
applicable state securities laws. The Stockholder hereby agrees to take all
actions and execute all subscription and other documents to qualify issuance of
the COMPS Securities for such exemptions.

          2.5  Closing.
               -------
               (a)  Time and Place. The consummation of the purchase and sale of
                    --------------
the Company Stock under this Agreement (the "Closing") shall take place at the
offices of Brobeck, Phleger & Harrison LLP, 550 West "C" Street, Suite 1200, San
Diego, California, at 10:00 a.m. on August 27, 1999, or at such time and in such
manner as the parties mutually agree (the "Closing Date").

               (b)  Closing Deliveries by the Company and the Stockholder. At
                    -----------------------------------------------------
the Closing, the Company and the Stockholder shall have delivered or caused to
be delivered to COMPS:

                    (i)    the original certificates representing all of the
issued and outstanding shares of Company Stock owned by the Stockholder, duly
endorsed in blank (or accompanied by duly executed stock powers) and, if
necessary, spousal consents by the spouse, if any, of the Stockholder,
substantially in theform of Exhibit B attached hereto, duly executed by such
                            ---------
spouse;

                    (ii)   Non-Competition Agreement by and between COMPS and
the Stockholder, substantially in the form of Exhibit C attached hereto (the
                                              ---------
"Non-Competition Agreement"), duly executed by the Stockholder.

                    (iii)  a certificate of an officer of the Company and of the
Stockholder, substantially in the form of Exhibit D attached hereto, duly
                                          ---------
executed by each of the Company and the Stockholder;

                    (iv)   certificate of the Secretary of the Company
substantially in the form of Exhibit E attached hereto, certifying as of the
                             ---------
Closing Date (A) a true and complete copy of the organizational documents of the
Company certified as of a recent date by the Secretary of State of Texas, (B) a
certificate of each appropriate Secretary of State certifying the account status
and existence of the Company in its state of incorporation and all states in
which it is qualified to do business, (C) a true and complete copy of the
resolutions of the board of directors of the Company and the resolutions of the
Stockholder of the Company, each authorizing the execution, delivery and
performance of this Agreement by the Company and the consummation of the
transactions contemplated hereby and (D) incumbency matters;

                                      -8-
<PAGE>

               (v)    a Release by the Stockholder, substantially in the form of
Exhibit F attached hereto (the "Release"), duly executed by the Stockholders;
- ---------

               (vi)   resignation letter of each of the officers, registered
agent and directors of the Company, dated effective as of the Closing;

               (vii)  Independent Contractor Agreements by and between COMPS and
each of Elliott Flick and Bruce Brooks, respectively, substantially in the form
of Exhibit G attached hereto (the "Independent Contractor Agreements"), duly
   ---------
executed by each of Elliott Flick and Bruce Brooks, respectively;

               (viii) such other documents as COMPS may reasonably request for
the purpose of facilitating the consummation of the transactions contemplated
herein.

          (c)  Closing Deliveries By COMPS. At the Closing, COMPS shall have
               ---------------------------
delivered or caused to be delivered to the Stockholder:

               (i)    the Cash Purchase Price by wire transfer in immediately
available funds to accounts designated by the Stockholder.

               (ii)   the Promissory Note duly executed by COMPS;

               (iii)  the Non-Competition Agreement, duly executed by COMPS;

               (iv)   a certificate of an officer of COMPS, substantially in the
form of Exhibit H attached hereto, duly executed by COMPS; and
        ---------

               (v)    the Independent Contractor Agreements, duly executed by
COMPS.

                                  ARTICLE III
       REPRESENTATIONS AND WARRANTIES OF THE STOCKHOLDER AND THE COMPANY
       -----------------------------------------------------------------

          The Company and the Stockholder, jointly and severally, represent and
warrant to COMPS as of the Closing, except as set forth on the Disclosure
Schedule furnished to COMPS specifically identifying the relevant section
hereof, which exceptions shall be deemed to be representations and warranties as
if made hereunder (provided that the disclosures in such exceptions shall be
true, complete and correct), as follows:

          3.1  Organization of the Company.  The Company is a corporation duly
organized, validly existing, and in good standing under the laws of the State of
Texas. The Company is duly authorized to conduct business and is in good
standing in each jurisdiction where such qualification is required except for
any jurisdiction where failure so to qualify would not have a Material Adverse
Effect upon the Company. The Company has full power and authority, and holds all
Permits and authorizations necessary to carry on its business and to own and use
the Assets and Properties owned and used by the Company except where the failure
to

                                      -9-
<PAGE>

have such power and authority or to hold such Permit or authorization would not
have a Material Adverse Effect on the Company's business. The Company has
delivered to COMPS correct and complete copies of its charter documents and
organizational documents, each as amended to date.

          3.2  Capital Stock of the Company.  The authorized capital stock of
               ----------------------------
the Company consists of Ten Thousand (10,000) shares of common stock, no par
value, of which One Thousand (1000) shares are issued and outstanding as of the
date hereof, and no shares in treasury, and no shares of Preferred Stock. No
shares of the Company's capital stock have been issued since the end of the
period covered by the Interim Financial Statements. The Company Stock is duly
authorized, validly issued, fully paid and nonassessable. Except for this
Agreement, there are no outstanding subscriptions, options, warrants, calls,
commitments or other rights of any kind for the purchase or acquisition of, nor
any securities convertible or exchangeable for, any capital stock of the
Company.

          3.3  Ownership of Shares. The Stockholder owns beneficially and of
               -------------------
record all of the shares of Company Stock, free and clear of all Encumbrances,
and has good and valid title to such shares. The delivery of the stock
certificate(s) representing the Company Stock owned by the Stockholder in the
manner provided in Section 2.5(b)(i) will transfer to COMPS good and valid title
                   -----------------
thereto free and clear of all Encumbrances.

          3.4  Authority of the Stockholder.  The Stockholder has the right,
               ----------------------------
power and authority to enter into this Agreement, to consummate the transactions
contemplated hereby and to perform his obligations hereunder, without obtaining
the approval or consent of any other Person. This Agreement has been duly and
validly executed and delivered by the Stockholder and constitutes a legal, valid
and binding obligation of the Stockholder enforceable against the Stockholder in
accordance with its terms except (i) as limited by applicable bankruptcy,
insolvency, reorganization, moratorium and other laws of general application
affecting enforcement of creditors' rights generally and (ii) as limited by laws
relating to the availability of specific performance, injunctive relief or other
equitable remedies.

          3.5  Authority of the Company. The Company has all necessary power and
               ------------------------
authority and has taken all action necessary to enter into this Agreement, to
consummate the transactions contemplated hereby and to perform its obligations
hereunder and no other proceedings on the part of the Company are necessary to
authorize this Agreement or to consummate the transactions contemplated hereby.
This Agreement has been duly and validly executed and delivered by the Company
and constitutes a legal, valid and binding obligation of the Company enforceable
against the Company in accordance with its terms except (i) as limited by
applicable bankruptcy, insolvency, reorganization, moratorium and other laws of
general application affecting enforcement of creditors' rights generally and
(ii) as limited by laws relating to the availability of specific performance,
injunctive relief or other equitable remedies.

          3.6  No Affiliates. Except for its joint venture with ARA-D/FW, the
               -------------
Company does not have any Affiliates and is not a partner in any partnership or
a party to a joint venture.

          3.7  No Conflicts.  The execution and delivery by the Stockholder and
               ------------
the Company of this Agreement does not, and the performance by the Stockholder
and the Company

                                     -10-
<PAGE>

of their respective obligations under this Agreement and the consummation of the
transactions contemplated hereby will not:

               (a)  conflict with or result in a violation or breach of any of
the terms, conditions or provisions of the charter documents, bylaws or other
organizational documents of the Company;

               (b)  conflict with or result in a violation or breach of any term
or provision of any law, Order, Permit, statute, rule or regulation applicable
to the Stockholder or the Company or any of the businesses, Assets or Properties
of the Stockholder or the Company;

               (c)  result in a breach of, or default under (or give rise to
right of termination, cancellation or acceleration) under any of the terms,
conditions or provisions of any note, bond, mortgage, indenture, license,
agreement, lease or other similar instrument or obligation to which the Company,
any of its Assets and Properties or the Company Stock may be bound; or

               (d)  result in an imposition or creation of any Encumbrance on
the business or Assets or Properties of the Company or the Company Stock.

          3.8  Consents and Governmental Approvals and Filings.  Except as set
               -----------------------------------------------
forth in the Disclosure Schedule, no consent, approval or action of, filing with
or notice to any Governmental or Regulatory Authority or other Persons on the
part of the Stockholder or the Company is required in connection with the
execution, delivery and performance of this Agreement or the consummation of the
transactions contemplated hereby.

          3.9  Books and Records.  The minute books and other corporate records
               -----------------
of the Company as made available to COMPS contain a true and complete record, in
all material respects, of all actions taken at all meetings and by all written
consents in lieu of meetings of the Stockholder, the boards of directors and
committees of the boards of directors of the Company. The stock transfer ledgers
and other similar records of the Company accurately reflect all issuances and
record transfers in the capital stock of the Company. The other Books and
Records of the Company are true, correct and complete.

          3.10 Financial Statements.  The Company has previously delivered to
               --------------------
COMPS the Financial Statements for the period ended December 31, 1997. The
Company will deliver its Financial Statements for the period ended December 31,
1998 and for the six (6) month period ended June 30, 1999, within thirty (30)
days after the Closing Date. The Financial Statements (i) are or will be, as the
case may be, true, correct and complete, (ii) are in accordance with the Books
and Records of the Company, (iii) have been or will be, as the case may be,
prepared in conformity with GAAP, and (iv) fairly present the financial
condition and results of operations of the Company, as of the respective dates
thereof and for the periods covered thereby; provided that the Interim Financial
                                             --------
Statements are subject to normal year-end adjustments and lack footnotes and
certain other presentation items.

          3.11 Absence of Changes. Since the end of the period covered by the
               ------------------
Interim Financial Statements and up to the Closing Date, the Company and the
Stockholder have conducted the Company's business only in the Ordinary Course of
Business and there has not

                                     -11-
<PAGE>

been any adverse change, or any event or development which, individually or
together with other such events, could reasonably be expected to result in a
Material Adverse Effect on the Company or the Assets and Properties and since
the end of the period covered by the Interim Financial Statements, none of the
Company and the Stockholder have taken any action which if taken after the date
of this Agreement, without COMPS's consent, would violate Section 3.29 hereof.
                                                          ------------

          3.12 No Undisclosed Liabilities.   Except as disclosed in the
               --------------------------
Disclosure Schedule or in the Financial Statements, there are no Liabilities,
nor any basis for any claim against the Company for any such Liabilities,
relating to or affecting the Company or any of its Assets and Properties, other
than Liabilities incurred after the end of the period covered by the Interim
Financial Statements in the Ordinary Course of Business which have not had, and
could not reasonably be expected to result in, individually or in the aggregate,
a Material Adverse Effect on the Company.

          3.13 Tangible Personal Property.   The Company is in possession of and
               --------------------------
has good and marketable title to, or has valid leasehold interests in or valid
rights under written agreements to use, all tangible personal property,
equipment, plants, buildings, structures, facilities and all other Assets and
Properties used in or reasonably necessary for the conduct of the Company's
business, including all tangible personal property reflected on the Financial
Statements and on the Interim Financial Statements and any tangible personal
property acquired since that date other than property disposed of since such
date in the Ordinary Course of Business. All such tangible personal property,
equipment, plants, buildings, structures, facilities and all other assets and
properties are listed in the Disclosure Schedule and are free and clear of all
Encumbrances, other than Permitted Encumbrances. Such tangible personal property
shall include all Company Intellectual Property necessary for the ownership and
operation of the Business. All of the software in the Company Intellectual
Property shall be fully functional and free of defect as delivered upon Closing.
In the event the software in the Company Intellectual Property becomes defective
or is not functional in the same manner that it functioned prior to the Closing
as a result of (i) the source code of such software being altered by COMPS, (ii)
the maintenance of such software is changed from that on the Closing Date or
(iii) the data entry procedures are changed from those on the Closing Date
(collectively, the "Altered Software"), the representation in the immediately
preceding sentence shall become null and void with respect to the Altered
Software.

          3.14 Benefit Plans; ERISA.
               --------------------

          The Company has no Benefit Plans or any other similar plans.

               (a)  The Company has no commitment, proposal, or communication to
employees regarding the creation of any Benefit Plan or Plan. Neither the
Company, an ERISA Affiliate or predecessor thereof has ever maintained,
contributed to or been obligated to contribute to any Defined Benefit Plan or
multiemployer plan (as defined in Section (3)(37) or 4001(a)(3) of ERISA) and no
condition exists that presents a risk to the Company or an ERISA Affiliate of
incurring a liability under Title IV of ERISA. Except as set forth in the
Disclosure Schedule, the consummation of the transactions contemplated by this
Agreement will not, either immediately or upon the occurrence of any event
thereafter, (i) entitle any current or former employee or officer or director of
the Company or any ERISA Affiliate to severance pay,

                                     -12-
<PAGE>

unemployment compensation or any other payment, or (ii) accelerate the time of
payment or vesting, or increase the amount of compensation otherwise due any
such individual.

          3.15 Real Property.   The Company owns no parcel of real property and
               -------------
leases no real parcel of real property. COMPS shall not incur any liability
arising from any real property owned or leased by the Company or the
Stockholder.

          3.16 Intellectual Property Rights.
               ----------------------------

               (a)  The Disclosure Schedule lists contains a true, complete and
correct list and summary of all of the Company Intellectual Property. The
Company has delivered to COMPS complete and accurate copies of each agreement,
registration and other documents relating to the Company Intellectual Property
set forth on the Disclosure Schedule.

               (b)  The Company owns or possess adequate and enforceable
licenses, patents, trademarks, service marks, brand names and trade names, all
applications for any of the foregoing, all other trade secrets, designs, plans,
specifications and other rights of every kind necessary to use the Company
Intellectual Property. The Company is not in violation of, or infringing upon,
any Intellectual Property of any third party, and no claims have been asserted,
nor is there any litigation pending or, to the Knowledge of the Stockholder and
the Company, threatened claiming such infringement. Other than commercially
available over-the-counter "shrink wrap" software, the Disclosure Schedule
identifies each item of Intellectual Property that any third party owns and that
the Company uses pursuant to license, sublicense, agreement or permission. With
respect to each such item: (i) the license, sublicense, agreement or permission
covering the item is legal, valid, binding, enforceable and in full force and
effect against the Company; (ii) the license, sublicense, agreement or
permission will continue to be legal, valid, binding, enforceable and in full
force and effect on identical terms following the consummation of the
transactions contemplated hereby; (iii) neither the Company, nor to the
Knowledge of the Stockholder or the Company, the other party to the license,
sublicense, agreement or permission is in breach or default, and to the
Knowledge of the Stockholder and the Company, no event has occurred which with
notice or lapse of time would constitute a breach or default or permit
termination, modification or acceleration thereunder; (iv) neither the Company,
nor to the Knowledge of the Stockholder and the Company, the other party to the
license, sublicense, agreement or permission has repudiated any provision
thereof; (v) with respect to each sublicense, the representations and warranties
set forth in subsections (i) through (iv) above are true and correct with
respect to the underlying license; (vi) the underlying item of Intellectual
Property is not subject to any outstanding Order; (vii) no Actions or
Proceedings against the Company are pending or, to the Knowledge of the
Stockholder and the Company, are threatened which challenge the legality,
validity or enforceability of the underlying item of Intellectual Property; and
(viii) the Company has not granted any sublicense or similar right with respect
to the license, sublicense, agreement or permission. The Company has delivered
to COMPS complete and accurate copies of each agreement, registration and other
documents relating to Company Intellectual Property.

          3.17 Proprietary Information of Third Parties. No third party has
               ----------------------------------------
claimed or, to the Knowledge of the Stockholder and the Company, has reason to
claim that any person employed by or, to the Knowledge of the Stockholder and
the Company, affiliated with the

                                     -13-
<PAGE>

Company in connection with and during the Company's ownership and operation of
its business has (i) violated or may be violating any of the terms or conditions
of such person's employment, non-competition or non-disclosure agreement with
such third party, (ii) disclosed or may be disclosing or utilized or may be
utilizing any trade secret or proprietary information or documentation of such
third party, or (iii) interfered or may be interfering in the employment
relationship between such third party and any of its present or former
employees. No third party has requested information from the Company which
suggests that such a claim might be contemplated. No person employed by or
affiliated with the Company in connection with and during the Company's
ownership and operation of its business has employed or proposes to employ any
trade secret or any information or documentation proprietary to any former
employer and no person employed by or affiliated with the Company in connection
with and during the Company's ownership and operation of its business has
violated any confidential relationship which such person may have had with any
third party, in connection with the development, manufacture or sale of any
product or proposed product or the development or sale of any service or
proposed service of the Company, and the Stockholder and the Company have no
reason to believe there will be any such employment or violation.

          3.18 Litigation.  There are no Actions or Proceedings pending or
               ----------
threatened or, to the Knowledge of the Stockholder and the Company, anticipated
against, relating to or affecting (i) the Company, its Assets and Properties or
the Company's business, (ii) the Stockholder and his business and properties, or
(iii) the transactions contemplated by this Agreement, and there is no basis for
any such Action or Proceeding. The Company is not in default with respect to any
Order, and there are no unsatisfied judgments against the Company.

          3.19 Compliance with Law.  The Company is in compliance with all
               -------------------
applicable laws, statutes, Orders, ordinances and regulations, whether federal,
state, local or foreign, except where the failure to comply, in each instance
and in the aggregate, could not reasonably be expected to result in a Material
Adverse Effect on the Company. Neither the Company nor the Stockholder has
received any written notice to the effect that, or otherwise has been advised
that, the Company is not in compliance with any of such laws, statutes, Orders,
ordinances or regulations, where the failure to comply could reasonably be
expected to result in a Material Adverse Effect on the Company.

          3.20 Contracts.
               ---------

               (a)  The Disclosure Schedule contains a true and complete list of
each of the following written or oral contracts, agreements or other
arrangements to which the Company is a party or by which any of its Assets and
Properties is bound (and, to the extent oral, accurately describes the terms of
such contracts, agreements and arrangements):

                    (i)    all collective bargaining or similar labor
     agreements;

                    (ii)   all contracts for the employment of any officer,
     employee or other person or entity on a full time, part time, consulting or
     other basis;

                                     -14-
<PAGE>

                    (iii)  all loan agreements, indentures, debentures, notes or
     letters of credit relating to the borrowing of money or to mortgaging,
     pledging or otherwise placing a lien on any material asset or material
     group of assets of the Company;

                    (iv)   all guarantees of any obligation;

                    (v)    all leases or agreements under which the Company is
     lessee or lessor of, or holds, or operates, any property, real or personal,
     owned by any other party;

                    (vi)   all commitments, contracts, sales contracts, purchase
     orders, mortgage agreements or groups of related agreements with the same
     party or any group or affiliated parties which require or may in the future
     require payment of any consideration by the Company;

                    (vii)  all license agreements, distribution agreements or
     any other agreements involving any Company Intellectual Property;

                    (viii) all subscription or registration rights agreements or
     any other agreements related to the equity ownership of the Company;

                    (ix)   all contracts or commitments that in any way restrict
     the Company from carrying on its business anywhere in the world; and

                    (x)    all other contracts and agreements that (A) involve
     the payment or potential payment, pursuant to the terms of any such
     contract or agreement, by the Company and (B) cannot be terminated within
     thirty (30) days after giving notice of termination without resulting in
     any cost or penalty to the Company.

               (b)  Each contract, agreement or other arrangement disclosed in
the Disclosure Schedule is in full force and effect and constitutes a legal,
valid and binding agreement, enforceable in accordance with its terms, of each
party thereto; and the Company has performed all of its required obligations
under, and is not in violation or breach of or default under, any such contract,
agreement or arrangement. The other parties to any such contract, agreement or
arrangement are not in violation or breach of or default under any such
contract, agreement or arrangement. None of the present or former employees,
officers, directors or shareholders of the Company is a party to any oral or
written contract or agreement prohibiting any of them from freely competing with
other parties or engaging in the Company's as now operated.

          3.21 Assignment of Company Revenue. Prior to the Closing Date, the
               -----------------------------
Company assigned its gross revenues derived from the Business to Parramore, Inc.
(the "Parramore Assignment Obligation"). As of the Closing Date, the Parramore
Assignment Obligation will have terminated, the Company will have no obligations
of any kind or nature to assign any portion of its gross revenues derived from
the Business to Parramore, Inc. or any other party and COMPS shall have all
right, title and interest to any such gross revenue derived from the Business on
and after the Closing Date free and clear of all Encumbrances.

                                     -15-
<PAGE>

          3.22 Environmental and Occupational Health Matters. The Company has
               ---------------------------------------------
not been and currently is not in violation (or alleged to be in violation) of
any applicable statute, law or regulation relating to the environment or
occupational health and safety ("Environmental and Occupational Laws"). There
are no circumstances which may materially prevent or interfere with compliance
in the future of any Environmental and Occupational Laws.

          3.23 Accounts Receivable.  The accounts receivable and all other
               -------------------
receivables shown on the Financial Statements and on the Interim Financial
Statements (subject to reserves for non-collectability as reflected therein),
and all receivables acquired or generated by the Company since the end of the
period covered by the Interim Financial Statements (subject to reserves for non-
collectability as reflected on the books and financial statements of the
Company), are bona fide receivables and represent amounts due with respect to
actual, arms-length transactions entered into in the Ordinary Course of Business
of the Company and are collectible, legal, valid and binding obligations of the
obligors, and will be collected by the Company without counterclaim or setoff.
Such reserves have been reflected on the books and financial statements of the
Company in accordance with GAAP.

          3.24 Equipment.  All equipment used by the Company in the conduct of
               ---------
its business are structurally sound with no known material defects and are in
good operating condition and repair (subject to normal wear and tear) so as to
permit the operation of its business as presently conducted. No such equipment
is in need of maintenance or repairs except for ordinary, routine maintenance
and repairs which are not material in nature or cost. With respect to each item
of equipment, the Company has not received notification that it is in violation,
in any material respect, of any applicable building, zoning, subdivision, fire
protection, health or other law, Order, ordinance or regulation and no such
violation exists.

          3.25 Insurance. Set forth on the Disclosure Schedule is a complete and
               ---------
accurate list of all primary, excess and umbrella policies, bonds and other
forms of insurance currently owned or held by or on behalf of and/or providing
insurance coverage to the Company or the Assets and Properties of the Company
(or any of the Company's directors, officers, salespersons, agents or
employees), including the following information for each such policy: type(s) of
insurance coverage provided; name of insurer; effective dates; policy number;
per occurrence and annual aggregate deductibles or self-insured retentions; per
occurrence and annual aggregate limits of liability and the extent, if any, to
which the limits of liability have been exhausted. All policies set forth on the
Disclosure Schedule are in full force and effect, and with respect to such
policies, all premiums currently payable or previously due have been paid, and
no notice of cancellation or termination has been received with respect to any
such policy. All such policies are sufficient for compliance with all
requirements of law and all agreements to which the Company is a party or
otherwise bound, and are valid, outstanding, collectible and enforceable
policies and provide adequate insurance coverage for the Company and the
business and Assets and Properties of the Company and will remain in full force
and effect through the respective dates set forth in the Disclosure Schedule.
None of such policies contains a provision that would permit the termination,
limitation, lapse, exclusion or change in the terms of coverage of such policy
(including, without limitation, a change in the limits of liability) by reason
of the consummation of the transactions contemplated by this Agreement. Complete
and accurate copies of all such policies and related documentation have
previously been provided to COMPS.

                                     -16-
<PAGE>

          3.26 Tax Matters.
               -----------

               (a)  The Company has or will have filed with the appropriate
federal, state, local and foreign taxing authorities all Tax Returns required to
be filed by or with respect to it on or before the Closing Date, and such Tax
Returns are or will be true, correct and complete in all material respects. The
Company has paid in full or has made provision in the Financial Statements and
the Interim Financial Statements for all taxes which are due or claimed to be
due from it by any taxing authority. The reserves for Taxes reflected in the
Financial Statements and in the Interim Financial Statements are sufficient for
payment in full of all unpaid Taxes (whether or not currently known or disputed)
through the date thereof. The Company has not incurred any liability for Taxes
other than in the ordinary course of its business since the date of the most
recent Interim Financial Statement. Except as set forth in the Disclosure
Schedule, there are no liens for Taxes upon the Assets and Properties of the
Company except for statutory liens for current Taxes not yet due.

               (b)  The Company has not requested any extension of time within
which to file any Tax Return, which Tax Return has not since been filed, or,
except as set forth in the Disclosure Schedule, waived any statute of
limitations for, or agreed to any extension of time with respect to, the
assessment of Taxes. Except as set forth in the Disclosure Schedule, the statute
of limitations for all Tax Returns of the Company has expired for all federal,
state, local and foreign Taxes, or the Tax Returns of the Company have been
examined by the appropriate taxing authorities for all periods. Except as set
forth in the Disclosure Schedule, the Company has not received any notice of
deficiency or assessment from any federal, state, local or foreign taxing
authorities with respect to liabilities for Taxes which have not been fully paid
or finally settled, and any such deficiency or assessment shown on the
Disclosure Schedule is being contested in good faith through appropriate
proceedings. Further, no state of facts exists or has existed which would
constitute grounds for the assessment of any liability for Taxes with respect to
the periods prior to the Closing Date which have not been audited by any taxing
authority. Neither the Company, its officers or directors, nor the Stockholder
are aware of any information which has caused or should cause them to believe
that an audit by any Tax authority may be forthcoming. No claim has ever been
made by an authority in a jurisdiction where the Company does not file Tax
Returns that it is or may be subject to taxation by that jurisdiction.

               (c)  The Company has withheld and paid all Taxes required to have
been withheld and paid in connection with amounts paid or owing to any employee,
independent contractor, creditor, stockholder, or other third party.

               (d)  The Company does not have any liability for the Taxes of any
other Person (A) under Treasury Regulations (S) 1.1502-6 (or any similar
provision of state, local, or foreign law), (B) as a transferee or successor,
(C) by contract, or (D) otherwise.

               (e)  The Company has not filed and will not file prior to the
Closing a consent under Code (S) 341(f). The Company is not obligated to make
any payments, and is not a party to any agreement that under certain
circumstances could obligate it to make any payments that will not be deductible
under Code (S) 162 or (S) 280G whether paid prior to or after the Closing. Prior
to the Closing, the Company will not have experienced a change of ownership

                                     -17-
<PAGE>

within the meaning of Code Section 382. The Company is not and has not been a
United States real property holding corporation within the meaning of Code (S)
897(c)(2).

          3.27 Labor and Employment Relations.  The Company has no employees.
               ------------------------------
There are no pending or, to the Knowledge of Sellers, threatened charges (by
employees, their representatives or governmental authorities) of unfair labor
practices or of employment discrimination or of any other wrongful action with
respect to any aspect of employment of any person formerly employed by the
Company.

          3.28 Certain Employees.  Set forth on the Disclosure Schedule is a
               -----------------
list of the names of the Company's employees and consultants as of the date
hereof involved in the management and/or business operations of the Company,
together with the title or job classification of each such person and the total
compensation (with wages and bonuses, if any, separately detailed) paid in 1998
(if applicable) and the current rate of pay for each such person on the date of
this Agreement. Except as set forth on the Disclosure Schedule, none of such
persons has an employment agreement or understanding, whether oral or written,
with the Company which is not terminable on notice by the Company without cost
or other liability to the Company.

          3.29 Absence of Certain Developments.  Since the end of the period
               -------------------------------
covered by the Interim Financial Statements, the Company has not:

               (a)  issued any stock, bonds or other corporate securities or any
right, options or warrants with respect thereto;

               (b)  borrowed any amount, obtained any letters of credit or
incurred or become subject to any Liabilities in excess of Twenty Thousand
Dollars ($20,000) in the aggregate;

               (c)  discharged or satisfied any lien or Encumbrance or paid any
obligation or Liability, other than current Liabilities paid in the Ordinary
Course of Business and other than current federal income Tax liabilities;

               (d)  declared or made any payment or distribution of cash or
other property to shareholders with respect to its stock, or purchased or
redeemed any shares of its capital stock;

               (e)  mortgaged or pledged any of its Assets or Properties, or
subjected them to any lien, charge or any other Encumbrance, except liens for
current property Taxes not yet due and payable;

               (f)  sold, leased, subleased, assigned or transferred any of its
Assets or Properties, except in the Ordinary Course of Business, or cancelled
any debts or claims;

               (g)  made any changes in any employee compensation, severance or
termination agreement, commitment or transaction other than routine salary
increases consistent with past practice or offer employment to any individuals
with an annual compensation,

                                     -18-
<PAGE>

including salary, cash, bonuses and commissions, in excess of Six Thousand
Seventy Five Dollars ($6,075) per month prorated;

               (h)  entered into any material transaction, or modified any
existing transaction (the aggregate consideration for which is in excess of Ten
Thousand Dollars ($10,000);

               (i)  suffered any damage, destruction or casualty loss, whether
or not covered by insurance;

               (j)  made any capital expenditures, additions or improvements or
commitments for the same, except those made in the Ordinary Course of Business
which in the aggregate do not exceed Ten Thousand Dollars ($10,000);

               (k)  entered into any transaction or operated the Company's
business, not in the Ordinary Course of Business;

               (l)  made any change in its accounting methods or practices or
ceased making accruals for taxes, obsolete inventory, vacation and other
customary accruals;

               (m)  ceased from reserving cash to pay taxes, principal and
interest on borrowed funds, and other customary expenses and payments;

               (n)  caused to be made any reevaluation of any of its Assets or
Properties;

               (o)  caused to be entered into any amendment or termination of
any lease, customer or supplier contract or other material contract or agreement
to which it is a party;

               (p)  made any material change in any of its business policies,
including, without limitation, advertising, distributing, marketing, pricing,
purchasing, personnel, sales, returns, budget or product acquisition or sale
policies;

               (q)  terminated or failed to renew, or received any written
threat (that was not subsequently withdrawn) to terminate or fail to renew, any
contract or other agreement that is or was material to the Company's business or
its financial condition;

               (r)  permitted to occur or be made any other event or condition
of any character which has had a Material Adverse Effect on it;

               (s)  waived any rights material to its financial or business
condition;

               (t)  made any illegal payment or rebates; or

               (u)  entered into any agreement to do any of the foregoing.


          3.30 Customers.  The Company has previously provided to COMPS a true
               ---------
and correct list of the Company's customers during the 1998 fiscal year and the
seven (7)-month

                                     -19-
<PAGE>

period ended July 31, 1999. Except as set forth in the Disclosure Schedule,
since December 31, 1998, no single customer or group of affiliated customers
contributing more than Five Thousand Dollars ($5,000) per annum to the gross
revenues of the Company has stopped doing business with the Company and, to the
Knowledge of the Stockholder and the Company, no such customer has an intention
to discontinue doing business or reduce the level of gross revenues from that in
fiscal years 1998 or 1999 with the Company.

          3.31 Necessary Property.  All of the Real Property and Assets and
               ------------------
Properties owned or leased by the Company and the Intellectual Property listed
on the Disclosure Schedule owned by or licensed to the Company constitute all of
the property reasonably necessary for the conduct of the Company's business in
the manner and to the extent presently conducted by the Company.

          3.32 Bank Accounts.   The Disclosure Schedule contains a complete and
               -------------
accurate list of each deposit account or asset maintained by or on behalf of the
Company with any bank, brokerage house or other financial institution,
specifying with respect to each the name and address of the institution, the
name under which the account is maintained, the account number, and the name and
title or capacity of each Person authorized to have access thereto.

          3.33 Permits.  No Permits are necessary for the Company to conduct the
          ------------
Business in compliance with all applicable federal, state and local laws.
Neither the execution, delivery or performance of this Agreement nor the mere
passage of time will cause any Permits to be required by virtue of the
execution, delivery or performance of this Agreement to enable the Company to
conduct its business as now operated. There is no pending Action or Proceeding
by any Governmental or Regulatory Authority which could affect the current
conduct of the Company's business or of the conduct of the Company's business
after the Closing.

          3.34 Third Party Consents.  No consent, approval or authorization of
               --------------------
any third party on the part of any Stockholder or the Company is required in
connection with the consummation of the transactions contemplated hereunder
except as otherwise provided in the Disclosure Schedule.

          3.35 Investment Representations.  The Stockholder is an "accredited
investor" within the meaning of the Securities Act. The Stockholder is aware
that COMPS Securities issued or issuable pursuant to this Agreement have not
been registered under the Securities Act or any applicable state securities
laws, and agrees that COMPS Securities will not be offered or sold in the
absence of registration under the Securities Act and any applicable state
securities laws or an exemption from the registration requirements of the
Securities Act and any applicable state securities laws, which shall be
accompanied by an opinion of counsel to the Stockholder satisfactory to COMPS
and its counsel that registration of such securities is not required. The
Stockholder agrees not to transfer COMPS Securities in violation of the
provisions of any applicable federal or state securities laws. In this
connection, the Stockholder represents that the Stockholder is familiar with
Rule 144 and Rule 145 promulgated by the SEC pursuant to the Securities Act, as
presently in effect, and understands the resale limitations imposed thereby and
by the Securities Act. The Stockholder understands that the offering and sale of
COMPS Securities is intended to be exempt from registration under the Securities
Act, by virtue of the private placement exemption provided by Rule 505 and/or
506 of Regulation D

                                     -20-
<PAGE>

promulgated under the Securities Act and/or Section 4(2) of the Securities Act,
based, in part, upon the representations, warranties and agreements contained in
this Agreement, and COMPS may rely on such representations, warranties and
agreements in connection therewith. The Stockholder is acquiring COMPS
Securities for the Stockholder's own account and for investment, and not with a
view to the distribution thereof or with any present intention of distributing
or selling any of COMPS Securities except in compliance with the Securities Act.
The Stockholder represents that by reason of the Stockholder's business and
financial experience, and the business and financial experience of those
persons, if any, retained by the Stockholder to advise him, her or it with
respect to the investment in COMPS Securities, the Stockholder together with
such advisors have knowledge, sophistication and experience in business and
financial matters as to be capable of evaluating the merits and risk of the
prospective investment. The financial condition and investments of the
Stockholder are such that the Stockholder is in a financial position to hold
COMPS Securities for an indefinite period of time and to bear the economic risk
of, and withstand a complete loss of, the investment in COMPS Securities. The
Stockholder has carefully examined this Agreement and all exhibits and schedules
thereto and COMPS SEC Filings. The Stockholder acknowledges that COMPS has made
available all documents and information that the Stockholder has requested
relating to COMPS and has provided answers to all of the Stockholder's questions
concerning COMPS and/or COMPS Securities. In evaluating the suitability of the
acquisition of COMPS Securities hereunder, the Stockholder has not relied upon
any representations or other information (whether oral or written) other than as
set forth in COMPS SEC Filings or as contained herein.

          3.36  Brokers. The Company has retained a broker, William York, in
                -------
connection with the transactions contemplated hereunder. COMPS has, and will
have, no obligation to pay any broker's, finder's, investment banker's,
financial advisor's or similar fee in connection with this Agreement or the
transactions contemplated hereby by reason of any action taken by or on behalf
of the Stockholder or the Company.

          3.37  Net Assets. Net Assets ("Net Assets") for May 31 1999 and as of
                ----------
the Closing Date is calculated as assets less liabilities as described in the
May 31, 1999 balance sheet attached hereto (the "May 31 Balance Sheet"). The May
31 Balance Sheet is true, complete and accurate. The calculation of the Net
Assets as of the Closing Date will be based on an accounting basis consistent
with the May 31 Balance Sheet; specially, there shall be no adjustments for
unearned revenue, federal or Texas franchise taxes, or accrued annual leave. The
Stockholder agrees that there shall be an adjustment to the Purchase Price if
the Net Assets as the Closing Date is less than Six Thousand Seven Hundred and
Nine Dollars ($6,709). Such purchase price adjustment shall be in the form of an
offset against the Promissory Note.

          3.38  Operating Profit. The aggregate net income of the Parramore,
                ----------------
Inc. and CBN/ARA-HL for the first six (6) months of 1999 as described in the
Interim Financial Statements (the "Pre-audited Net Income") shall not have
decreased by more than Ten Thousand Dollars ($10,000) for the same period from
the net income (cash basis adjusted) described in the audited version of the
Interim Financial Statements (the "Audited Net Income") to be delivered within
thirty (30) days following the Closing. In the event the Pre-audited Net Income
is less than the Audited Net Income by more than Ten Thousand Dollars ($10,000),
the Stockholder shall be obligated to indemnify COMPS pursuant to Section 5.2
                                                                  -----------
below for an amount equal the

                                     -21-
<PAGE>

product of (i) five (5) times the difference between such Pre-audited Net Income
and the Audited Net Income, multiplied by (ii) two (2). This product represents
                            ----------
the annualized result.

          3.39  Year 2000 Compliance. For purposes of this Section: (i) "Year
                --------------------
2000 Processing" means processing by the Company Intellectual Property that
manage and/or manipulate data involving dates, including single century formulas
and multi-century formulas and dates on or after January 1, 2000; and (ii)
"properly perform the Year 2000 Processing" means that the Company's
Intellectual Property will not cause an abnormally ending dating scenario within
the application or result in incorrect values generated involving such dates.
The Stockholder warrant that (x) any version of Company's Intellectual Property
being transferred to COMPS, other than over-the-counter "shrink wrap" software,
shall properly perform Year 2000 Processing, and (y) all other versions of
Company's Intellectual Property provided by the Company shall properly perform
Year 2000 Processing. The Stockholder shall have the right to cure any Year 2000
Processing problems that arise from any Year 2000 process automatically provided
that the Stockholder resolve such Year 2000 processing problem by December 1,
1999.

          3.40  Absence of Liabilities to Lenders. As of the Closing Date, the
                ---------------------------------
Company does not owe Stockholder or his Affiliate any money related to any loans
previously made by Stockholder or his Affiliate to the Company (the "Loans").
All obligations pursuant to the Loans have been paid in full, and all promissory
notes related to the Loans have been cancelled. On and after the Closing Date,
the Company shall not have any liability or incur any Damages related to the
Loans.

          3.41  Material Misstatements and Omissions. The statements,
                ------------------------------------
representations and warranties of the Stockholder contained in this Agreement
(including the exhibits and schedules hereto) and in each document, statement,
certificate or exhibit furnished or to be furnished by or on behalf of the
Company and the Stockholder pursuant hereto, or in connection with the
transactions contemplated hereby, taken together, do not contain and will not
contain any untrue statement of a material fact and do not and will not omit to
state a material fact necessary to make the statements or facts contained herein
or therein, in light of the circumstances made, not misleading.


                                  ARTICLE IV
                    REPRESENTATIONS AND WARRANTIES OF COMPS
                    ---------------------------------------

               COMPS represents and warrants to the Stockholder as of the
Closing as follows:

          4.1  Organization of COMPS. COMPS is a corporation duly organized,
               ---------------------
validly existing, and in good standing under the laws of the State of Delaware.
COMPS is duly authorized to conduct business and is in good standing under the
laws of each jurisdiction where such qualification is required except for any
jurisdiction where failure so to qualify would not have a Material Adverse
Effect upon COMPS. COMPS has full power and authority, and holds all Permits and
authorizations necessary, to carry on the business in which it is engaged and to
own and use the properties owned and used by it except where the failure to have
such power

                                     -22-
<PAGE>

and authority or to hold such license, permit or authorization would not have a
Material Adverse Effect on COMPS.

          4.2  Authority of COMPS. COMPS has all necessary corporate power and
               ------------------
corporate authority and has taken all corporate actions necessary to enter into
this Agreement, to consummate the transactions contemplated hereby and to
perform its obligations hereunder and no other proceedings on the part of COMPS
are necessary to authorize this Agreement or to consummate the transactions
contemplated hereby. This Agreement has been duly and validly executed and
delivered by COMPS and constitutes a legal, valid and binding obligation of
COMPS enforceable against COMPS in accordance with its terms except (i) as
limited by applicable bankruptcy, insolvency, reorganization, moratorium and
other laws of general application affecting enforcement of creditors' rights
generally and (ii) as limited by laws relating to the availability of specific
performance, injunctive relief or other equitable remedies.

          4.3  COMPS SEC Filings. COMPS has furnished or made available to the
               -----------------
Stockholder copies of all reports or registration statements filed by it with
the SEC under the Securities Act and the Exchange Act for all periods since May
5, 1999, all in the form so filed (all the foregoing being collectively referred
to as the "COMPS SEC Filings"). As of their respective filing dates, the COMPS
SEC Filings complied in all material respects with the requirements of the
Securities Act or the Exchange Act, as the case may be, and none of the COMPS
SEC Filings contained any untrue statement of a material fact or omitted to
state a material fact required to be stated therein or necessary to make the
statements made therein, in light of the circumstances in which they were made,
not misleading, except to the extent corrected by a document subsequently filed
with the SEC. The financial statements of COMPS, including the notes thereto,
included in the COMPS SEC Filings comply as to form in all material respects
with applicable accounting requirements and with the published rules and
regulations of the SEC with respect thereto, have been prepared in accordance
with GAAP consistently applied (except as may be indicated in the notes thereto
or, in the case of unaudited statements, as permitted by Form 10-Q of the SEC)
and present fairly the financial position of COMPS at the dates thereof and the
results of its operations and cash flows for the periods then ended (subject, in
the case of unaudited statements, to normal audit adjustments).


                                   ARTICLE V
                   ACTIONS BY THE PARTIES AFTER THE CLOSING
                   ----------------------------------------

          5.1  Survival of Representations, Warranties, Etc. The
               --------------------------------------------
representations, warranties and covenants contained in or made pursuant to this
Agreement or any certificate, document or instrument delivered pursuant to or in
connection with this Agreement in the transactions contemplated hereby shall
survive the execution and delivery of this Agreement and the Closing hereunder
notwithstanding any investigation, analysis or evaluation by COMPS or its
designees of the Assets and Properties, its business, operations or condition
(financial or otherwise) of the Company and thereafter the representations and
warranties of the Stockholder and the Company shall continue to survive in full
force and effect for a period of two (2) calendar years after the Closing Date.

                                     -23-
<PAGE>

          5.2  Indemnification.
               ---------------

               (a)  By the Stockholder. The Stockholder shall indemnify, defend
                    ------------------
and hold harmless COMPS, and its officers, directors, employees, agents,
successors and assigns (collectively the "COMPS Group") from and against any and
all costs, losses (including, without limitation, diminution in value),
Liabilities, damages, lawsuits, deficiencies, claims and expenses, including
without limitation, interest, penalties, costs of mitigation, lost profits and
other losses resulting from any shutdown or curtailment of operations,
attorneys' fees and all amounts paid in investigation, defense or settlement of
any of the foregoing (collectively, the "Damages"), incurred in connection with,
arising out of, resulting from or incident to (i) any breach of any covenant,
representation, warranty or agreement or the inaccuracy of any representation,
made by the Company or the Stockholder in or pursuant to this Agreement, or in
the other documents delivered in connection with the transactions contemplated
in this Agreement; (ii) any breach of any covenant, representation, warranty or
agreement realting to the Business or CBN or the inaccuracy of any
representation relating to the Business or CBN made by ARA-D/FW or its
stockholders in or pursuant to that certain Stock Purchase Agreement by and
among COMPS, ARA-D/FW and its stockholder dated August 27, 1999 (the "ARA-D/FW
Agreement"), or in the other documents delivered in connection with the
transactions contemplated in the ARA-D/FW Agreement to the extent such other
documents relate to the Business or CBN, and (iii) Actions or Proceedings set
forth in the Disclosure Schedule or in the other documents delivered in
connection with the transactions contemplated in this Agreement.

               (b)  By COMPS. COMPS shall indemnify, reimburse, defend and hold
                    --------
harmless the Stockholder and its officers, employees, agents, successors and
assigns from and against any and all Damages incurred in connection with,
arising out of, resulting from or incident to any breach of any covenant,
representation, warranty or agreement or the inaccuracy of any representation,
made by COMPS in or pursuant to this Agreement.

               (c)  Defense of Claims. If any Action or Proceeding is filed or
                    -----------------
initiated against any party entitled to the benefit of indemnity hereunder,
written notice thereof shall be given to the indemnifying party as promptly as
practicable (and in any event within ten (10) days after the service of the
citation or summons); provided, however, that the failure of any indemnified
                      --------  -------
party to give timely notice shall not affect rights to indemnification hereunder
except to the extent that the indemnifying party demonstrates actual damage
caused by such failure. After such notice, if the indemnifying party shall
acknowledge in writing to the indemnified party that the indemnifying party
shall be obligated under the terms of its indemnity hereunder in connection with
such Action or Proceeding, then the indemnifying party shall be entitled, if it
so elects, to take control of the defense and investigation of such Action or
Proceeding and to employ and engage attorneys of its own choice to handle and
defend the same, such attorneys to be reasonably satisfactory to the indemnified
party, at the indemnifying party's cost, risk and expense (unless (i) the
indemnifying party has failed to assume the defense of such Action or Proceeding
or (ii) the named parties to such Action or Proceeding include both of the
indemnifying party and the indemnified party, and the indemnified party and its
counsel determine in good faith that there may be one or more legal defenses
available to such indemnified party that are different from or additional to
those available to the indemnifying party and that joint representation would be
inappropriate), and to compromise or settle such Action or Proceeding, which
compromise or settlement shall be made only with the written

                                     -24-
<PAGE>

consent of the indemnified party, such consent not to be unreasonably withheld.
The indemnified party may withhold such consent if such compromise or settlement
would adversely affect the conduct of business or requires less than an
unconditional release to be obtained. If (i) the indemnifying party fails to
assume the defense of such Action or Proceeding within fifteen (15) days after
receipt of notice thereof pursuant to this Section 5.2, or (ii) the named
                                           -----------
parties to such Action or Proceeding include both the indemnifying party and the
indemnified party and the indemnified party and its counsel determine in good
faith that there may be one or more legal defenses available to such indemnified
party that are different from or additional to those available to the
indemnifying party and that joint representation would be inappropriate, the
indemnified party against which such Action or Proceeding has been filed or
initiated will (upon delivering notice to such effect to the indemnifying party)
have the right to undertake, at the indemnifying party's cost and expense, the
defense, compromise or settlement of such Action or Proceeding on behalf of and
for the account and risk of the indemnifying party; provided, however, that such
                                                    --------  -------
Action or Proceeding shall not be compromised or settled without the written
consent of the indemnifying party, which consent shall not be unreasonably
withheld. In the event the indemnified party assumes defense of the Action or
Proceeding, the indemnified party will keep the indemnifying party reasonably
informed of the progress of any such defense, compromise or settlement and will
consult with, when appropriate, and consider any reasonable advice from, the
indemnifying party of any such defense, compromise or settlement. The
indemnifying party shall be liable for any settlement of any action effected
pursuant to and in accordance with this Section 5.2 and for any final judgment
                                        -----------
(subject to any right of appeal), and the indemnifying party agrees to indemnify
and hold harmless the indemnified party from and against any Damages by reason
of such settlement or judgment.

               Regardless of whether the indemnifying party or the indemnified
party takes up the defense, the indemnifying party will pay reasonable costs and
expenses in connection with the defense, compromise or settlement for any Action
or Proceeding under this Section 5.2.
                         -----------

          The indemnified party shall cooperate in all reasonable respects with
the indemnifying party and such attorneys in the investigation, trial and
defense of such Action or Proceeding and any appeal arising therefrom; provided,
                                                                       --------
however, that the indemnified party may, at its own cost, participate in the
- -------
investigation, trial and defense of such Action or Proceeding and any appeal
arising therefrom. The indemnifying party shall pay all expenses due under this
Section 5.2 as such expenses become due. In the event such expenses are not so
- -----------
paid, the indemnified party shall be entitled to settle any Action or Proceeding
under this Section 5.2 without the consent of the indemnifying party and without
           -----------
waiving any rights the indemnified party may have against the indemnifying
party.

               (d)  Other Claims. A claim for indemnification for any matter not
                    ------------
involving a third-party claim may be asserted by notice to the party from whom
indemnification is sought.

               (e)  Tax Indemnification.
                    -------------------

                    (i)  Notwithstanding anything in this Agreement to the
contrary, the Stockholder indemnify, reimburse, defend and hold harmless all
members of the

                                     -25-
<PAGE>

COMPS Group for, from and against all Damages arising in respect of any "Pre-
Closing Period" (as defined below) asserted against or incurred by members of
the COMPS Group resulting from a breach of the representations or warranties set
forth in Section 3.26 herein, including without limitation the Disclosure
         ------------
Schedule referred to therein and relating to such Section ("Tax Losses").

                    (ii)  "Pre-Closing Period" means any taxable period ending
on or before the Closing Date, and the portion of any taxable period beginning
on or before but ending after the Closing Date which portion begins on the first
day of such a taxable period and ends on the Closing Date.

          Notwithstanding anything in this Agreement to the contrary, COMPS
shall have the right, for the period covered by Section 3.26 hereof, to control
                                                ------------
any audit or determination by any taxing authority, initiate any claim for
refund or amended return, contest, defend against, resolve, and settle any
assessment, notice of deficiency or other adjustment or proposed adjustment of
Taxes or otherwise resolve any issue pertaining to any Tax Losses. The
Stockholder shall have the right to receive in a timely manner copies of all
non-privileged correspondence, records and relevant documentation and to be
timely informed of and to attend all meetings with third parties relating to any
claimed Tax Losses.

               (f)  Limitation on Indemnification.
                    -----------------------------

                    (i)   The Stockholder shall have no liability to any member
of the COMPS Group, and COMPS shall have no liability to the Stockholder, for
amounts payable pursuant to their respective indemnification obligations in this
Section 5.2 until the total of all Damages incurred by the indemnified party (i)
- -----------
exceeds Ten Thousand Dollars ($10,000) with respect to Section 3.38 only and
                                                       ------------
(ii) exceeds Twenty-Five Thousand Dollars ($25,000) in the aggregate for all
other Damages (collectively the "Threshold Amount"), and then indemnification by
the indemnifying party shall apply to all such Damages including the Threshold
Amount;

                    (ii)  The Stockholder shall have no liability to any member
of the COMPS Group, and COMPS shall have no liability to the Stockholder,
pursuant to their respective indemnification obligations in this Section 5.2 to
                                                                 -----------
the extent that the total of all Damages paid by the indemnifying party pursuant
to such indemnification obligations exceeds Three Hundred Fourteen Thousand
Eight Hundred Seventy-Four Dollars ($314,874) in the aggregate.

                    (iii) The limitation on COMPS' indemnification obligation in
this Section 5.2(f) shall not apply to any fraud or intentional breach by COMPS
     --------------
of any representation, warranty, covenant or agreement or obligation of COMPS.
The limitation on the Stockholder's indemnification obligation in this Section
                                                                       -------
5.2(f) shall not apply to (i) any fraud or intentional breach by the Stockholder
- ------
or the Company of any representation, warranty, covenant or agreement or
obligation of the Stockholder of the Company, (ii) any breach of the
representations and warranties by the Stockholder or the Company in Sections
                                                                    --------
3.2, 3.3, 3.26, 3.37 and 3.40 and (iii) any discrepancies in the calculation of
- --------------------     ----
the account receivables stated in the Interim Financial Statements and the
account receivables stated in the Financial Statements. The limitation on the
Stockholder's indemnification obligation in Section 5.2(f)(ii) shall not
                                            ------------------

                                     -26-
<PAGE>

apply to any breach of the representations and warranties by the Stockholder or
the Company in Section 3.38.
               ------------

          5.3  Offset.
               ------

               (a)  In addition to any other rights and remedies available to
COMPS herein, COMPS shall have the right during the twenty-four (24) month
period immediately following the Closing to offset any amounts to which it may
be entitled under Section 5.2 above against amounts otherwise payable under the
                  -----------
Promissory Note (the "Offset Amount"). If COMPS elects to offset any Offset
Amount against the Promissory Note, COMPS shall promptly notify the Stockholder
in writing (the "Offset Notice") by certified mail (return receipt requested) or
by a nationally recognized overnight courier service (e.g., Federal Express) of
the amount, nature and basis of the offset. In the event the Stockholder dispute
COMPS' offset, the Stockholder shall notify COMPS of dispute in writing (the
"Dispute Notice") by certified mail (return receipt requested) or a nationally
recognized overnight courier service within ten (10) days of COMPS' mailing of
the Offset Notice. If no Dispute Notice is given within such ten (10) day
period, COMPS' offset described in the Offset Notice shall be deemed agreed
between the parties and the Offset Amount offset against the Promissory Note
shall be subtracted from the outstanding principal balance of the Promissory
Note at such time. In the event a Dispute Notice is timely delivered to COMPS,
COMPS and the Stockholder shall first use their best efforts to resolve such
disputes among themselves within ten (10) days following COMPS' receipt of the
Dispute Notice. If COMPS and the Stockholder are unable to resolve the dispute
within such ten (10) day period, COMPS and the Stockholder agree to settle the
dispute by binding arbitration, in accordance with Section 6.10 below In the
event of a dispute, the amount of the Offset Amount to be offset against the
Promissory Note and all interests accrued thereon shall not be released to the
Stockholder pursuant to Section 2.2(b) hereof (and the terms of the Promissory
                        --------------
Note), but shall be held by COMPS until such dispute is resolved.

               (b)  The exercise of an offset by COMPS pursuant to Section
                                                                   -------
5.3(a) above, whether or not ultimately determined to be justified, will not
- ------
constitute an event of default under the Promissory Note or any instrument
securing the Promissory Note. Neither the exercise of nor the failure to
exercise such right of offset will constitute an election of remedies or limit
COMPS in any manner in the enforcement of any other remedies that may be
available to it.

          5.4  Further Assurances. In case at any time after the Closing any
               ------------------
further action is necessary or desirable to carry out the purposes of this
Agreement, each of the parties will take such further action (including the
execution and delivery of such further instruments and documents) as the other
party reasonably may request, all the sole cost and expense of the requesting
party (unless the requesting party is entitled to indemnification therefor under
this Article 5).
     ---------

          5.5  Restricted Securities.
               ---------------------

               (a)  Transfer of this Note or Securities on Conversion Thereof.
                    ---------------------------------------------------------
With respect to any proposed offer, sale, assignment or other disposition of the
Promissory Note or securities into which the Promissory Note may be converted,
the Stockholder will provide (i) written notice to COMPS prior thereto,
describing briefly the proposed offer, sale or other

                                     -27-
<PAGE>

disposition, (ii) a written opinion of the Stockholder's counsel, reasonably
satisfactory to COMPS and accompanied by such supporting documents as COMPS may
reasonably request, to the effect that such offer, sale or other distribution
may be effected without registration or qualification (under any federal or
state law then in effect) and (iii) the party acquiring the Promissory Note has
agreed in writing for the benefit of COMPS to be bound by the terms of the
Promissory Note. Promptly upon receiving the foregoing, COMPS as promptly as
practicable, shall notify the Stockholder whether the Stockholder may sell or
otherwise dispose of this Promissory Note or such securities, all in accordance
with the terms of the notice delivered to COMPS. If a determination has been
made pursuant to this Section 5.5 that the opinion of counsel for the
                      -----------
Stockholder is not reasonably satisfactory to COMPS or the party acquiring the
Promissory Note has not agreed to be bound by the terms of the Promissory Note,
COMPS shall so notify the Stockholder promptly after such determination has been
made. The Promissory Note thus transferred and each certificate representing the
securities thus transferred shall bear the legends set forth in below. COMPS
shall be entitled to issue stop transfer instructions to its transfer agent in
connection with such restrictions.

               (b)  No Stockholder Rights. Nothing contained in this Agreement
                    ---------------------
or the Promissory Note shall be construed as conferring upon the Stockholder or
any other person the right to vote or to consent or to receive notice as a
stockholder in respect of meetings of stockholders for the election of directors
of COMPS or any other matters or any rights whatsoever as a stockholder of
COMPS; and no dividends or interest shall be payable or accrued in respect of
the Promissory Note or the interest represented hereby or the Common Stock into
which the Promissory Note is convertible until, and only to the extent that, the
Promissory Note shall have been converted.

               (c)  Legends. The Stockholder understands that the Promissory
                    -------
Note and the certificates evidencing the Securities issuable under the
Promissory Note may bear one or all of the following legends:

                    (i)  NEITHER THIS CONVERTIBLE SUBORDINATED PROMISSORY NOTE
NOR ANY OF THE SECURITIES ISSUABLE HEREUNDER HAS BEEN REGISTERED UNDER THE
SECURITIES ACT OF 1933, AS AMENDED (THE "ACT"), AND MAY NOT BE OFFERED, SOLD OR
OTHERWISE TRANSFERRED, PLEDGED OR HYPOTHECATED IN THE ABSENCE OF A REGISTRATION
STATEMENT IN EFFECT WITH RESPECT TO THE SECURITIES, OR DELIVERY TO THE COMPANY
OF AN OPINION OF COUNSEL IN FORM AND SUBSTANCE SATISFACTORY TO THE COMPANY THAT
SUCH OFFER, SALE OR TRANSFER, PLEDGE OR HYPOTHECATION IS IN COMPLIANCE WITH THE
ACT OR UNLESS SOLD IN FULL COMPLIANCE WITH RULE 144 UNDER THE ACT.

                    (ii) THE SECURITIES REPRESENTED BY THIS CERTIFICATE ARE
SUBJECT TO A LOCK-UP PERIOD OF UP TO 180 DAYS FOLLOWING THE EFFECTIVE DATE OF A
REGISTRATION STATEMENT OF THE COMPANY FILED UNDER THE SECURITIES ACT OF 1933, AS
AMENDED, AS SET FORTH IN THE 7% CONVERTIBLE SUBORDINATED PROMISSORY NOTE BETWEEN
THE COMPANY AND THE ORIGINAL HOLDER OF THE SECURITIES, A COPY OF

                                     -28-
<PAGE>

WHICH MAY BE OBTAINED AT THE PRINCIPAL OFFICE OF THE COMPANY. SUCH LOCK-UP
PERIOD IS BINDING ON TRANSFEREES OF THESE SECURITIES.

                    (iii)  Any legend required by the laws of the State of
California, including any legend required by the California Department of
Corporations and Sections 417 and 418 of the Code.

               (d)  California Commissioner of Corporations.  THE SALE OF THE
                    ---------------------------------------
SECURITIES WHICH ARE THE SUBJECT OF THIS AGREEMENT AND THE PROMISSORY NOTE HAS
NOT BEEN QUALIFIED WITH THE COMMISSIONER OF CORPORATIONS OF THE STATE OF
CALIFORNIA AND THE ISSUANCE OF SUCH SECURITIES OR THE PAYMENT OR RECEIPT OF ANY
PART OF THE CONSIDERATION FOR SUCH SECURITIES PRIOR TO SUCH QUALIFICATION IS
UNLAWFUL, UNLESS THE SALE OF SECURITIES IS EXEMPT FROM QUALIFICATION BY SECTION
25100, 25102 OR 25105 OF THE CALIFORNIA CORPORATIONS CODE. THE RIGHTS OF ALL
PARTIES TO THIS AGREEMENT AND THE PROMISSORY NOTE ARE EXPRESSLY CONDITIONED UPON
SUCH QUALIFICATION BEING OBTAINED, UNLESS THE SALE IS SO EXEMPT.

               (e)  Market Stand-Off Agreement. During the period of duration
                    --------------------------
(not to exceed 180 days) specified by COMPS and an underwriter of Common Stock
or other securities of COMPS, following the effective date of any registration
statement of COMPS filed under the Act, the Stockholder shall not, to the extent
requested by COMPS and such underwriter, directly or indirectly sell, offer to
sell, contract to sell (including, without limitation, any short sale), grant
any option to purchase or otherwise transfer or dispose of (other than to
transferees or donees who agree to be similarly bound) any securities of COMPS
held by it at any time during such period except Common Stock included in such
registration. In order to enforce the foregoing covenant, COMPS may impose stop-
transfer instructions with respect to the Common Stock of the Stockholder (and
the shares or securities of every other person subject to the foregoing
restriction) until the end of such period.


                                  ARTICLE VI
                                 MISCELLANEOUS
                                 -------------

          6.1  Notices.  All notices, requests and other communications
               -------
hereunder must be in writing and will be deemed to have been duly given only if
delivered personally against written receipt or by facsimile transmission with
answer back confirmation or mailed (postage prepaid by certified or registered
mail, return receipt requested) or by overnight courier to the parties at the
following addresses or facsimile numbers:

          If to Stockholder, to:

               Elliott P. Flick
               3409 Hillview
               Austin, Texas 78703
               Facsimile No:  (512) 327-6568

                                     -29-
<PAGE>

          If to COMPS, to:

               COMPS.COM, INC.
               9888 Carroll Centre Road, Suite 100
               San Diego, CA  92126-4580
               Facsimile No:  (619) 684-3292
               Attention:  Christopher A. Crane

          with copies to:

               Brobeck, Phleger & Harrison LLP
               550 West "C" Street
               Suite 1300
               San Diego, CA  92101
               Facsimile No.:  (619) 234-3848
               Attention:  Craig S. Andrews, Esq.

All such notices, requests and other communications will (i) if delivered
personally to the address as provided in this Section 6.1, be deemed given upon
                                              -----------
delivery, (ii) if delivered by facsimile transmission to the facsimile number as
provided in this Section 6.1, be deemed given upon receipt, and (iii) if
                 -----------
delivered by mail in the manner described above to the address as provided in
this Section 6.1, be deemed given upon receipt (in each case regardless of
     -----------
whether such notice, request or other communication is received by any other
Person to whom a copy of such notice, request or other communication is to be
delivered pursuant to this Section).  Any party from time to time may change its
address, facsimile number or other information for the purpose of notices to
that party by giving notice specifying such change to the other parties hereto.

          6.2  Entire Agreement. This Agreement (and all Exhibits and Schedules
               ----------------
attached hereto, all other documents delivered in connection herewith)
supersedes all prior discussions and agreements among the parties with respect
to the subject matter hereof and contains the sole and entire agreement among
the parties hereto with respect thereto.

          6.3  Waiver. Any term or condition of this Agreement may be waived at
               ------
any time by the party that is entitled to the benefit thereof, but no such
waiver shall be effective unless set forth in a written instrument duly executed
by or on behalf of the party waiving such term or condition. No waiver by any
party hereto of any term or condition of this Agreement, in any one or more
instances, shall be deemed to be or construed as a waiver of the same or any
other term or condition of this Agreement on any future occasion. All remedies,
either under this Agreement or by law or otherwise afforded, will be cumulative
and not alternative.

          6.4  Amendment. This Agreement may be amended, supplemented or
               ---------
modified only by a written instrument duly executed by or on behalf of each
party hereto.

          6.5  No Third Party Beneficiary. The terms and provisions of this
               --------------------------
Agreement are intended solely for the benefit of each party hereto and their
respective successors or permitted assigns, and it is not the intention of the
parties to confer third-party beneficiary rights upon any other Person other
than any Person entitled to indemnity under Section 5.2.
                                            -----------

                                     -30-
<PAGE>

          6.6  No Assignment; Binding Effect. Neither this Agreement nor any
               -----------------------------
right, interest or obligation hereunder may be assigned by the Stockholder
without COMPS prior written consent and any attempt to do so will be void. COMPS
may assign any right, interest or obligation hereunder to any affiliate or
subsidiary, without COMPS consent, upon five (5) days notice thereof as provided
in Section 6.1. This Agreement is binding upon, inures to the benefit of and is
   -----------
enforceable by the parties hereto and their respective permitted successors and
assigns.

          6.7  Headings. The headings used in this Agreement have been inserted
               --------
for convenience of reference only and do not define or limit the provisions
hereof.

          6.8  Severability. If any provision of this Agreement is held to be
               ------------
illegal, invalid or unenforceable under any present or future law, and if the
rights or obligations of any party hereto under this Agreement will not be
materially and adversely affected thereby, (i) such provision will be fully
severable, (ii) this Agreement will be construed and enforced as if such
illegal, invalid or unenforceable provision had never comprised a part hereof,
(iii) the remaining provisions of this Agreement will remain in full force and
effect and will not be affected by the illegal, invalid or unenforceable
provision or by its severance herefrom and (iv) in lieu of such illegal, invalid
or unenforceable provision, there will be added automatically as a part of this
Agreement a legal, valid and enforceable provision as similar in terms to such
illegal, invalid or unenforceable provision as may be possible and mutually
acceptable to the parties herein.

          6.9  Governing Law. This Agreement shall be governed by and construed
               -------------
in accordance with the laws of the State of Texas applicable to contracts
executed and performed in such State, without giving effect to conflicts of laws
principles.

          6.10  Arbitration and Venue. Any controversy or claim arising out of
                ---------------------
or relating to this Agreement or the making, performance or interpretation
thereof shall be submitted to arbitration in San Diego, pursuant to the rules
and procedures of the American Arbitration Association before a panel of three
arbitrators. The ruling of the arbitrator shall be final, and judgment thereon
may be entered in any court having jurisdiction. If any question is submitted to
a court of law for resolution, then the Superior Court of the County of San
Diego or the United States District Court having jurisdiction in the County of
San Diego shall be the exclusive court of competent jurisdiction for the
resolution of such question. Each party will bear one half of the cost of the
arbitration filing and hearing fees, and the cost of the arbitrator. Each party
will bear its own attorneys' fees, unless otherwise decided by the arbitrator.
The parties understand and agree that the arbitration shall be instead of any
civil litigation and that the arbitrator's decision shall be final and binding
to the fullest extent permitted by law and enforceable by any court having
jurisdiction thereof. Each party shall be entitled to pre-hearing discovery as
provided in California Code of Civil Procedure Section 1283.05

          6.11  Consent to Jurisdiction and Forum Selection. The parties hereto
                -------------------------------------------
agree that all actions or proceedings arising in connection with this Agreement
shall be initiated and tried exclusively in the State and Federal courts located
in the County of San Diego, State of California. The aforementioned choice of
venue is intended by the parties to be mandatory and not permissive in nature,
thereby precluding the possibility of litigation between the parties with
respect to or arising out of this Agreement in any jurisdiction other than that
specified in this Section 6.11. Each party hereby waives any right it may have
                  ------------
to assert the doctrine of forum non

                                     -31-
<PAGE>

conveniens or similar doctrine or to object to venue with respect to any
proceeding brought in accordance with this paragraph, and stipulates that the
State and Federal courts located in the County of San Diego, State of California
shall have in personam jurisdiction and venue over each of them for the purposes
of litigating any dispute, controversy or proceeding arising out of or related
to this Agreement. Each party hereby authorizes and accepts service of process
sufficient for personal jurisdiction in any action against it as contemplated by
this Section 6.11 by registered or certified mail, return receipt requested,
     ------------
postage prepaid, to its address for the giving of notices as set forth in this
Agreement, or in the manner set forth in Section 6.1 of this Agreement for the
                                         -----------
giving of notice. Any final judgment rendered against a party in any action or
proceeding shall be conclusive as to the subject of such final judgment and may
be enforced in other jurisdictions in any manner provided by law.

          6.12  Expense. Except as otherwise provided in this Agreement, the
                -------
Stockholder and COMPS shall pay their own expenses and costs incidental to the
preparation of this Agreement and to the consummation of the transactions
contemplated hereby.

          6.13  Construction. No provision of this Agreement shall be construed
                ------------
in favor of or against any party on the ground that such party or its counsel
drafted the provision. Any remedies provided for herein are not exclusive of any
other lawful remedies which may be available to either party. This Agreement
shall at all times be construed so as to carry out the purposes stated herein.

          6.14  Counterparts This Agreement may be executed in any number of
                ------------
counterparts and by facsimile, each of which will be deemed an original, but all
of which together will constitute one and the same instrument.

                          [SIGNATURE PAGES TO FOLLOW]

                                     -32-
<PAGE>

          IN WITNESS WHEREOF, this Agreement has been duly executed and
delivered by the parties hereto, or their duly authorized officer, as of the
date first above written.

                         COMPS.COM, INC.,
                         a Delaware corporation

                         By: /s/ CHRIS FENTON
                            -----------------------------------------

                         Name:  Chris Fenton
                              ---------------------------------------

                         Title:  Vice President
                               --------------------------------------

                         SENDERO INVESTMENTS, INC.,
                         a Texas corporation

                         By: /s/ ELLIOT P. FLICK
                            -----------------------------------------

                         Name:  Elliot P. Flick
                              ---------------------------------------

                         Title: President
                               --------------------------------------


                         STOCKHOLDER:

                         /s/ ELLIOT P. FLICK
                         --------------------------------------------
                         Elliott P. Flick





               [Signature Page to the Stock Purchase Agreement]

<PAGE>

                                                                     EXHIBIT 2.2

- --------------------------------------------------------------------------------


                           STOCK PURCHASE AGREEMENT

                                 by and among

                               COMPS.COM, INC.,

                                PARRAMORE, INC.

                                      and

                               ELLIOTT P. FLICK

                             dated August 27, 1999


- --------------------------------------------------------------------------------
<PAGE>

                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                       Page
<S>                                                                    <C>
ARTICLE I DEFINITIONS................................................     1

     1.1   Defined Terms.............................................     1
     1.2   Construction of Certain Terms and Phrases.................     6

ARTICLE II PURCHASE AND SALE OF STOCK................................     6

     2.1   Sale of Company Stock by the Stockholder..................     6
     2.2   Purchase of Company Stock by COMPS........................     6
     2.3   Purchase Price Allocation.................................     7
     2.4   Closing...................................................     7
     2.5   Private Placement.........................................     9

ARTICLE III REPRESENTATIONS AND WARRANTIES OF STOCKHOLDER
AND THE COMPANY......................................................     9

     3.1   Organization of the Company...............................     9
     3.2   Capital Stock of the Company..............................     9
     3.3   Ownership of Shares.......................................    10
     3.4   Authority of the Stockholder..............................    10
     3.5   Authority of the Company..................................    10
     3.6   No Affiliates.............................................    10
     3.7   No Conflicts..............................................    10
     3.8   Consents and Governmental Approvals and Filings...........    11
     3.9   Books and Records.........................................    11
     3.10  Financial Statements......................................    11
     3.11  Absence of Changes........................................    11
     3.12  No Undisclosed Liabilities................................    11
     3.13  Tangible Personal Property................................    12
     3.14  Benefit Plans; ERISA......................................    12
     3.15  Real Property.............................................    13
     3.16  Intellectual Property Rights..............................    13
     3.17  Proprietary Information of Third Parties..................    14
     3.18  Litigation................................................    14
     3.19  Compliance with Law.......................................    14
     3.20  Contracts.................................................    15
     3.21  Environmental and Occupational Health Matters.............    16
     3.22  Assignment of Company Revenue.............................    16
     3.23  Accounts Receivable.......................................    16
     3.24  Plants, Buildings, Structures, Facilities and Equipment...    16
     3.25  Insurance.................................................    17
     3.26  Tax Matters...............................................    17
     3.27  Labor and Employment Relations............................    18
</TABLE>

                                      -i-
<PAGE>

<TABLE>
     <S>                                                               <C>
     3.28  Certain Employees.........................................  19
     3.29  Absence of Certain Developments...........................  19
     3.30  Customers.................................................  20
     3.31  Necessary Property........................................  21
     3.32  Bank Accounts.............................................  21
     3.33  Permits...................................................  21
     3.34  Third Party Consents......................................  21
     3.35  Investment Representations................................  21
     3.36  Brokers...................................................  22
     3.37  Net Assets................................................  22
     3.38  Operating Profit..........................................  22
     3.39  Year 2000 Compliance......................................  23
     3.40  Absence of Liabilities to Lenders and Lienholders.........  23
     3.41  Material Misstatements and Omissions......................  23

ARTICLE IV REPRESENTATIONS AND WARRANTIES OF COMPS...................  23

     4.1   Organization of COMPS.....................................  23
     4.2   Authority of COMPS........................................  24
     4.3   COMPS SEC Filings.........................................  24

ARTICLE V ACTIONS BY THE PARTIES AFTER THE CLOSING...................  24

     5.1   Survival of Representations, Warranties, Etc..............  24
     5.2   Indemnification...........................................  24
     5.3   Offset....................................................  27
     5.4   Further Assurances........................................  28
     5.5   Restricted Securities.....................................  28

ARTICLE VI MISCELLANEOUS.............................................  30

     6.1   Notices...................................................  30
     6.2   Entire Agreement..........................................  31
     6.3   Waiver....................................................  31
     6.4   Amendment.................................................  31
     6.5   No Third Party Beneficiary................................  31
     6.6   No Assignment; Binding Effect.............................  31
     6.7   Headings..................................................  32
     6.8   Severability..............................................  32
     6.9   Governing Law.............................................  32
     6.10  Arbitration and Venue.....................................  32
     6.11  Consent to Jurisdiction and Forum Selection...............  32
     6.12  Expense...................................................  33
     6.13  Construction..............................................  33
     6.14  Counterparts..............................................  33
</TABLE>

                                     -ii-
<PAGE>

                            SCHEDULES AND EXHIBITS

Schedules
- ---------

Schedule 2.3 - Purchase Price Allocation
Disclosure Schedule

Exhibits
- --------

Exhibit A - Promissory Note
Exhibit B - Spousal Consent
Exhibit C - Non-Competition Agreement
Exhibit D - Company Officer and Stockholder Certificates
Exhibit E - Company Secretary Certificate
Exhibit F - Release
Exhibit G - Estoppel Certificate
Exhibit H - Independent Contractor Agreement
Exhibit I - COMPS Officer Certificate

                                      -i-
<PAGE>

                           STOCK PURCHASE AGREEMENT

          This Stock Purchase Agreement ("Agreement") is made and entered into
as of August 27, 1999, by and among COMPS.COM, INC., a Delaware corporation,
PARRAMORE, INC., a Texas corporation (the "Company"), and Elliott P. Flick, the
sole stockholder of the Company (the "Stockholder").

                                   RECITALS
                                   --------

          WHEREAS, the Company is in the business of publishing and selling the
Flick Report (the "Business");

          WHEREAS, the Stockholder own all of the issued and outstanding capital
stock of the Company, consisting of Fifty (50) shares of common stock, no par
value (the "Company Stock"); and

          WHEREAS, the Stockholder desires to sell the Company Stock to COMPS,
and COMPS desires to purchase the Company Stock from the Stockholder, on the
terms and conditions and for the consideration set forth herein.

          NOW, THEREFORE, in consideration of the premises and the mutual
covenants and promises contained herein, and for other good and valuable
consideration, the receipt and sufficiency of which are hereby acknowledged, the
parties hereto agree as follows:

                                   ARTICLE I
                                  DEFINITIONS
                                  -----------

          1.1  Defined Terms. As used in this Agreement, the following defined
               -------------
terms have the meanings indicated below:

          "Actions or Proceedings" means any action, suit, proceeding,
arbitration, Order (as defined below), inquiry, hearing, assessment with respect
to fines or penalties or litigation (whether civil, criminal, administrative,
investigative or informal) commenced, brought, conducted or heard by or before,
or otherwise involving, any Governmental or Regulatory Authority (as defined
below).

          "Affiliate" means, with respect to any Person, another Person that
directly, or indirectly through one or more intermediaries, controls, is
controlled by or is under common control with such Person.

          "Assets and Properties" and "Assets or Properties" of any Person each
means all assets and properties of every kind, nature, character and description
(whether real, personal or mixed, whether tangible or intangible, whether
absolute, accrued, contingent, fixed or otherwise and wherever situated),
including the goodwill related thereto, operated, owned or leased by such
Person, including, without limitation, cash, cash equivalents, accounts and
notes
<PAGE>

receivable, chattel paper, documents, instruments, general intangibles, real
estate, equipment, inventory, goods and Intellectual Property.

          "Benefit Plan" means any Plan established, arranged or maintained by
the Company or any corporate group of which the Company is or was a member,
existing at the Closing Date or prior thereto, to which the Company contributes
or has contributed, or under which any employee, officer, director or former
employee, officer or director of the Company or any beneficiary thereof is
covered, is eligible for coverage or has benefit rights.

          "Books and Records" of any Person means all files, documents,
instruments, papers, books, computer files (including but not limited to files
stored on a computer's hard drive or on floppy disks), electronic files and
records in any other medium relating to the business, operations or condition of
such Person.

          "Business" has the meaning set forth in the first recital.

          "Business Day" means a day other than Saturday, Sunday or any day on
which banks located in the State of California are authorized or obligated to
close.

          "Cash Purchase Price" has the meaning set forth in Section 2.2(a).
                                                             --------------

          "Closing" has the meaning set forth in Section 2.4(a).
                                                 --------------

          "Closing Date" has the meaning set forth in Section 2.4(a).
                                                      --------------

          "Code" means the Internal Revenue Code of 1986, as amended.

          "Company" has the meaning set forth in the first paragraph of this
Agreement.

          "Company Intellectual Property" means any Intellectual Property
relating to the Company and its business that is owned or exclusively licensed
to the Company.

          "Company Stock" has the meaning set forth in the first recital of this
Agreement.

          "COMPS" has the meaning set forth in the first paragraph of this
Agreement.

          "COMPS Common Stock" means the shares of COMPS common stock, $0.01 par
value.

          "COMPS Group" has the meaning set forth in Section 5.2(a).
                                                     --------------

          "COMPS SEC Filings" has the meaning set forth in Section 4.3.
                                                           -----------

          "COMPS Securities" has the meaning set forth in Section 2.5.
                                                          -----------

          "Defined Benefit Plan" means each Benefit Plan which is subject to
Part 3 of Title I of ERISA, Section 412 of the Code or Title IV of ERISA.

                                      -2-
<PAGE>

          "Disclosure Schedule" means the disclosure schedule attached hereto
which sets forth the exceptions to the representations and warranties contained
in Article 3 hereof and certain other information called for by this Agreement.
   ---------

          "Encumbrances" means any mortgage, pledge, assessment, security
interest, deed of trust, lease, lien, adverse claim, levy, charge or other
encumbrance of any kind, or any conditional sale or title retention agreement or
other agreement to give any of the foregoing in the future.

          "Environmental and Occupational Laws" has the meaning set forth in
Section 3.21.
- ------------

          "ERISA" means the Employee Retirement Income Security Act of 1974, as
amended, and the rules and regulations promulgated thereunder.

          "ERISA Affiliate" means any entity which is a member of a "controlled
group of corporations" or which is or was under "common control" with the
Company as defined in Section 414 of the Code.

          "Estoppel Certificate" has the meaning set forth in Section
                                                              -------
2.4(b)(vii).
- -----------

          "Exchange Act" means the Securities Exchange Act of 1934, as amended.

          "Financial Statements" means (i) the audited balance sheet of the
Company and the related audited statement of income and retained earnings for
the fiscal years ended December 31, 1997 and December 31, 1998, together with
the notes thereto and the related report of Spranse & Winn LLP or Calhoun & Co.
and (ii) the Interim Financial Statements for the Company.

          "Flick Report" means the bi-monthly regional (Central Texas)
commercial real estate trade journal (consisting of research, news of industry-
related people and companies, leasing and sales accomplishments and articles)
and the resource for the paid marketing of company and vendor listings and
display advertisements, as well as lisitngs and display advertisement of real
estate properties, both for lease and for sale.

          "GAAP" means generally accepted accounting principles, applied in a
manner consistent with the past practices of the Company.

          "Governmental or Regulatory Authority" means any court, tribunal,
arbitrator, authority, agency, commission, official or other instrumentality of
the United States or other country, any state, county, city or other political
subdivision.

          "Intellectual Property" means (i) inventions (whether patentable or
unpatentable and whether or not reduced to practice), all improvements thereto,
and all patents, patent applications and patent disclosures, together with all
reissuances, continuations, continuations-in-part, revisions, extensions and
reexaminations thereof; (ii) trademarks, service marks, trade dress, logos,
trade names and corporate names, together with all translations, adaptations,
derivations and combinations thereof and including all goodwill associated
therewith, and all

                                      -3-
<PAGE>

applications, registrations and renewals in connection therewith, copyrightable
works, all copyrights and all applications, registrations and renewals in
connection therewith; (iii) mask works and all applications, registrations and
renewals in connection therewith; (iv) trade secrets and confidential business
information (including product specifications, data, know-how, formulae,
compositions, processes, designs, sketches, photographs, graphs, drawings,
samples, inventions and ideas, past, current research and development, current
research and distribution methodologies and processes, customer lists, current
and anticipated customer requirements, price lists, market studies, business
plans), however documented; (v) proprietary computer software and programs
(including object code and source code) and other proprietary rights and copies
and tangible embodiments thereof (in whatever form or medium); (vi) database
technologies, systems, structures and architectures (and related processes,
formulae, compositions, improvements, devices, know-how, inventions,
discoveries, concepts, ideas, designs, methods and information) and any other
related information, however, documented; (vii) any and all information
concerning the business and affairs of a Person (which includes historical
financial statements, financial projections and budgets, historical and
projected sales, capital spending budgets and plans, the names and backgrounds
of key personnel and personnel training and techniques and materials), however
documented; (viii) any and all notes, analysis, compilations, studies,
summaries, and other material prepared by or for a Person containing or based,
in whole or in part, on any information included in the foregoing, however
documented; (ix) all industrial designs and any registrations and applications
therefor; (x) all databases and data collections and all rights therein; and
(xi) any similar or equivalent rights to any of the foregoing anywhere in the
world.

          "Interim Financial Statements" means the unaudited balance sheet and
the related unaudited statement of income and retained earnings for the Company
for the six (6)-month period ended June 30, 1999.

          "Knowledge of the Stockholder and/or the Company" or "Known to the
Stockholder and/or the Company" means the knowledge of the Stockholder or any
officer or director of the Company, in each case after due inquiry and
comprehensive investigation.

          "Liabilities" means any liability (whether known or unknown, whether
asserted, or unasserted, whether absolute or contingent, whether accrued or
unaccrued, whether liquidated or unliquidated, and whether due or to become
due), including but not limited to any liability for Taxes (as defined below).

          "Material" has the meaning set forth in Section 3.21(e)(iv).
                                                  -------------------

          "Material Adverse Effect" means, for any Person, a material adverse
effect whether individually or in the aggregate (a) on the business, operations,
financial condition, Assets and Properties, Liabilities or prospects of such
Person, or (b) on the ability of such Person to consummate the transactions
contemplated hereby.

          "Non-Competition Agreements" has the meaning set forth in Section
                                                                    -------
2.4(b)(ii).
- ----------

          "Order" means any writ, judgment, decree, injunction or similar order
of any Governmental or Regulatory Authority (in each such case whether
preliminary or final).

                                      -4-
<PAGE>

          "Ordinary Course of Business" means the action of a Person that is
consistent with the past practices of such Person and is taken in the ordinary
course of the normal day-to-day operations of such Person.

          "Permits" means all licenses, permits, certificates of authority,
authorizations, approvals, registrations and similar consents granted or issued
by any Governmental or Regulatory Authority.

          "Permitted Encumbrance" means (a) any Encumbrance for taxes not yet
due or delinquent or being contested in good faith by appropriate proceedings
for which adequate reserves have been established in accordance with GAAP and
(b) any minor imperfection of title or similar Encumbrance which individually or
in the aggregate with other such Encumbrances does not impair the value of the
property subject to such Encumbrance or the use of such property in the conduct
of the business of the Company.

          "Person" means any natural person, corporation, general partnership,
limited partnership, limited liability company, proprietorship, other business
organization, trust, union, association or Governmental or Regulatory Authority.

          "Plan" means any bonus, incentive compensation, deferred compensation,
pension, profit sharing, retirement, stock purchase, stock option, stock
ownership, stock appreciation rights, phantom stock, leave of absence, layoff,
vacation, day or dependent care, legal services, cafeteria, life, health,
accident, disability, workers' compensation or other insurance, severance,
separation or other employee benefit plan, practice, policy or arrangement of
any kind, whether written or oral, including, but not limited to, any "employee
benefit plan" within the meaning of Section 3(3) of ERISA.

          "Pre-Closing Period" has the meaning set forth in Section 5.2(e)(ii).
                                                            ------------------

          "Promissory Note" has the meaning set forth in Section 2.2(b).
                                                         --------------

          "Purchase Price" has the meaning set forth in Section 2.2.
                                                        -----------

          "Real Property" has the meaning set forth in Section 3.15.
                                                       ------------

          "Release" has the meaning set forth in Section 2.4(b)(v).
                                                 -----------------

          "SEC" means the United States Securities and Exchange Commission, or
any successor entity.

          "Securities Act" means the Securities Act of 1933, as amended.

          "Stockholder" has the meaning set forth in the first paragraph of this
Agreement.

          "Qualified Plan" means each Benefit Plan which is intended to qualify
under Section 401 of the Code.

                                      -5-
<PAGE>

          "Tax" (and, with correlative meaning, "Taxes," "Taxable" and "Taxing")
means (i) any federal, state, local or foreign income, alternative or add-on
minimum tax, gross income, gross receipts, sales, use, ad valorem, transfer,
franchise, profits, license, withholding, payroll, employment, excise,
severance, stamp, occupation, premium, property, environmental or windfall
profit tax, custom, duty or other tax, governmental fee or other like assessment
or charge of any kind whatsoever, together with any interest or any penalty,
addition to tax or additional amount imposed by any Governmental or Regulatory
Authority responsible for the imposition of any such tax (domestic or foreign),
(ii) any Liability for payment of any amounts of the type described in (i) as a
result of being a member of an affiliated, consolidated, combined, unitary or
other group for any Taxable period and (iii) any Liability for the payment of
any amounts of the type described in (i) or (ii) as a result of any express or
implied obligation to indemnify any other person.

          "Tax Losses" has the meaning set forth in Section 5.2(e)(i).
                                                    -----------------

          "Tax Return" means any return, report, information return, schedule or
other document (including any related or supporting information) filed or
required to be filed with respect to any taxing authority with respect to Taxes.

          "Threshold Amount" has the meaning set forth in Section 5.2(f).
                                                          --------------

          1.2  Construction of Certain Terms and Phrases. Unless the context of
               -----------------------------------------
this Agreement otherwise requires, (a) words of any gender include each other
gender; (b) words using the singular or plural number also include the plural or
singular number, respectively; (c) the terms "hereof," "herein," "hereby" and
derivative or similar words refer to this entire Agreement; (d) the terms
"Article" or "Section" refer to the specified Article or Section of this
Agreement; (e) the term "or" has, except where otherwise indicated, the
inclusive meaning represented by the phrase "and/or"; and (f) "including" means
"including without limitation." Whenever this Agreement refers to a number of
days, such number shall refer to calendar days unless Business Days are
specified. All accounting terms used herein and not expressly defined herein
shall have the meanings given to them under GAAP.

                                  ARTICLE II
                          PURCHASE AND SALE OF STOCK
                          --------------------------

          2.1  Sale of Company Stock by the Stockholder. Subject to the terms
               ----------------------------------------
and conditions of this Agreement, the Stockholder agree to sell to COMPS all of
the shares of the Company Stock and to deliver the certificates evidencing the
Company Stock to COMPS at the Closing. The Stockholder shall sell to COMPS that
number of shares of Company Stock set forth on Schedule A. The certificates for
                                               ----------
such shares will be properly endorsed for transfer to or accompanied by duly
executed stock powers in favor of COMPS and otherwise in a form acceptable for
transfer on the books of the Company.

          2.2  Purchase of Company Stock by COMPS. Subject to the terms and
               ----------------------------------
conditions in this Agreement, COMPS agrees to acquire the Company Stock from the
Stockholder and to pay, or cause to be paid, to the Stockholder in exchange for
the Company

                                      -6-
<PAGE>

Stock an aggregate purchase price of Nine Hundred Eighty Thousand Five Hundred
Sixty Dollars ($980,560) (the "Purchase Price"), payable in the following
manner:

               (a)  At the Closing, COMPS shall pay to the Stockholder the
aggregate sum of Three Hundred Forty-Seven Thousand Three Hundred Sixteen
Dollars ($347,316) in cash (the "Cash Purchase Price").

               (b)  At the Closing, COMPS shall execute and deliver to the
Stockholder a subordinated convertible note (the "Promissory Note")
substantially in the form of Exhibit A attached hereto, in the aggregate amount
                             ---------
of Six Hundred Thirty-Three Thousand Two Hundred Forty-Four Dollars ($633,244)
(the "Note Purchase Price"), payable in monthly installments of interest only
commencing one (1) month after the Closing Date and continuing for forty-eight
(48) consecutive months thereafter, at which time the full balance of the
principal amount and interest, if any, will be due and payable. The final
maturity date of the Promissory Note shall be the last day of the forty-eighth
(48th) month after the Closing Date (the "Note Term"). The Promissory Note shall
bear interest at a rate of seven percent (7%) per annum. Subject to the terms
and conditions of the Promissory Note, in the event that (i) COMPS defaults
under the terms of the Promissory Note as a result of its failure to make timely
payments or (ii) COMPS' Net Worth is less than Ten Million Dollars ($10,000,000)
at any time during the Promissory Note Term, (a "Default Event"), the
outstanding balance of the principal and accrued interest due on the Promissory
Note may be convertible into the common stock of COMPS ("COMPS Common Stock")
during the period in which the Default Event has not been cured. The number of
shares of COMPS Common Stock issuable upon such conversion shall equal (i) the
outstanding balance of the principal and accrued interest of the Promissory Note
at the time of conversion, divided by (ii) the average of the closing prices of
a share of COMPS Common Stock on the Nasdaq National Market for thirty (30)
consecutive trading days ending on the trading day immediately preceding the day
of the Default Event prior to issuance of the stock.

          2.3  Purchase Price Allocation. The parties agree that COMPS, at its
               -------------------------
sole discretion, shall determine the allocation of the Purchase Price with
respect to the assets of the Company for all Tax purposes. The Stockholder, the
Company and COMPS, as applicable, shall file their respective Tax Returns in a
manner consistent with such allocation, which allocation is set forth on
Schedule 2.3. Schedule 2.3 shall be delivered by COMPS within thirty (30) days
- ------------  ------------
after the completion of its next audited Financial Statement.

          2.4  Closing.
               -------

               (a)  Time and Place. The consummation of the purchase and sale of
                    --------------
the Company Stock under this Agreement (the "Closing") shall take place at the
offices of Brobeck, Phleger & Harrison LLP, 550 West "C" Street, Suite 1200, San
Diego, California, at 10:00 a.m. on August 27, 1999, or at such time and in such
manner as the parties mutually agree (the "Closing Date").

               (b)  Closing Deliveries by the Company and the Stockholder. At
                    -----------------------------------------------------
the Closing, the Company and the Stockholder shall have delivered or caused to
be delivered to COMPS:

                                      -7-
<PAGE>

                    (i)    the original certificates representing all of the
issued and outstanding shares of Company Stock owned by the Stockholder, duly
endorsed in blank (or accompanied by duly executed stock powers) and, if
necessary, spousal consent by the spouse, if any, of the Stockholder,
substantially in the form of Exhibit B attached hereto, duly executed by the
                             ---------
spouse;


                    (ii)   Non-Competition Agreements by and between COMPS and
the Stockholder, substantially in the form of Exhibit C attached hereto (the
                                              ---------
"Non-Competition Agreement"), duly executed by the Stockholder.

                    (iii)  a certificate of an officer of the Company and of the
Stockholder, substantially in the form of Exhibit D attached hereto, duly
                                          ---------
executed by each of the Company and the Stockholder;

                    (iv)   a certificate of the Secretary of the Company
substantially in the form of Exhibit E attached hereto, certifying as of the
                             ---------
Closing Date (A) a true and complete copy of the organizational documents of the
Company certified as of a recent date by the Texas Secretary of State, (B) a
certificate of each Secretary of State certifying the account status and
existence of the Company in its state of incorporation and all states in which
it is qualified to do business, (C) a true and complete copy of the resolutions
of the board of directors of the Company and the resolutions of the Stockholder
of the Company, each authorizing the execution, delivery and performance of this
Agreement by the Company and the consummation of the transactions contemplated
hereby and (D) incumbency matters; and

                    (v)    a Release by the Stockholder, substantially in the
form of Exhibit F attached hereto (the "Release"), duly executed by the
        ---------
Stockholder;

                    (vi)   resignation letter of each of the officers,
registered agent and directors of the Company, dated effective as of the
Closing;

                    (vii)  an Estoppel Certificate by the landlord or landlords,
as the case may be, of the Real Property, substantially in the form of Exhibit G
                                                                       ---------
attached hereto, duly executed by such landlords;

                    (viii) Independent Contractor Agreements by and between
COMPS and each of Elliott Flick and Bruce Brooks, respectively, substantially in
the form of Exhibit G attached hereto (the "Independent Contractor Agreements"),
            ---------
duly executed by each of Elliott Flick and Bruce Brooks, respectively; and

                    (ix)   such other documents as COMPS may reasonably request
for the purpose of facilitating the consummation of the transactions
contemplated herein.

               (c)  Closing Deliveries By COMPS. At the Closing, COMPS shall
                    ---------------------------
have delivered or caused to be delivered:

                    (i)    the Cash Purchase Price to the Stockholder, allocated
among the Stockholder as set forth on Schedule 2.2, by wire transfer in
                                      ------------
immediately available funds to accounts designated, respectively, by the
Stockholder.

                                      -8-
<PAGE>

                    (ii)  the Promissory Note duly executed by COMPS;

                    (iii) the Non-Competition Agreement, duly executed by COMPS;

                    (iv)  the Consulting Agreements, duly executed by COMPS; and

                    (v)   a certificate of an officer of COMPS, substantially in
the form of Exhibit I attached hereto, duly executed by COMPS.
            ---------


          2.5  Private Placement. The Promissory Note and COMPS Common Stock
               -----------------
issuable under the Promissory Note (collectively, "COMPS Securities") will be
exempt from registration requirements of the Securities Act pursuant to the
private placement exemption provided by Rule 505 and/or 506 of Regulation D
promulgated under the Securities Act and/or Section 4(2) of the Securities Act
and applicable state securities laws. The Stockholder hereby agrees to take all
actions and execute all subscription and other documents to qualify issuance of
COMPS Securities for such exemptions.

                                  ARTICLE III
         REPRESENTATIONS AND WARRANTIES OF STOCKHOLDER AND THE COMPANY
         -------------------------------------------------------------

          The Company and the Stockholder, jointly and severally, represent and
warrant to COMPS as of the Closing, except as set forth on the Disclosure
Schedule furnished to COMPS specifically identifying the relevant section
hereof, which exceptions shall be deemed to be representations and warranties as
if made hereunder (provided that the disclosures in such exceptions shall be
true, complete and correct), as follows:

          3.1  Organization of the Company. The Company is a corporation duly
               ---------------------------
organized, validly existing, and in good standing under the laws of the State of
Texas. The Company is duly authorized to conduct business and is in good
standing in each jurisdiction where such qualification is required except for
any jurisdiction where failure so to qualify would not have a Material Adverse
Effect upon the Company. The Company has full power and authority, and holds all
Permits and authorizations necessary to carry on its business and to own and use
the Assets and Properties owned and used by the Company except where the failure
to have such power and authority or to hold such Permit or authorization would
not have a Material Adverse Effect on the Company's business. The Company has
delivered to COMPS correct and complete copies of its charter documents and
organizational documents, each as amended to date.

          3.2  Capital Stock of the Company. The authorized capital stock of the
               ----------------------------
Company consists of Ten Thousand (10,000) shares of common stock, no par value,
of which Fifty (50) shares are issued and outstanding as of the date hereof, and
no shares in treasury, and no shares of Preferred Stock. No shares of the
Company's capital stock have been issued since the end of the period covered by
the Interim Financial Statements. The Company Stock is duly authorized, validly
issued, fully paid and nonassessable. Except for this Agreement, there are no
outstanding subscriptions, options, warrants, calls, commitments or other rights
of any kind for

                                      -9-
<PAGE>

the purchase or acquisition of, nor any securities convertible or exchangeable
for, any capital stock of the Company.

          3.3  Ownership of Shares. The Stockholder owns beneficially and of
               -------------------
record all of the shares of Company Stock, free and clear of all Encumbrances,
and has good and valid title to such shares. The delivery of the stock
certificate(s) representing the Company Stock owned by the Stockholder in the
manner provided in Section 2.4(b)(i) will transfer to COMPS good and valid title
                   -----------------
thereto free and clear of all Encumbrances.

          3.4  Authority of the Stockholder. The Stockholder has the right,
               ----------------------------
power and authority to enter into this Agreement, to consummate the transactions
contemplated hereby and to perform his obligations hereunder, without obtaining
the approval or consent of any other Person. This Agreement has been duly and
validly executed and delivered by the Stockholder and constitutes a legal, valid
and binding obligation of the Stockholder enforceable against the Stockholder in
accordance with its terms except (i) as limited by applicable bankruptcy,
insolvency, reorganization, moratorium and other laws of general application
affecting enforcement of creditors' rights generally and (ii) as limited by laws
relating to the availability of specific performance, injunctive relief or other
equitable remedies.

          3.5  Authority of the Company. The Company has all necessary power and
               ------------------------
authority and has taken all action necessary to enter into this Agreement, to
consummate the transactions contemplated hereby and to perform its obligations
hereunder and no other proceedings on the part of the Company are necessary to
authorize this Agreement or to consummate the transactions contemplated hereby.
This Agreement has been duly and validly executed and delivered by the Company
and constitutes a legal, valid and binding obligation of the Company enforceable
against the Company in accordance with its terms except (i) as limited by
applicable bankruptcy, insolvency, reorganization, moratorium and other laws of
general application affecting enforcement of creditors' rights generally and
(ii) as limited by laws relating to the availability of specific performance,
injunctive relief or other equitable remedies.

          3.6  No Affiliates. The Company does not have any Affiliates and is
               -------------
not a partner in any partnership or a party to a joint venture.

          3.7  No Conflicts. The execution and delivery by the Stockholder and
               ------------
the Company of this Agreement does not, and the performance by the Stockholder
and the Company of their respective obligations under this Agreement and the
consummation of the transactions contemplated hereby will not:

               (a)  conflict with or result in a violation or breach of any of
the terms, conditions or provisions of the charter documents, bylaws or other
organizational documents of the Company;

               (b)  conflict with or result in a violation or breach of any term
or provision of any law, Order, Permit, statute, rule or regulation applicable
to the Stockholder or the Company or any of the businesses, Assets or Properties
of the Stockholder or the Company;

               (c)  result in a breach of, or default under (or give rise to
right of termination, cancellation or acceleration) under any of the terms,
conditions or provisions of any

                                     -10-
<PAGE>

note, bond, mortgage, indenture, license, agreement, lease or other similar
instrument or obligation to which the Company, any of its Assets and Properties
or the Company Stock may be bound; or

                (d)  result in an imposition or creation of any Encumbrance on
the business or Assets or Properties of the Company or the Company Stock.

          3.8   Consents and Governmental Approvals and Filings. Except as set
                -----------------------------------------------
forth in the Disclosure Schedule, no consent, approval or action of, filing with
or notice to any Governmental or Regulatory Authority or other Persons on the
part of the Stockholder or the Company is required in connection with the
execution, delivery and performance of this Agreement or the consummation of the
transactions contemplated hereby.

          3.9   Books and Records. The minute books and other corporate records
                -----------------
of the Company as made available to COMPS contain a true and complete record, in
all material respects, of all actions taken at all meetings and by all written
consents in lieu of meetings of the Stockholder, the boards of directors and
committees of the boards of directors of the Company. The stock transfer ledgers
and other similar records of the Company accurately reflect all issuances and
record transfers in the capital stock of the Company. The other Books and
Records of the Company are true, correct and complete.

          3.10  Financial Statements. The Company has previously delivered to
                --------------------
COMPS the Financial Statements for the period ended December 31, 1997. The
Company will deliver its Financial Statements for the period ended December 31,
1998 and for the six (6) month period ended June 30, 1999 within thirty (30)
days after the Closing Date. The Financial Statements (i) are or will be, as the
case may be, true, correct and complete, (ii) are in accordance with the Books
and Records of the Company, (iii) have been or will be, as the case may be,
prepared in conformity with GAAP, and (iv) fairly present the financial
condition and results of operations of the Company, as of the respective dates
thereof and for the periods covered thereby; provided that the Interim Financial
                                             --------
Statements are subject to normal year-end adjustments and lack footnotes and
certain other presentation items.

          3.11  Absence of Changes. Since the end of the period covered by the
                ------------------
Interim Financial Statements and up to the Closing Date, the Company and the
Stockholder have conducted the Company's business only in the Ordinary Course of
Business and there has not been any adverse change, or any event or development
which, individually or together with other such events, could reasonably be
expected to result in a Material Adverse Effect on the Company or the Assets and
Properties and since the end of the period covered by the Interim Financial
Statements, none of the Company and the Stockholder have taken any action which
if taken after the date of this Agreement, without COMPS's consent, would
violate Section 3.29 hereof.
        ------------

          3.12  No Undisclosed Liabilities. Except as disclosed in the
                --------------------------
Disclosure Schedule or in the Financial Statements, there are no Liabilities,
nor any basis for any claim against the Company for any such Liabilities,
relating to or affecting the Company or any of its Assets and Properties, other
than Liabilities incurred after the end of the period covered by the Interim
Financial Statements in the Ordinary Course of Business which have not had, and
could

                                     -11-
<PAGE>

not reasonably be expected to result in, individually or in the aggregate, a
Material Adverse Effect on the Company.

          3.13  Tangible Personal Property. The Company is in possession of and
                --------------------------
has good and marketable title to, or has valid leasehold interests in or valid
rights under written agreements to use, all tangible personal property,
equipment, plants, buildings, structures, facilities and all other Assets and
Properties used in or reasonably necessary for the conduct of the Company's
business, including all tangible personal property reflected on the Financial
Statements and on the Interim Financial Statements and any tangible personal
property acquired since that date other than property disposed of since such
date in the Ordinary Course of Business. All such tangible personal property,
equipment, plants, buildings, structures, facilities and all other assets and
properties are listed in the Disclosure Schedule and are free and clear of all
Encumbrances, other than Permitted Encumbrances. Such tangible personal property
shall include all Company Intellectual Property necessary for the ownership and
operation of the Business. All of the software in the Company Intellectual
Property shall be fully functional and free of defect as delivered upon Closing.
In the event the software in the Company Intellectual Property becomes defective
or is not functional in the same manner that it functioned prior to the Closing
as a result of (i) the source code of such software being altered by COMPS, (ii)
the maintenance of such software is changed from that on the Closing Date or
(iii) the data entry procedures are changed from those on the Closing Date
(collectively, the "Altered Software"), the representation in the immediately
preceding sentence shall become null and void with respect to the Altered
Software.

          3.14  Benefit Plans; ERISA.
                ---------------------

                (a)  The Company has a Simplified Employee Pension Plan (the
"SEP Plan"), as further described in the Disclosure Schedule. The SEP Plan has
been operated and administered in all material respects in accordance with its
terms and, as of the Closing Date, will be in full compliance, in form and
operation, with all applicable laws (including but not limited to ERISA and the
Code). The reserves reflected in the Financial Statements and in the Interim
Financial Statements for the obligations of the Company under the SEP Plan are
adequate and were determined in accordance with GAAP. There are no pending or,
to the Knowledge of the Stockholder and the Company, anticipated or threatened
claims by or on behalf of the SEP Plan by any employee or beneficiary covered
under the SEP Plan, or otherwise involving the SEP Plan (other than routine
claims for benefits).

                (b)  Other than the SEP Plan, the Company has no commitment,
proposal, or communication to employees regarding the creation of any Benefit
Plans or or any increase in benefits under the SEP Plan. Neither the Company, an
ERISA Affiliate or predecessor thereof has ever maintained, contributed to or
been obligated to contribute to any Defined Benefit Plan or multiemployer plan
(as defined in Section (3)(37) or 4001(a)(3) of ERISA) and no condition exists
that presents a risk to the Company or an ERISA Affiliate of incurring a
liability under Title IV of ERISA. Except as set forth in the Disclosure
Schedule, the consummation of the transactions contemplated by this Agreement
will not, either immediately or upon the occurrence of any event thereafter, (i)
entitle any current or former employee or officer or director of the Company or
any ERISA Affiliate to severance pay, unemployment

                                     -12-
<PAGE>

compensation or any other payment, or (ii) accelerate the time of payment or
vesting, or increase the amount of compensation otherwise due any such
individual.

          3.15  Real Property. The Disclosure Schedule contains a complete and
                -------------
accurate legal description of (i) each parcel of real property leased by the
Company (as lessee or lessor) (the "Real Property") and (ii) all Encumbrances
(other than Permitted Encumbrances) relating to or affecting the Real Property.
The Company has a valid leasehold interest in, all real property used in or
relating to the conduct of the Company's business, free and clear of all
Encumbrances other than Permitted Encumbrances. The Company has rights of
ingress and egress with respect to the Real Property, and all buildings,
structures, facilities, fixtures and other improvements thereon material for the
operation of the Company's business. There is no pending or, to the Knowledge of
the Stockholder or the Company, contemplated or threatened condemnation of any
of the respective parcels of Real Property or any part thereof. To the Knowledge
of the Stockholder and the Company, none of such Real Property, buildings,
structures, facilities, fixtures or other improvements, or the use thereof,
contravenes or violates any building, zoning, fire protection, administrative,
occupational safety and health or other applicable law, rule, or regulation
except for any contravention or violation which individually or in the aggregate
could not reasonably be expected to result in a Material Adverse Effect on the
Company. Each lease with respect to the Real Property is a legal, valid and
binding agreement of the Company subsisting in full force and effect enforceable
in accordance with its terms, and except as set forth in the Disclosure
Schedule, there is no, and the Company has not received notice of any, default
(or any condition or event which, after notice or lapse of time or both, would
constitute a default) thereunder. The Company does not owe any brokerage
commissions with respect to any such Real Property.

          3.16  Intellectual Property Rights.
                ----------------------------

                (a)  The Disclosure Schedule lists contains a true, complete and
correct list and summary of all of the Company Intellectual Property. The
Company has delivered to COMPS complete and accurate copies of each agreement,
registration and other documents relating to the Company Intellectual Property
set forth on the Disclosure Schedule.

                (b)  The Company owns or possess adequate and enforceable
licenses, patents, trademarks, service marks, brand names and trade names, all
applications for any of the foregoing, all other trade secrets, designs, plans,
specifications and other rights of every kind necessary to use the Company
Intellectual Property. The Company is not in violation of, or infringing upon,
any Intellectual Property of any third party, and no claims have been asserted,
nor is there any litigation pending or, to the Knowledge of the Stockholder and
the Company, threatened claiming such infringement. Other than commercially
available over-the-counter "shrink wrap" software, the Disclosure Schedule
identifies each item of Intellectual Property that any third party owns and that
the Company uses pursuant to license, sublicense, agreement or permission. With
respect to each such item: (i) the license, sublicense, agreement or permission
covering the item is legal, valid, binding, enforceable and in full force and
effect against the Company; (ii) the license, sublicense, agreement or
permission will continue to be legal, valid, binding, enforceable and in full
force and effect on identical terms following the consummation of the
transactions contemplated hereby; (iii) neither the Company, nor to the
Knowledge of the Stockholder or the Company, the other party to the license,
sublicense, agreement or permission

                                     -13-
<PAGE>

is in breach or default, and to the Knowledge of the Stockholder and the
Company, no event has occurred which with notice or lapse of time would
constitute a breach or default or permit termination, modification or
acceleration thereunder; (iv) neither the Company, nor to the Knowledge of the
Stockholder and the Company, the other party to the license, sublicense,
agreement or permission has repudiated any provision thereof; (v) with respect
to each sublicense, the representations and warranties set forth in subsections
(i) through (iv) above are true and correct with respect to the underlying
license; (vi) the underlying item of Intellectual Property is not subject to any
outstanding Order; (vii) no Actions or Proceedings against the Company are
pending or, to the Knowledge of the Stockholder and the Company, are threatened
which challenge the legality, validity or enforceability of the underlying item
of Intellectual Property; and (viii) the Company has not granted any sublicense
or similar right with respect to the license, sublicense, agreement or
permission. The Company has delivered to COMPS complete and accurate copies of
each agreement, registration and other documents relating to Company
Intellectual Property.

          3.17  Proprietary Information of Third Parties. No third party has
                ----------------------------------------
claimed or, to the Knowledge of the Stockholder and the Company, has reason to
claim that any person employed by or, to the Knowledge of the Stockholder and
the Company, affiliated with the Company in connection with and during the
Company's ownership and operation of its business has (i) violated or may be
violating any of the terms or conditions of such person's employment, non-
competition or non-disclosure agreement with such third party, (ii) disclosed or
may be disclosing or utilized or may be utilizing any trade secret or
proprietary information or documentation of such third party, or (iii)
interfered or may be interfering in the employment relationship between such
third party and any of its present or former employees. No third party has
requested information from the Company which suggests that such a claim might be
contemplated. No person employed by or affiliated with the Company in connection
with and during the Company's ownership and operation of its business has
employed or proposes to employ any trade secret or any information or
documentation proprietary to any former employer and no person employed by or
affiliated with the Company in connection with and during the Company's
ownership and operation of its business has violated any confidential
relationship which such person may have had with any third party, in connection
with the development, manufacture or sale of any product or proposed product or
the development or sale of any service or proposed service of the Company, and
the Stockholder and the Company have no reason to believe there will be any such
employment or violation.

          3.18  Litigation. There are no Actions or Proceedings pending or
                ----------
threatened or, to the Knowledge of the Stockholder and the Company, anticipated
against, relating to or affecting (i) the Company, its Assets and Properties or
the Company's business, (ii) the Stockholder and his business and properties, or
(iii) the transactions contemplated by this Agreement, and there is no basis for
any such Action or Proceeding. The Company is not in default with respect to any
Order, and there are no unsatisfied judgments against the Company.

          3.19  Compliance with Law. The Company is in compliance with all
                -------------------
applicable laws, statutes, Orders, ordinances and regulations, whether federal,
state, local or foreign, except where the failure to comply, in each instance
and in the aggregate, could not reasonably be expected to result in a Material
Adverse Effect on the Company. Neither the Company nor the Stockholder has
received any written notice to the effect that, or otherwise has

                                     -14-
<PAGE>

been advised that, the Company is not in compliance with any of such laws,
statutes, Orders, ordinances or regulations, where the failure to comply could
reasonably be expected to result in a Material Adverse Effect on the Company.

          3.20  Contracts.
                ---------

                (a)  The Disclosure Schedule contains a true and complete list
of each of the following written or oral contracts, agreements or other
arrangements to which the Company is a party or by which any of its Assets and
Properties is bound (and, to the extent oral, accurately describes the terms of
such contracts, agreements and arrangements):

                     (i)     all collective bargaining or similar labor
     agreements;

                     (ii)    all contracts for the employment of any officer,
     employee or other person or entity on a full time, part time, consulting or
     other basis;

                     (iii)   all loan agreements, indentures, debentures, notes
     or letters of credit relating to the borrowing of money or to mortgaging,
     pledging or otherwise placing a lien on any material asset or material
     group of assets of the Company;

                     (iv)    all guarantees of any obligation;

                     (v)     all leases or agreements under which the Company is
     lessee or lessor of, or holds, or operates, any property, real or personal,
     owned by any other party;

                     (vi)    all commitments, contracts, sales contracts,
     purchase orders, mortgage agreements or groups of related agreements with
     the same party or any group or affiliated parties which require or may in
     the future require payment of any consideration by the Company;

                     (vii)   all license agreements, distribution agreements or
     any other agreements involving any Company Intellectual Property;

                     (viii)  all subscription or registration rights agreements
     or any other agreements related to the equity ownership of the Company;

                     (ix)    all contracts or commitments that in any way
     restrict the Company from carrying on its business anywhere in the world;
     and

                     (x)     all other contracts and agreements that (A) involve
     the payment or potential payment, pursuant to the terms of any such
     contract or agreement, by the Company and (B) cannot be terminated within
     thirty (30) days after giving notice of termination without resulting in
     any cost or penalty to the Company.

                (b)   Each contract, agreement or other arrangement disclosed in
the Disclosure Schedule is in full force and effect and constitutes a legal,
valid and binding agreement, enforceable in accordance with its terms, of each
party thereto; and the Company has

                                     -15-
<PAGE>

performed all of its required obligations under, and is not in violation or
breach of or default under, any such contract, agreement or arrangement. The
other parties to any such contract, agreement or arrangement are not in
violation or breach of or default under any such contract, agreement or
arrangement. None of the present or former employees, officers, directors or
shareholders of the Company is a party to any oral or written contract or
agreement prohibiting any of them from freely competing with other parties or
engaging in the Company's as now operated.


          3.21  Environmental and Occupational Health Matters. The Company has
                ---------------------------------------------
not been and currently is not in violation of any applicable statute, law or
regulation relating to the environment or occupational health and safety
("Environmental and Occupational Laws"). The Company has all Permits and other
governmental authorizations currently required by all applicable statutes, laws
or regulations relating to the occupational health and safety necessary for the
conduct of the Business. There are no circumstances which may materially prevent
or interfere with compliance in the future of any Environmental and Occupational
Laws. The Company has not received any communication (whether written or oral),
whether from a Governmental or Regulatory Authority, citizen group, employee or
otherwise, that alleges that the Company is not in full compliance with
Environmental and Occupational Laws. There is no claim or notice of a violation
of Environmental and Occupational Laws (i) pending or, to the Knowledge of the
Stockholder and the Company, threatened against the Company, (ii) to the
Knowledge of the Stockholder and the Company, pending or threatened against any
Person whose liability for such violation may have been retained or assumed by
or could reasonably be imputed or attributed to the Company, or (iii) any basis
for such claim or notice of violation of Environmental and Occupational Laws.

          3.22  Assignment of Company Revenue. Prior to the Closing Date, the
                -----------------------------
Company was assigned the gross revenues derived from the Sendero Investments,
Inc.'s interest in the Commercial Broker's Network business (the "Parramore
Assignment Rights"). As of the Closing Date, the Parramore Assignment Rights
will terminate, the Company will have no rights of any kind or nature to receive
any portion of such gross revenues and COMPS shall have all right, title and
interest to any such gross revenues on and after the Closing Date free and clear
of all Encumbrances.

          3.23  Accounts Receivable. The accounts receivable and all other
                -------------------
receivables shown on the Financial Statements and on the Interim Financial
Statements (subject to reserves for non-collectability as reflected therein),
and all receivables acquired or generated by the Company since the end of the
period covered by the Interim Financial Statements (subject to reserves for
non-collectability as reflected on the books and financial statements of the
Company), are bona fide receivables and represent amounts due with respect to
actual, arms-length transactions entered into in the Ordinary Course of Business
of the Company and are collectible, legal, valid and binding obligations of the
obligors, and will be collected by the Company without counterclaim or setoff.
Such reserves have been reflected on the books and financial statements of the
Company in accordance with GAAP.

          3.24  Plants, Buildings, Structures, Facilities and Equipment. All
                -------------------------------------------------------
plants, buildings, structures, facilities and equipment used by the Company in
the conduct of its business are structurally sound with no known material
defects and are in good operating condition and

                                     -16-
<PAGE>

repair (subject to normal wear and tear) so as to permit the operation of its
business as presently conducted. No such plant, building, structure, facility or
equipment is in need of maintenance or repairs except for ordinary, routine
maintenance and repairs which are not material in nature or cost. With respect
to each plant, building, structure, facility or item of equipment, the Company
has not received notification that it is in violation, in any material respect,
of any applicable building, zoning, subdivision, fire protection, health or
other law, Order, ordinance or regulation and no such violation exists. Set
forth on the Disclosure Schedule is a list of certain furniture and/or equipment
which will be bought by the Stockholder from the Company prior to the Closing.

          3.25  Insurance. Set forth on the Disclosure Schedule is a complete
                ---------
and accurate list of all primary, excess and umbrella policies, bonds and other
forms of insurance currently owned or held by or on behalf of and/or providing
insurance coverage to the Company or the Assets and Properties of the Company
(or any of the Company's directors, officers, salespersons, agents or
employees), including the following information for each such policy: type(s) of
insurance coverage provided; name of insurer; effective dates; policy number;
per occurrence and annual aggregate deductibles or self-insured retentions; per
occurrence and annual aggregate limits of liability and the extent, if any, to
which the limits of liability have been exhausted. All policies set forth on the
Disclosure Schedule are in full force and effect, and with respect to such
policies, all premiums currently payable or previously due have been paid, and
no notice of cancellation or termination has been received with respect to any
such policy. All such policies are sufficient for compliance with all
requirements of law and all agreements to which the Company is a party or
otherwise bound, and are valid, outstanding, collectible and enforceable
policies and provide adequate insurance coverage for the Company and the
business and Assets and Properties of the Company and will remain in full force
and effect through the respective dates set forth in the Disclosure Schedule.
None of such policies contains a provision that would permit the termination,
limitation, lapse, exclusion or change in the terms of coverage of such policy
(including, without limitation, a change in the limits of liability) by reason
of the consummation of the transactions contemplated by this Agreement. Complete
and accurate copies of all such policies and related documentation have
previously been provided to COMPS.

          3.26  Tax Matters. (a) The Company has or will have filed with the
                -----------
appropriate federal, state, local and foreign taxing authorities all Tax Returns
required to be filed by or with respect to it on or before the Closing Date, and
such Tax Returns are or will be true, correct and complete in all material
respects. The Company has paid in full or has made provision in the Financial
Statements and the Interim Financial Statements for all taxes which are due or
claimed to be due from it by any taxing authority. The reserves for Taxes
reflected in the Financial Statements and in the Interim Financial Statements
are sufficient for payment in full of all unpaid Taxes (whether or not currently
known or disputed) through the date thereof. The Company has not incurred any
liability for Taxes other than in the ordinary course of its business since the
date of the most recent Interim Financial Statement. Except as set forth in the
Disclosure Schedule, there are no liens for Taxes upon the Assets and Properties
of the Company except for statutory liens for current Taxes not yet due.

                                     -17-
<PAGE>

               (b)  The Company has not requested any extension of time within
which to file any Tax Return, which Tax Return has not since been filed, or,
except as set forth in the Disclosure Schedule, waived any statute of
limitations for, or agreed to any extension of time with respect to, the
assessment of Taxes. Except as set forth in the Disclosure Schedule, the statute
of limitations for all Tax Returns of the Company has expired for all federal,
state, local and foreign Taxes, or the Tax Returns of the Company have been
examined by the appropriate taxing authorities for all periods. Except as set
forth in the Disclosure Schedule, the Company has not received any notice of
deficiency or assessment from any federal, state, local or foreign taxing
authorities with respect to liabilities for Taxes which have not been fully paid
or finally settled, and any such deficiency or assessment shown on the
Disclosure Schedule is being contested in good faith through appropriate
proceedings. Further, no state of facts exists or has existed which would
constitute grounds for the assessment of any liability for Taxes with respect to
the periods prior to the Closing Date which have not been audited by any taxing
authority. Neither the Company, its officers or directors, nor the Stockholder
are aware of any information which has caused or should cause them to believe
that an audit by any Tax authority may be forthcoming. No claim has ever been
made by an authority in a jurisdiction where the Company does not file Tax
Returns that it is or may be subject to taxation by that jurisdiction.

               (c)  The Company has withheld and paid all Taxes required to have
been withheld and paid in connection with amounts paid or owing to any employee,
independent contractor, creditor, stockholder, or other third party.

               (d)  The Company does not have any liability for the Taxes of any
other Person (A) under Treasury Regulations (S) 1.1502-6 (or any similar
provision of state, local, or foreign law), (B) as a transferee or successor,
(C) by contract, or (D) otherwise.

               (e)  The Company has not filed and will not file prior to the
Closing a consent under Code (S) 341(f). The Company is not obligated to make
any payments, and is not a party to any agreement that under certain
circumstances could obligate it to make any payments that will not be deductible
under Code (S) 162 or (S) 280G whether paid prior to or after the Closing. Prior
to the Closing, the Company will not have experienced a change of ownership
within the meaning of Code Section 382. The Company is not and has not been a
United States real property holding corporation within the meaning of Code (S)
897(c)(2).

          3.27 Labor and Employment Relations. No officer, executive, Key
               ------------------------------
Employee or group of ten (10) or more employees of the Company has or have any
plans to terminate his, her or their employment with the Company. The Company is
not a party to or bound by any collective bargaining agreement with any labor
organization, group or association covering any of its employees and there are
no attempts to organize any of the Company's employees by any person, unit or
group seeking to act as their bargaining agent. The Company has complied with
all applicable laws relating to the employment of labor, including provisions
thereof relating to wages, hours, equal opportunity, collective bargaining,
discrimination against race, color, national origin, religious creed, physical
or mental disability, sex, age, ancestry, medical condition, marital status or
sexual orientation, and the withholding and payment of social security and other
taxes. There are no pending or, to the Knowledge of the Stockholder and the
Company, threatened charges (by employees, their representatives or governmental
authorities) of unfair labor practices or of employment discrimination or of any
other wrongful

                                     -18-
<PAGE>

action with respect to any aspect of employment of any person employed or
formerly employed by the Company. No union representation elections relating to
the Company's employees have been scheduled by any Governmental or Regulatory
Authority, no organizational effort is being made with respect to any of such
employees and there is no investigation of the Company's employment policies or
practices by any Governmental or Regulatory Authority pending or threatened. The
Company is not currently, and in the past has not been, involved in labor
negotiations with any unit or group seeking to become the bargaining unit for
any employees of the Company. The Company has never experienced any work
stoppages and, to the Knowledge of the Stockholder and the Company, no work
stoppage has been threatened or is planned.

          3.28  Certain Employees. Set forth on the Disclosure Schedule is a
                -----------------
list of the names of the Company's employees and consultants as of the date
hereof involved in the management and business operations of the Company,
together with the title or job classification of each such person and the total
compensation (with wages and bonuses, if any, separately detailed) paid in 1998
(if applicable) and the current rate of pay for each such person on the date of
this Agreement. Except as set forth on the Disclosure Schedule, none of such
persons has an employment agreement or understanding, whether oral or written,
with the Company which is not terminable on notice by the Company without cost
or other liability to the Company, except for the vested commissions owed by the
Company as further described in the Disclosure Schedule.

          3.29  Absence of Certain Developments. Since the end of the period
                -------------------------------
covered by the Interim Financial Statements, the Company has not:

                (a)  issued any stock, bonds or other corporate securities or
any right, options or warrants with respect thereto;

                (b)  borrowed any amount, obtained any letters of credit or
incurred or become subject to any Liabilities in excess of Twenty Thousand
Dollars ($20,000) in the aggregate;

                (c)  discharged or satisfied any lien or Encumbrance or paid any
obligation or Liability, other than current Liabilities paid in the Ordinary
Course of Business and other than current federal income Tax liabilities;

                (d)  declared or made any payment or distribution of cash or
other property to shareholders with respect to its stock, or purchased or
redeemed any shares of its capital stock;

                (e)  mortgaged or pledged any of its Assets or Properties, or
subjected them to any lien, charge or any other Encumbrance, except liens for
current property Taxes not yet due and payable;

                (f)  sold, leased, subleased, assigned or transferred any of its
Assets or Properties, except in the Ordinary Course of Business, or cancelled
any debts or claims;

                (g)  made any changes in any employee compensation, severance or
termination agreement, commitment or transaction other than routine salary
increases consistent

                                     -19-
<PAGE>

with past practice or offer employment to any individuals with an annual
compensation, including salary, cash, bonuses and commissions, in excess of
Twenty-Seven Thousand Dollars ($27,000 per month prorated);

                (h)  entered into any material transaction, or modified any
existing transaction (the aggregate consideration for which is in excess of Ten
Thousand Dollars ($10,000);

                (i)  suffered any damage, destruction or casualty loss, whether
or not covered insurance;

                (j)  made any capital expenditures, additions or improvements or
commitments for the same, except those made in the Ordinary Course of Business
which in the aggregate do not exceed Ten Thousand Dollars ($10,000);

                (k)  entered into any transaction or operated the Company's
business, not in the Ordinary Course of Business;

                (l)  made any change in its accounting methods or practices or
ceased making accruals for taxes, obsolete inventory, vacation and other
customary accruals;

                (m)  ceased from reserving cash to pay taxes, principal and
interest on borrowed funds, and other customary expenses and payments;

                (n)  caused to be made any reevaluation of any of its Assets or
Properties;

                (o)  caused to be entered into any amendment or termination of
any lease, customer or supplier contract or other material contract or agreement
to which it is a party;

                (p)  made any material change in any of its business policies,
including, without limitation, advertising, distributing, marketing, pricing,
purchasing, personnel, sales, returns, budget or product acquisition or
sale policies;

                (q)  terminated or failed to renew, or received any written
threat (that was not subsequently withdrawn) to terminate or fail to renew, any
contract or other agreement that is or was material to the Company's business or
its financial condition;

                (r)  permitted to occur or be made any other event or condition
of any character which has had a Material Adverse Effect on it;

                (s)  waived any rights material to its financial or business
condition;

                (t)  made any illegal payment or rebates; or

                (u)  entered into any agreement to do any of the foregoing.

                                     -20-
<PAGE>

          3.30  Customers. The Company has previously provided to COMPS a true
                ---------
and correct list of the Company's customers during the 1998 fiscal year and the
seven (7)-month period ended July 31, 1999. Except as set forth in the
Disclosure Schedule, since December 31, 1998, no single customer or group of
affiliated customers contributing more than Five Thousand Dollars ($5,000) per
annum to the gross revenues of the Company has stopped doing business with the
Company and, to the Knowledge of the Stockholder and the Company, no such
customer has an intention to discontinue doing business or reduce the level of
gross revenues from that in fiscal years 1998 or 1999 with the Company.

          3.31  Necessary Property. All of the Real Property and Assets and
                ------------------
Properties owned or leased by the Company and the Intellectual Property listed
on the Disclosure Schedule owned by or licensed to the Company constitute all of
the property reasonably necessary for the conduct of the Company's business in
the manner and to the extent presently conducted by the Company.

          3.32  Bank Accounts. The Disclosure Schedule contains a complete and
                -------------
accurate list of each deposit account or asset maintained by or on behalf of the
Company with any bank, brokerage house or other financial institution,
specifying with respect to each the name and address of the institution, the
name under which the account is maintained, the account number, and the name and
title or capacity of each Person authorized to have access thereto.

          3.33  Permits. No Permits are necessary for the Company to conduct the
                -------
Business in compliance with all applicable federal, state and local laws.
Neither the execution, delivery or performance of this Agreement nor the mere
passage of time will cause any Permits to be required by virtue of the
execution, delivery or performance of this Agreement to enable the Company to
conduct its business as now operated. There is no pending Action or Proceeding
by any Governmental or Regulatory Authority which could affect the current
conduct of the Company's business or of the conduct of the Company's business
after the Closing.

          3.34  Third Party Consents. No consent, approval or authorization of
                --------------------
any third party on the part of the Stockholder or the Company is required in
connection with the consummation of the transactions contemplated hereunder
except as otherwise provided in the Disclosure Schedule.

          3.35  Investment Representations. The Stockholder is an "accredited
                --------------------------
investor" within the meaning of the Securities Act. The Stockholder is aware
that COMPS Securities issued or issuable pursuant to this Agreement have not
been registered under the Securities Act or any applicable state securities
laws, and agrees that COMPS Securities will not be offered or sold in the
absence of registration under the Securities Act and any applicable state
securities laws or an exemption from the registration requirements of the
Securities Act and any applicable state securities laws, which shall be
accompanied by an opinion of counsel to the Stockholder satisfactory to COMPS
and its counsel that registration of such securities is not required. The
Stockholder agrees not to transfer COMPS Securities in violation of the
provisions of any applicable federal or state securities laws. In this
connection, the Stockholder represents that the Stockholder is familiar with
Rule 144 and Rule 145 promulgated by the SEC pursuant to the Securities Act, as
presently in effect, and understands the resale limitations imposed thereby and
by the Securities Act. The Stockholder understands that the offering and

                                     -21-
<PAGE>

sale of COMPS Securities is intended to be exempt from registration under the
Securities Act, by virtue of the private placement exemption provided by Rule
505 and/or 506 of Regulation D promulgated under the Securities Act and/or
Section 4(2) of the Securities Act, based, in part, upon the representations,
warranties and agreements contained in this Agreement, and COMPS may rely on
such representations, warranties and agreements in connection therewith. The
Stockholder is acquiring COMPS Securities for the Stockholder's own account and
for investment, and not with a view to the distribution thereof or with any
present intention of distributing or selling any of COMPS Securities except in
compliance with the Securities Act. The Stockholder represents that by reason of
the Stockholder's business and financial experience, and the business and
financial experience of those persons, if any, retained by the Stockholder to
advise him, her or it with respect to the investment in COMPS Securities, the
Stockholder together with such advisors have knowledge, sophistication and
experience in business and financial matters as to be capable of evaluating the
merits and risk of the prospective investment. The financial condition and
investments of the Stockholder are such that the Stockholder is in a financial
position to hold COMPS Securities for an indefinite period of time and to bear
the economic risk of, and withstand a complete loss of, the investment in COMPS
Securities. The Stockholder has carefully examined this Agreement and all
exhibits and schedules thereto and COMPS SEC Filings. The Stockholder
acknowledges that COMPS has made available all documents and information that
the Stockholder has requested relating to COMPS and has provided answers to all
of the Stockholder's questions concerning COMPS and/or COMPS Securities. In
evaluating the suitability of the acquisition of COMPS Securities hereunder, the
Stockholder has not relied upon any representations or other information
(whether oral or written) other than as set forth in COMPS SEC Filings or as
contained herein.

          3.36  Brokers.  The Company has retained a broker, William York, in
                -------
connection with the transactions contemplated hereunder. COMPS has, and will
have, no obligation to pay any broker's, finder's, investment banker's,
financial advisor's or similar fee in connection with this Agreement or the
transactions contemplated hereby by reason of any action taken by or on behalf
of the Stockholder or the Company.

          3.37  Net Assets. Net Assets ("Net Assets") for June 30, 1999 and as
                ----------
of the Closing Date is calculated as assets less liabilities as described in the
June 30, 1999 balance sheet attached hereto (the "June 30 Balance Sheet"). The
June 30 Balance Sheet is true, complete and accurate. The calculation of the Net
Assets as of the Closing Date will be based on an accounting basis consistent
with the June 30 Balance Sheet; specially, there shall be no adjustments for
unearned revenue, federal or Texas franchise taxes, or accrued annual leave. The
Stockholder agrees that there shall be an adjustment to the Purchase Price if
the Net Assets as the Closing Date is less than Seventy-Five Thousand Eight
Hundred Forty-Eight Dollars ($75,848). Such purchase price adjustment shall be
in the form of an offset against the Promissory Note.

          3.38  Operating Profit. The aggregate net income of the Parramore,
                ----------------
Inc. and CBN/ARA-HL for the first six (6) months of 1999 as described in the
Interim Financial Statements (the "Pre-audited Net Income") shall not have
decreased by more than Ten Thousand Dollars ($10,000) for the same period from
the net income (cash basis adjusted) described in the audited version of the
Interim Financial Statements (the "Audited Net Income") to be delivered within
thirty (30) days following the Closing. In the event the Pre-audited Net Income
is less

                                     -22-
<PAGE>

than the Audited Net Income by more than Ten Thousand Dollars ($10,000), the
Stockholder shall be obligated to indemnify COMPS pursuant to Section 5.2 below
                                                              -----------
for an amount equal the product of (i) five (5) times the difference between
such Pre-audited Net Income and the Audited Net Income, multiplied by (ii) two
                                                        ----------
(2). This product represents the annualized result.


          3.39  Year 2000 Compliance. For purposes of this Section: (i) "Year
                --------------------
2000 Processing" means processing by the Company Intellectual Property that
manage and/or manipulate data involving dates, including single century formulas
and multi-century formulas and dates on or after January 1, 2000; and (ii)
"properly perform the Year 2000 Processing" means that the Company's
Intellectual Property will not cause an abnormally ending dating scenario within
the application or result in incorrect values generated involving such dates.
The Stockholder warrant that (x) any version of Company's Intellectual Property
being transferred to COMPS, other than over-the-counter "shrink wrap" software,
shall properly perform Year 2000 Processing, and (y) all other versions of
Company's Intellectual Property provided by the Company shall properly perform
Year 2000 Processing. The Stockholder shall have the right to cure any Year 2000
Processing problems that arise from any Year 2000 process automatically provided
that the Stockholder resolve such Year 2000 processing problem by December 1,
1999.

          3.40  Absence of Liabilities to Lenders and Lienholders.
                -------------------------------------------------

                (a)  As of the Closing Date, the Company does not owe
Stockholder or his Affiliates any money related to any loans previously made by
Stockholder or his Affiliates to the Company (the "Loans"). All obligations
pursuant to the Loans have been paid in full, and all promissory notes related
to the Loans have been cancelled. On and after the Closing Date, the Company
shall not have any liability or incur any Damages related to the Loans.

                (b)  As of the Closing Date, Bank One has a lien on the
Company's assets (the "Lien"). On and after the Closing Date, the Company shall
not have any liability or incur any damages related to the Lien. The Stockholder
shall take all appropriate measures necessary to terminate the Lien as soon as
practicable after the Closing.

          3.41  Material Misstatements and Omissions. The statements,
                ------------------------------------
representations and warranties of the Stockholder contained in this Agreement
(including the exhibits and schedules hereto) and in each document, statement,
certificate or exhibit furnished or to be furnished by or on behalf of the
Company and the Stockholder pursuant hereto, or in connection with the
transactions contemplated hereby, taken together, do not contain and will not
contain any untrue statement of a material fact and do not and will not omit to
state a material fact necessary to make the statements or facts contained herein
or therein, in light of the circumstances made, not misleading.


                                  ARTICLE IV
                    REPRESENTATIONS AND WARRANTIES OF COMPS
                    ---------------------------------------

          COMPS represents and warrants to the Stockholder as of the Closing, as
follows:

          4.1  Organization of COMPS. COMPS is a corporation duly organized,
               ---------------------
validly existing, and in good standing under the laws of the State of Delaware.
COMPS is duly

                                     -23-
<PAGE>

authorized to conduct business and is in good standing under the laws of each
jurisdiction where such qualification is required except for any jurisdiction
where failure so to qualify would not have a Material Adverse Effect upon COMPS.
COMPS has full power and authority, and holds all Permits and authorizations
necessary, to carry on the business in which it is engaged and to own and use
the properties owned and used by it except where the failure to have such power
and authority or to hold such license, permit or authorization would not have a
Material Adverse Effect on COMPS.

          4.2   Authority of COMPS. COMPS has all necessary corporate power and
                ------------------
corporate authority and has taken all corporate actions necessary to enter into
this Agreement, to consummate the transactions contemplated hereby and to
perform its obligations hereunder and no other proceedings on the part of COMPS
are necessary to authorize this Agreement or to consummate the transactions
contemplated hereby. This Agreement has been duly and validly executed and
delivered by COMPS and constitutes a legal, valid and binding obligation of
COMPS enforceable against COMPS in accordance with its terms except (i) as
limited by applicable bankruptcy, insolvency, reorganization, moratorium and
other laws of general application affecting enforcement of creditors' rights
generally and (ii) as limited by laws relating to the availability of specific
performance, injunctive relief or other equitable remedies.

          4.3   COMPS SEC Filings. COMPS has furnished or made available to the
                -----------------
Stockholder copies of all reports or registration statements filed by it with
the SEC under the Securities Act and the Exchange Act for all periods since May
5, 1999, all in the form so filed (all the foregoing being collectively referred
to as "COMPS SEC Filings"). As of their respective filing dates, COMPS SEC
Filings complied in all material respects with the requirements of the
Securities Act or the Exchange Act, as the case may be, and none of COMPS SEC
Filings contained any untrue statement of a material fact or omitted to state a
material fact required to be stated therein or necessary to make the statements
made therein, in light of the circumstances in which they were made, not
misleading, except to the extent corrected by a document subsequently filed with
the SEC. The financial statements of COMPS, including the notes thereto,
included in the COMPS SEC Filings comply as to form in all material respects
with applicable accounting requirements and with the published rules and
regulations of the SEC with respect thereto, have been prepared in accordance
with GAAP consistently applied (except as may be indicated in the notes thereto
or, in the case of unaudited statements, as permitted by Form 10-Q of the SEC)
and present fairly the financial position of COMPS at the dates thereof and the
results of its operations and cash flows for the periods then ended (subject, in
the case of unaudited statements, to normal audit adjustments).

                                   ARTICLE V
                   ACTIONS BY THE PARTIES AFTER THE CLOSING
                   ----------------------------------------

          5.1   Survival of Representations, Warranties, Etc. The
                --------------------------------------------
representations, warranties and covenants contained in or made pursuant to this
Agreement or any certificate, document or instrument delivered pursuant to or in
connection with this Agreement in the transactions contemplated hereby shall
survive the execution and delivery of this Agreement and the Closing hereunder
notwithstanding any investigation, analysis or evaluation by COMPS or its
designees of the Assets and Properties, its business, operations or condition
(financial or otherwise) of the Company and thereafter the representations and
warranties of the Stockholder

                                     -24-
<PAGE>

and the Company shall continue to survive in full force and effect for a period
of two (2) calendar years after the Closing Date.

          5.2  Indemnification.
               ---------------

               (a)  By the Stockholder. The Stockholder shall indemnify, defend
and hold harmless COMPS, and its officers, directors, employees, agents,
successors and assigns (collectively the "COMPS Group") from and against any and
all costs, losses (including, without limitation, diminution in value),
Liabilities, damages, lawsuits, deficiencies, claims and expenses, including
without limitation, interest, penalties, costs of mitigation, lost profits and
other losses resulting from any shutdown or curtailment of operations,
attorneys' fees and all amounts paid in investigation, defense or settlement of
any of the foregoing (collectively, the "Damages"), incurred in connection with,
arising out of, resulting from or incident to (i) any breach of any covenant,
representation, warranty or agreement or the inaccuracy of any representation,
made by the Company or the Stockholder in or pursuant to this Agreement, or in
the other documents delivered in connection with the transactions contemplated
in this Agreement and (ii) Actions or Proceedings set forth in the Disclosure
Schedule or in the other documents delivered in connection with the transactions
contemplated in this Agreement.

               (b)  By COMPS. COMPS shall indemnify, reimburse, defend and hold
harmless the Stockholder and his employees, agents, successors and assigns from
and against any and all Damages incurred in connection with, arising out of,
resulting from or incident to any breach of any covenant, representation,
warranty or agreement or the inaccuracy of any representation, made by COMPS in
or pursuant to this Agreement.

               (c)  Defense of Claims. If any Action or Proceeding is filed or
initiated against any party entitled to the benefit of indemnity hereunder,
written notice thereof shall be given to the indemnifying party as promptly as
practicable (and in any event within ten (10) days after the service of the
citation or summons); provided, however, that the failure of any indemnification
                      --------  -------
hereunder except to the extent that the indemnifying party demonstrates actual
damage caused by such failure. After such notice, if the indemnifying party
shall acknowledge in writing to the indemnified party that the indemnifying
party shall be obligated under the terms of its indemnity hereunder in
connection with such Action or Proceeding, then the indemnifying party shall be
entitled, if it so elects, to take control of the defense and investigation of
such Action or Proceeding and to employ and engage attorneys of its own choice
to handle and defend the same, such attorneys to be reasonably satisfactory to
the indemnified party, at the indemnifying party's cost, risk and expense
(unless (i) the indemnifying party has failed to assume the defense of such
Action or Proceeding or (ii) the named parties to such Action or Proceeding
include both of the indemnifying party and the indemnified party, and the
indemnified party and its counsel determine in good faith that there may be one
or more legal defenses available to such indemnified party that are different
from or additional to those available to the indemnifying party and that joint
representation would be inappropriate), and to compromise or settle such Action
or Proceeding, which compromise or settlement shall be made only with the
written consent of the indemnified party, such consent not to be unreasonably
withheld. The indemnified party may withhold such consent if such compromise or
settlement would adversely affect the conduct of business or requires less than
an unconditional release to be obtained. If

                                     -25-
<PAGE>

(i) the indemnifying party fails to assume the defense of such Action or
Proceeding within fifteen (15) days after receipt of notice thereof pursuant to
this Section 5.2, or (ii) the named parties to such Action or Proceeding include
     -----------
both the indemnifying party and the indemnified party and the indemnified party
and its counsel determine in good faith that there may be one or more legal
defenses available to such indemnified party that are different from or
additional to those available to the indemnifying party and that joint
representation would be inappropriate, the indemnified party against which such
Action or Proceeding has been filed or initiated will (upon delivering notice to
such effect to the indemnifying party) have the right to undertake, at the
indemnifying party's cost and expense, the defense, compromise or settlement of
such Action or Proceeding on behalf of and for the account and risk of the
indemnifying party; provided, however, that such Action or Proceeding shall not
                    --------  -------
be compromised or settled without the written consent of the indemnifying party,
which consent shall not be unreasonably withheld. In the event the indemnified
party assumes defense of the Action or Proceeding, the indemnified party will
keep the indemnifying party reasonably informed of the progress of any such
defense, compromise or settlement and will consult with, when appropriate, and
consider any reasonable advice from, the indemnifying party of any such defense,
compromise or settlement. The indemnifying party shall be liable for any
settlement of any action effected pursuant to and in accordance with this
Section 5.2 and for any final judgment (subject to any right of appeal), and the
- -----------
indemnifying party agrees to indemnify and hold harmless the indemnified party
from and against any Damages by reason of such settlement or judgment.

          Regardless of whether the indemnifying party or the indemnified party
takes up the defense, the indemnifying party will pay reasonable costs and
expenses in connection with the defense, compromise or settlement for any Action
or Proceeding under this Section 5.2.
                         -----------

          The indemnified party shall cooperate in all reasonable respects with
the indemnifying party and such attorneys in the investigation, trial and
defense of such Action or Proceeding and any appeal arising therefrom; provided,
                                                                       --------
however, that the indemnified party may, at its own cost, participate in the
- -------
investigation, trial and defense of such Action or Proceeding and any appeal
arising therefrom.  The indemnifying party shall pay all expenses due under this

Section 5.2 as such expenses become due.  In the event such expenses are not so
- -----------
paid, the indemnified party shall be entitled to settle any Action or Proceeding
under this Section 5.2 without the consent of the indemnifying party and without
           -----------
waiving any rights the indemnified party may have against the indemnifying
party.

               (d)  Other Claims. A claim for indemnification for any matter not
                    ------------
involving a third-party claim may be asserted by notice to the party from whom
indemnification is sought.

               (e)  Tax Indemnification.
                    --------------------

                    (i)    Notwithstanding anything in this Agreement to the
contrary, the Stockholder shall indemnify, reimburse, defend and hold harmless
all members of the COMPS Group for, from and against all Damages arising in
respect of any "Pre-Closing Period" (as defined below) asserted against or
incurred by members of the COMPS Group resulting from a breach of the
representations or warranties set forth in Section 3.26 herein,
                                           ------------

                                     -26-
<PAGE>

including ithout limitation the Disclosure Schedule referred to therein and
relating to such Section ("Tax Losses").

               (ii)   "Pre-Closing Period" means any taxable period ending on or
before the Closing Date, and the portion of any taxable period beginning on or
before but ending after the Closing Date which portion begins on the first day
of such a taxable period and ends on the Closing Date.

               (iii)  Notwithstanding anything in this Agreement to the
contrary, COMPS shall have the right, for the period covered by Section 3.26
                                                                ------------
hereof, to control any audit or determination by any taxing authority, initiate
any claim for refund or amended return, contest, defend against, resolve, and
settle any assessment, notice of deficiency or other adjustment or proposed
adjustment of Taxes or otherwise resolve any issue pertaining to any Tax Losses.
The Stockholder shall have the right to receive in a timely manner copies of all
non-privileged correspondence, records and relevant documentation and to be
timely informed of and to attend all meetings with third parties relating to any
claimed Tax Losses.

          (f)  Limitation on Indemnification.
               -----------------------------

               (i)    The Stockholder shall have no liability to any member of
the COMPS Group, and COMPS shall have no liability to the Stockholder, for
amounts payable pursuant to their respective indemnification obligations in this
Section 5.2 until the total of all Damages incurred by the indemnified party (i)
- -----------
exceeds Ten Thousand Dollars ($10,000) with respect to Section 3.38 only and
                                                       ------------
(ii) exceeds Twenty-Five Thousand Dollars ($25,000) in the aggregate for all
other Damages (collectively, the "Threshold Amount"), and then indemnification
by the indemnifying party shall apply to all such Damages including the
Threshold Amount;

               (ii)   The Stockholder shall have no liability to any member of
the COMPS Group, and COMPS shall have no liability to the Stockholder or to the
Company, pursuant to their respective indemnification obligations in this
Section 5.2 to the extent that the total of all Damages paid by the
- -----------
indemnifying party pursuant to such indemnification obligations exceeds Four
Hundred Ninety Thousand Two Hundred Eighty Dollars ($490,280).

               (iii)  The limitation on COMPS' indemnification obligation in
this Section 5.2(f) shall not apply to any fraud or intentional breach by COMPS
     --------------
of any representation, warranty, covenant or agreement or obligation of COMPS.
The limitation on the Stockholder's indemnification obligation in this Section
                                                                       -------
5.2(f) shall not apply to (i) any fraud or intentional breach by the Stockholder
- ------
or the Company of any representation, warranty, covenant or agreement or
obligation of the Stockholder of the Company, (ii) any breach of the
representations and warranties by the Stockholder or the Company in Sections
                                                                    --------
3.2, 3.3, 3.26, 3.37 and 3.40 and (iii) any discrepancies in the calculation of
- --------------------     ----
the account receivables stated in the Interim Financial Statements and the
account receivables stated in the Financial Statements.  The limitation on the
Stockholder's indemnification obligation in Section 5.2(f)(ii) shall not apply
                                            ------------------
to any breach of the representations and warranties by the Stockholder or the
Company in Section 3.38.
           ------------

     5.3  Offset.
          ------

                                     -27-
<PAGE>

               (a)  In addition to any other rights and remedies available to
COMPS herein, COMPS shall have the right during the twenty-four (24) month
period immediately following the Closing to offset any amounts to which it may
be entitled under Section 5.2 above against amounts otherwise payable under
                  -----------
the Promissory Note (the "Offset Amount"). If COMPS elects to offset any Offset
Amount against the Promissory Note, COMPS shall promptly notify the Stockholder
in writing (the "Offset Notice") by certified mail (return receipt requested) or
by a nationally recognized overnight courier service (e.g., Federal Express) of
the amount, nature and basis of the offset. In the event the Stockholder dispute
COMPS' offset, the Stockholder shall notify COMPS of such dispute in writing
(the "Dispute Notice") by certified mail (return receipt requested) or a
nationally recognized overnight courier service within ten (10) days of COMPS'
mailing of the Offset Notice. If no Dispute Notice is given within such ten (10)
day period, COMPS' offset described in the Offset Notice shall be deemed agreed
upon between the parties and the Offset Amount offset against the Promissory
Note shall be subtracted from the outstanding principal balance of the
Promissory Note at such time. In the event a Dispute Notice is timely delivered
to COMPS, COMPS and the Stockholder shall first use their best efforts to
resolve such dispute among themselves within ten (10) days following COMPS'
receipt of the Dispute Notice. If COMPS and the Stockholder are unable to
resolve the dispute within such ten (10) day period, COMPS and the Stockholder
agree to settle the dispute by binding arbitration, in accordance with Section
                                                                       -------
6.10 below In the event of a dispute, the amount of the Offset Amount to be
- ----
offset against the Promissory Note and all interests accrued thereon shall not
be released to the Stockholder pursuant to Section 2.4(b) hereof (and the terms
                                           --------------
of the Promissory Note), but shall be held by COMPS until such dispute is
resolved.

               (b)  The exercise of an offset by COMPS pursuant to Section
                                                                   -------
5.3(a) above, whether or not ultimately determined to be justified, will not
- ------
constitute an event of default under the Promissory Note or any instrument
securing the Promissory Note. Neither the exercise of nor the failure to
exercise such right of offset will constitute an election of remedies or limit
COMPS in any manner in the enforcement of any other remedies that may be
available to it.

          5.4  Further Assurances. In case at any time after the Closing any
               ------------------
further action is necessary or desirable to carry out the purposes of this
Agreement, each of the parties will take such further action (including the
execution and delivery of such further instruments and documents) as the other
party reasonably may request, all the sole cost and expense of the requesting
party (unless the requesting party is entitled to indemnification therefor under
this Article 5).

          5.5  Restricted Securities.
               ---------------------

               (a)  Transfer of this Note or Securities on Conversion Thereof.
                    ----------------------------------------------------------
With respect to any proposed offer, sale, assignment or other disposition of the
Promissory Note or securities into which the Promissory Note may be converted,
the Stockholder will provide (i) written notice to COMPS prior thereto,
describing briefly the proposed offer, sale or other disposition, (ii) a written
opinion of the Stockholder's counsel, reasonably satisfactory to COMPS and
accompanied by such supporting documents as COMPS may reasonably request, to the
effect that such offer, sale or other distribution may be effected without
registration or qualification (under any federal or state law then in effect)
and (iii) the party acquiring the Promissory Note has agreed in writing for the
benefit of COMPS to be bound by the terms of the

                                     -28-
<PAGE>

Promissory Note. Promptly upon receiving the foregoing, COMPS as promptly as
practicable, shall notify the Stockholder whether the Stockholder may sell or
otherwise dispose of this Promissory Note or such securities, all in accordance
with the terms of the notice delivered to COMPS. If a determination has been
made pursuant to this Section 5.5 that the opinion of counsel for the
                      -----------
Stockholder is not reasonable satisfactory to COMPS or the party acquiring the
Promissory Note has not agreed to be bound by the terms of the Promissory Note,
COMPS shall so notify the Stockholder promptly after such determination has been
made. The Promissory Note thus transferred and each certificate representing the
securities thus transferred shall bear the legends set forth in below. COMPS
shall be entitled to issue stop transfer instructions to its transfer agent in
connection with such restrictions.

               (b)  No Stockholder Rights. Nothing contained in this Agreement
                    ---------------------
or the Promissory Note shall be construed as conferring upon the Stockholder or
any other person the right to vote or to consent or to receive notice as a
stockholder in respect of meetings of stockholders for the election of directors
of COMPS or any other matters or any rights whatsoever as a stockholder of
COMPS; and no dividends or interest shall be payable or accrued in respect of
the Promissory Note or the interest represented hereby or the Common Stock into
which the Promissory Note is convertible until, and only to the extent that, the
Promissory Note shall have been converted.

               (c)  Legends. The Stockholder understands that the Promissory
                    -------
Note and the certificates evidencing the Securities issuable under the
Promissory Note may bear one or all of the following legends:

                    (i)    NEITHER THIS CONVERTIBLE SUBORDINATED PROMISSORY NOTE
NOR ANY OF THE SECURITIES ISSUABLE HEREUNDER HAS BEEN REGISTERED UNDER THE
SECURITIES ACT OF 1933, AS AMENDED (THE "ACT"), AND MAY NOT BE OFFERED, SOLD OR
OTHERWISE TRANSFERRED, PLEDGED OR HYPOTHECATED IN THE ABSENCE OF A REGISTRATION
STATEMENT IN EFFECT WITH RESPECT TO THE SECURITIES, OR DELIVERY TO THE COMPANY
OF AN OPINION OF COUNSEL IN FORM AND SUBSTANCE SATISFACTORY TO THE COMPANY THAT
SUCH OFFER, SALE OR TRANSFER, PLEDGE OR HYPOTHECATION IS IN COMPLIANCE WITH THE
ACT OR UNLESS SOLD IN FULL COMPLIANCE WITH RULE 144 UNDER THE ACT.

                    (ii)   THE SECURITIES REPRESENTED BY THIS CERTIFICATE ARE
SUBJECT TO A LOCK-UP PERIOD OF UP TO 180 DAYS FOLLOWING THE EFFECTIVE DATE OF A
REGISTRATION STATEMENT OF THE COMPANY FILED UNDER THE SECURITIES ACT OF 1933, AS
AMENDED, AS SET FORTH IN THE 7% CONVERTIBLE SUBORDINATED PROMISSORY NOTE BETWEEN
THE COMPANY AND THE ORIGINAL HOLDER OF THE SECURITIES, A COPY OF WHICH MAY BE
OBTAINED AT THE PRINCIPAL OFFICE OF THE COMPANY. SUCH LOCK-UP PERIOD IS BINDING
ON TRANSFEREES OF THESE SECURITIES.

                    (iii)  Any legend required by the laws of the State of
California, including any legend required by the California Department of
Corporations and Sections 417 and 418 of the Code.

                                     -29-
<PAGE>

                    (iv)  California Commissioner of Corporations. THE SALE OF
                          ---------------------------------------
THE SECURITIES WHICH ARE THE SUBJECT OF THIS AGREEMENT AND THE PROMISSORY NOTE
HAS NOT BEEN QUALIFIED WITH THE COMMISSIONER OF CORPORATIONS OF THE STATE OF
CALIFORNIA AND THE ISSUANCE OF SUCH SECURITIES OR THE PAYMENT OR RECEIPT OF ANY
PART OF THE CONSIDERATION FOR SUCH SECURITIES PRIOR TO SUCH QUALIFICATION IS
UNLAWFUL, UNLESS THE SALE OF SECURITIES IS EXEMPT FROM QUALIFICATION BY SECTION
25100, 25102 OR 25105 OF THE CALIFORNIA CORPORATIONS CODE. THE RIGHTS OF ALL
PARTIES TO THIS AGREEMENT AND THE PROMISSORY NOTE ARE EXPRESSLY CONDITIONED UPON
SUCH QUALIFICATION BEING OBTAINED, UNLESS THE SALE IS SO EXEMPT.

               (d)  Market Stand-Off Agreement.  During the period of duration
                    --------------------------
(not to exceed 180 days) specified by COMPS and an underwriter of Common Stock
or other securities of COMPS, following the effective date of any registration
statement of COMPS filed under the Act, the Stodckholder shall not, to the
extent requested by COMPS and such underwriter, directly or indirectly sell,
offer to sell, contract to sell (including, without limitation, any short sale),
grant any option to purchase or otherwise transfer or dispose of (other than to
transferees or donees who agree to be similarly bound) any securities of COMPS
held by it at any time during such period except Common Stock included in such
registration. In order to enforce the foregoing covenant, COMPS may impose stop-
transfer instructions with respect to the Common Stock of the Stockholder (and
the shares or securities of every other person subject to the foregoing
restriction) until the end of such period.

                                  ARTICLE VI
                                 MISCELLANEOUS
                                 -------------

          6.1  Notices. All notices, requests and other communications hereunder
               -------
must be in writing and will be deemed to have been duly given only if delivered
personally against written receipt or by facsimile transmission with answer back
confirmation or mailed (postage prepaid by certified or registered mail, return
receipt requested) or by overnight courier to the parties at the following
addresses or facsimile numbers:

          If to Stockholder, to:

               Elliott P. Flick
               3409 Hillview
               Austin, Texas 78703
               Facsimile No:  (512) 327-6568

          If to COMPS, to:

               COMPS.COM, INC.
               9888 Carroll Centre Road, Suite 100
               San Diego, CA  92126-4580
               Facsimile No:  (619) 684-3292
               Attention:  Christopher A. Crane

                                     -30-
<PAGE>

          with copies to:

               Brobeck, Phleger & Harrison LLP
               550 West "C" Street
               Suite 1300
               San Diego, CA  92101
               Facsimile No.:  (619) 234-3848
               Attention:  Craig S. Andrews, Esq.

          All such notices, requests and other communications will (i) if
delivered personally to the address as provided in this Section 6.1, be deemed
                                                        -----------
given upon delivery, (ii) if delivered by facsimile transmission to the
facsimile number as provided in this Section 6.1, be deemed given upon receipt,
                                     -----------
and (iii) if delivered by mail in the manner described above to the address as
provided in this Section 6.1, be deemed given upon receipt (in each case
                 -----------
regardless of whether such notice, request or other communication is received by
any other Person to whom a copy of such notice, request or other communication
is to be delivered pursuant to this Section).  Any party from time to time may
change its address, facsimile number or other information for the purpose of
notices to that party by giving notice specifying such change to the other
parties hereto.

          6.2  Entire Agreement. This Agreement (and all Exhibits and Schedules
               ----------------
attached hereto, all other documents delivered in connection herewith)
supersedes all prior discussions and agreements among the parties with respect
to the subject matter hereof and contains the sole and entire agreement among
the parties hereto with respect thereto.

          6.3  Waiver. Any term or condition of this Agreement may be waived at
               ------
any time by the party that is entitled to the benefit thereof, but no such
waiver shall be effective unless set forth in a written instrument duly executed
by or on behalf of the party waiving such term or condition. No waiver by any
party hereto of any term or condition of this Agreement, in any one or more
instances, shall be deemed to be or construed as a waiver of the same or any
other term or condition of this Agreement on any future occasion. All remedies,
either under this Agreement or by law or otherwise afforded, will be cumulative
and not alternative.

          6.4  Amendment. This Agreement may be amended, supplemented or
               ---------
modified only by a written instrument duly executed by or on behalf of each
party hereto.

          6.5  No Third Party Beneficiary. The terms and provisions of this
               --------------------------
Agreement are intended solely for the benefit of each party hereto and their
respective successors or permitted assigns, and it is not the intention of the
parties to confer third-party beneficiary rights upon any other Person other
than any Person entitled to indemnity under Section 6.5.
                                            -----------

          6.6  No Assignment; Binding Effect. Neither this Agreement nor any
               -------------
right, interest or obligation hereunder may be assigned by the Stockholder
without COMPS prior written consent and any attempt to do so will be void. COMPS
may assign any right, interest or obligation hereunder to any affiliate or
subsidiary, without COMPS consent, upon five (5) days notice thereof as provided
in Section 6.1. This Agreement is binding upon, inures to the benefit of and is
   -----------
enforceable by the parties hereto and their respective permitted successors and
assigns.

                                     -31-
<PAGE>

          6.7   Headings. The headings used in this Agreement have been inserted
                --------
for convenience of reference only and do not define or limit the provisions
hereof.

          6.8   Severability. If any provision of this Agreement is held to be
                ------------
illegal, invalid or unenforceable under any present or future law, and if the
rights or obligations of any party hereto under this Agreement will not be
materially and adversely affected thereby, (i) such provision will be fully
severable, (ii) this Agreement will be construed and enforced as if such
illegal, invalid or unenforceable provision had never comprised a part hereof,
(iii) the remaining provisions of this Agreement will remain in full force and
effect and will not be affected by the illegal, invalid or unenforceable
provision or by its severance herefrom and (iv) in lieu of such illegal, invalid
or unenforceable provision, there will be added automatically as a part of this
Agreement a legal, valid and enforceable provision as similar in terms to such
illegal, invalid or unenforceable provision as may be possible and mutually
acceptable to the parties herein.

          6.9  Governing Law. This Agreement shall be governed by and construed
               -------------
in accordance with the laws of the State of Texas applicable to contracts
executed and performed in such State, without giving effect to conflicts of laws
principles.

          6.10  Arbitration and Venue. Any controversy or claim arising out of
                ---------------------
or relating to this Agreement or the making, performance or interpretation
thereof shall be submitted to arbitration in San Diego, pursuant to the rules
and procedures of the American Arbitration Association before a panel of three
arbitrators. The ruling of a majority of the arbitrators shall be final, and
judgment thereon may be entered in any court having jurisdiction. If any
question is submitted to a court of law for resolution, then the Superior Court
of the County of San Diego or the United States District Court having
jurisdiction in the County of San Diego shall be the exclusive court of
competent jurisdiction for the resolution of such question. Each party will bear
one half of the cost of the arbitration filing and hearing fees, and the cost of
the mutually agreed upon arbitrator. Each party will bear its own arbitrator and
attorneys' fees, unless otherwise decided by the arbitrator. The parties
understand and agree that the arbitration shall be instead of any civil
litigation and that the arbitrator panel's decision shall be final and binding
to the fullest extent permitted by law and enforceable by any court having
jurisdiction thereof. Each party shall be entitled to pre-hearing discovery as
provided in California Code of Civil Procedure Section 1283.05.

          6.11  Consent to Jurisdiction and Forum Selection. The parties hereto
                -------------------------------------------
agree that all actions or proceedings arising in connection with this Agreement
shall be initiated and tried exclusively in the State and Federal courts located
in the County of San Diego, State of California. The aforementioned choice of
venue is intended by the parties to be mandatory and not permissive in nature,
thereby precluding the possibility of litigation between the parties with
respect to or arising out of this Agreement in any jurisdiction other than that
specified in this Section 6.11. Each party hereby waives any right it may have
                  ------------
to assert the doctrine of forum non conveniens or similar doctrine or to object
to venue with respect to any proceeding brought in accordance with this
paragraph, and stipulates that the State and Federal courts located in the
County of San Diego, State of California shall have in personam jurisdiction and
venue over each of them for the purposes of litigating any dispute, controversy
or proceeding arising out of or related to this Agreement. Each party hereby
authorizes and accepts service of process sufficient for personal jurisdiction
in any action against it as contemplated by this Section 6.11
                                                 ------------

                                     -32-
<PAGE>

by registered or certified mail, return receipt requested, postage prepaid, to
its address for the giving of notices as set forth in this Agreement, or in the
manner set forth in Section 6.1 of this Agreement for the giving of notice. Any
                    -----------
final judgment rendered against a party in any action or proceeding shall be
conclusive as to the subject of such final judgment and may be enforced in other
jurisdictions in any manner provided by law.

          6.12  Expense. Except as otherwise provided in this Agreement, the
                -------
Stockholder and COMPS shall pay their own expenses and costs incidental to the
preparation of this Agreement and to the consummation of the transactions
contemplated hereby.

          6.13  Construction. No provision of this Agreement shall be construed
                ------------
in favor of or against any party on the ground that such party or its counsel
drafted the provision. Any remedies provided for herein are not exclusive of any
other lawful remedies which may be available to either party. This Agreement
shall at all times be construed so as to carry out the purposes stated herein.

          6.14  Counterparts. This Agreement may be executed in any number of
                ------------
counterparts and by facsimile, each of which will be deemed an original, but all
of which together will constitute one and the same instrument.


                          [SIGNATURE PAGES TO FOLLOW]

                                     -33-
<PAGE>

          IN WITNESS WHEREOF, this Agreement has been duly executed and
delivered by the parties hereto, or their duly authorized officer, as of the
date first above written.


                         COMPS.COM, INC.,
                         a Delaware corporation


                         By:  /s/ CHRIS FENTON
                            ----------------------------------------

                         Name:  Chris Fenton
                              --------------------------------------

                         Title:  Vice President
                                ------------------------------------


                         PARRAMORE, INC.,
                         a Texas corporation

                         By:  /s/ ELLIOT P. FLICK
                            ----------------------------------------

                         Name:  Elliot P. Flick
                              --------------------------------------

                         Title: President
                               -------------------------------------


                         STOCKHOLDER:

                         /s/ ELLIOT P. FLICK
                         -------------------------------------------
                         Elliott P. Flick


               [Signature Page to the Stock Purchase Agreement]

<PAGE>

                                                                     EXHIBIT 2.3

- --------------------------------------------------------------------------------

                           ASSET PURCHASE AGREEMENT

                                 by and among

                               COMPS.COM, INC.,

                                      and

                                ARA-D/FW, INC.

                                      and

                          AMERICAN REALTY, INC.

                             dated August 27, 1999


- --------------------------------------------------------------------------------
<PAGE>

                               TABLE OF CONTENTS

<TABLE>
<CAPTION>
                                                                      Page
                                                                      ----
<S>                                                                   <C>
ARTICLE I DEFINITIONS...............................................     1
     1.1   Defined Terms............................................     1
     1.2   Construction of Certain Terms and Phrases................     6

ARTICLE II PURCHASE AND SALE OF PURCHASED ASSETS....................     7
     2.1   Purchase and Sale of the Company's Assets................     7
     2.2   Excluded Assets..........................................     8
     2.3   Assumed Liabilities......................................     8
     2.4   Purchase Price...........................................     9
     2.5   Allocation of Aggregate Purchase Price...................    10
     2.6   Sales, Use and Other Taxes...............................    10
     2.7   Title....................................................    10
     2.8   [Reserved]...............................................    10
     2.9   Private Placement........................................    10
     2.10  Closing..................................................    10

ARTICLE III REPRESENTATIONS AND WARRANTIES OF SELLERS...............    12
     3.1   Organization of the Company..............................    13
     3.2   Capital Stock of the Company.............................    13
     3.3   Authority of the Company.................................    13
     3.4   Authority of Stockholder.................................    13
     3.5   No Affiliates............................................    13
     3.6   No Conflicts.............................................    13
     3.7   Governmental Approvals and Filings.......................    14
     3.8   Books and Records........................................    14
     3.9   Financial Statements.....................................    14
     3.10  Absence of Changes.......................................    14
     3.11  No Undisclosed Liabilities...............................    16
     3.12  Purchased Assets.........................................    16
     3.13  Intellectual Property Rights.............................    17
     3.14  Proprietary Information of Third Parties.................    17
     3.15  Litigation...............................................    18
     3.16  Compliance with Law......................................    18
     3.17  Contracts................................................    18
     3.18  Tax Matters..............................................    18
     3.19  Real Property............................................    19
     3.20  Environmental and Occupational Health Matters............    19
     3.21  Equipment................................................    19
</TABLE>

                                      (i)
<PAGE>

<TABLE>
     <S>                                                              <C>
     3.22  Accounts Receivable......................................  19
     3.23  Permits..................................................  19
     3.24  Benefit Plans............................................  19
     3.25  Labor and Employment Relations...........................  20
     3.26  Certain Employees........................................  20
     3.27  Insurance................................................  20
     3.28  Necessary Property.......................................  20
     3.29  Customers................................................  20
     3.30  Third Party Consents.....................................  21
     3.31  Brokers..................................................  21
     3.32  Year 2000 Compliance.....................................  21
     3.33  Assignment of Company Revenue............................  21
     3.34  Investment Representations...............................  21
     3.35  Net Assets...............................................  22
     3.36  Operating Profit.........................................  22
     3.37  Post-Closing Subscription and Serving Hosting
           Obligations..............................................
     3.38  Material Misstatements and Omissions.....................  22

ARTICLE IV REPRESENTATIONS AND WARRANTIES OF COMPS..................  23
     4.1   Organization of COMPS....................................  23
     4.2   Authority of COMPS.......................................  23
     4.3   COMPS SEC Filings........................................  23

ARTICLE V ACTIONS BY THE PARTIES AFTER THE CLOSING..................  24
     5.1   Survival of Representations, Warranties, Etc.............  24
     5.2   Indemnification..........................................  24
     5.3   Offset...................................................  26
     5.4   Further Assurances.......................................  27
     5.5   Restricted Securities....................................  27
     5.6   Post-Closing Subscription and Server Hosting Covenants...  29

ARTICLE VI MISCELLANEOUS............................................  29
     6.1   Notices..................................................  29
     6.2   Entire Agreement.........................................  30
     6.3   Waiver...................................................  31
     6.4   Amendment................................................  31
     6.5   No Third Party Beneficiary...............................  31
     6.6   No Assignment; Binding Effect............................  31
     6.7   Headings.................................................  31
     6.8   Severability.............................................  31
     6.9   Governing Law............................................  31
     6.10  Arbitration and Venue....................................  31
     6.11  Consent to Jurisdiction and Forum Selection..............  32
</TABLE>

                                     (ii)
<PAGE>

<TABLE>
     <S>                                                              <C>
     6.12  Expense..................................................  32
     6.13  Construction.............................................  32
     6.14  Counterparts.............................................  32
</TABLE>

                                     (iii)
<PAGE>

                             EXHIBITS AND SCHEDULES

Exhibits
- --------

EXHIBIT A  ARA-D/FW Promissory Note
EXHIBIT B  Software Purchase Promissory Note
EXHIBIT C  Bill of Sale
EXHIBIT D  General Assignment
EXHIBIT E  Consent to Assignment
EXHIBIT F  Intellectual Property Assignment
EXHIBIT G  Non-Competition Agreements
EXHIBIT H  Independent Contractor Agreements
EXHIBIT J  Company Officer's Certificate
EXHIBIT K  Company Secretary's Certificate
EXHIBIT L  COMPS Officer's Certificate


Schedules
- ---------

SCHEDULE 2.1(b)   Company Customer Lists and Accounts
SCHEDULE 2.1(c)   Company Assumed Contracts
SCHEDULE 2.1(e)   Company Intellectual Property
SCHEDULE 2.1(f)   Company Permits
SCHEDULE 2.1(g)   Operating Assets
SCHEDULE 2.1(h)   Company Accounts Receivable
SCHEDULE 2.2      Excluded Assets
SCHEDULE 2.5      Allocation of Aggregate Purchase Price
DISCLOSURE SCHEDULE

                                     (iv)
<PAGE>

                           ASSET PURCHASE AGREEMENT

     This Asset Purchase Agreement (this "Agreement") is made and entered into
as of August 27, 1999, by and among COMPS.COM, INC., a Delaware corporation
("COMPS"), ARA-D/FW, Inc., a Texas corporation (the "Company"), and American
Realty, Inc., a Texas corporation and the Company's sole stockholder
(the "Stockholder" and together with the Company, "Sellers").

                                    RECITALS
                                    --------

     WHEREAS, the Stockholder owns all of the issued and outstanding capital
stock of the Company, consisting of One Thousand (1,000) shares of common stock,
no par value per share (the "Company Stock");

     WHEREAS, the Company is in the business of operating the CBN (the
"Business");

     WHEREAS, the Company is a party to that certain joint venture with Sendero
Investments, Inc. ("Sendero") in the operation of the Business and as a result
the Stockholder is willing to be parties to certain indemnification obligations
pertaining to the operation of the Business by Sendero as further described in
Article V below;
- ---------

     WHEREAS, Sellers desire to sell to COMPS, and COMPS desires to purchase
from Sellers, substantially all of the assets, properties and rights of the
Company that are related to the Business; and

     WHEREAS, COMPS and Sellers desire to make certain representations,
warranties, covenants and agreements in connection with such purchase and sale.

     NOW, THEREFORE, in consideration of the premises and the mutual covenants
and promises contained herein, and for other good and valuable consideration,
the receipt and sufficiency of which hereby are acknowledged, the parties agree
as follows:

                                   ARTICLE I

                                  DEFINITIONS

     1.1  Defined Terms. As used in this Agreement, the following defined terms
          -------------
have the meanings indicated below:

          "Actions or Proceedings" means any action, suit, proceeding,
arbitration, Order (as defined below), inquiry, hearing, assessment with respect
to fines or penalties or litigation (whether civil, criminal, administrative,
investigative or informal) commenced, brought, conducted or heard by or before,
or otherwise involving, any Governmental or Regulatory Authority (as defined
below).

                                      -1-
<PAGE>

          "Affiliate" means, with respect to any Person (as defined below),
another Person that directly, or indirectly through one or more intermediaries,
controls, is controlled by or is under common control with such Person.

          "ARA-D/FW" has the meaning set forth in the first (1st) paragraph.

          "Assets and Properties" and "Assets or Properties" of any Person each
means all assets and properties of every kind, nature, character and description
(whether real, personal or mixed, whether tangible or intangible, whether
absolute, accrued, contingent, fixed or otherwise and wherever situated),
including the goodwill related thereto, operated, owned or leased by such
Person, including, without limitation, cash, cash equivalents, accounts and
notes receivable, chattel paper, documents, instruments, general intangibles,
real estate, equipment, inventory, goods and Intellectual Property.

          "Assumed Liabilities" has the meaning set forth in Section 2.3(a).
                                                             --------------

          "Benefit Plan" means any Plan established, arranged or maintained by
the Company or any corporate group of which the Company is or was a member,
existing at the Closing Date or prior thereto, to which the Company contributes
or has contributed, or under which any employee, officer, director or former
employee, officer or director of the Company or any beneficiary thereof is
covered, is eligible for coverage or has benefit rights.

          "Books and Records" of any Person means all files, documents,
instruments, papers, books, computer files (including but not limited to files
stored on a computer's hard drive or on floppy disks), electronic files and
records in any other medium relating to the business, operations or condition of
such Person.

          "Business" has the meaning set forth in the first recital of this
Agreement.

          "Business Day" means a day other than Saturday, Sunday or any day on
which banks located in the State of California are authorized or obligated to
close.

          "Cash Purchase Price" has the meaning set forth in Section 2.4(a).
                                                             --------------

          "CBN" means the Commercial Network Brokers.  CBN is a comprehensive,
internet-delivered, interactive, commercial real estate research and listings
service subscribed to by members (those principally involved in the commercial
real estate business for their livelihood). At its core are county tax records
(containing ownership, legal descriptions, property tax valuations, physical
property descriptions, chain of ownership and occasionally some sales
information); For lease databases (containing building-specific information for
virtually the entire significant industry inventory of office buildings, retail
centers, industrial complexes and apartment projects, such as:  property name,
address, physical details, leasing details-including rental rates, terms,
conditions, space availability, occupancy rates, and leasing commission
structures, additional information on current property management, personnel and
management companies, leasing personnel and their companies, and ownership). For
Sales databases, Sales Comparables (derived from county tax appraisal district),
key contact information on the persons in the industry, a listing of Travis
County Personal Property Tax Records of county businesses - containing key
contact person, approximate size, type of business with address. Finally the CBN

                                      -2-
<PAGE>

Needs and Email Notification systems helps brokers identify specific properties
that meet their clients' needs

          "CBN Software" has the meaning set forth in Section 2.4(c).
                                                      --------------

          "Closing" has the meaning set forth in Section 2.10(a).
                                                 ---------------

          "Closing Date" means August 27, 1999.

          "Code" means the Internal Revenue Code of 1986, as amended.

          "Company" has the meaning set forth in the first paragraph of this
Agreement.

          "Company Accounts Receivable" has the meaning set forth in Section
                                                                     -------
2.1(h).
- ------

          "Company Assumed Contracts" has the meaning set forth in Section
                                                                   -------
2.1(c).
- ------

          "Company Customers Lists and Accounts" has the meaning set forth in

Section 2.1(b).
- --------------

          "Company Employees" has the meaning set forth in Section 2.3(b).
                                                           --------------

          "Company Intellectual Property" has the meaning set forth in Section
                                                                       -------
2.1(e).
- ------

          "Company Permits" has the meaning set forth in Section 2.1(f).
                                                         --------------

          "Company Records" has the meaning set forth in Section 2.1(d).
                                                         --------------

          "COMPS" has the meaning set forth in the first paragraph of this
Agreement.

          "COMPS SEC Filings" has the meaning set forth in Section 4.3.
                                                           -----------

          "Consent to Assignment" has the meaning set forth in Section
                                                               -------
2.10(b)(iv).
- -----------

          "Damages" has the meaning set forth in Section 5.2.
                                                 -----------

          "Defined Benefit Plan" means each Benefit Plan which is subject to
Part 3 of Title I of ERISA, Section 412 of the Code or Title IV of ERISA.

          "Disclosure Schedule" means the disclosure schedule attached hereto
which sets forth the exceptions to the representations and warranties contained
in Article 3 hereof and certain other information called for by this Agreement.
   ---------

          "Encumbrance" means any mortgage, pledge, assessment, security
interest, deed of trust, lease, lien, adverse claim, levy, charge or other
encumbrance of any kind, or any conditional sale or title retention agreement or
other agreement to give any of the foregoing in the future.

          "Environmental and Occupational Health Matters" has the meaning set
forth in Section 3.20.
         ------------

                                      -3-
<PAGE>

          "ERISA" means the Employee Retirement Income Security Act of 1974, as
amended, and the rules and regulations promulgated thereunder.

          "Exchange Act" means the Securities Exchange Act of 1934, as amended.

          "Excluded Assets" has the meaning set forth in Section 2.2.
                                                         -----------

          "Financial Statements" means (i) the audited balance sheets and
related audited statements of income and retained earnings of the Company for
the fiscal year ended on December 31, 1998 together with the notes thereto and
the related reports of Spranse & Winn LLP or Calhoun & Co., the Company's
independent certified public accountants, and (ii) the Interim Financial
Statements (as defined below) for the Company.

          "GAAP" means generally accepted accounting principles, applied in a
manner consistent with the past practices of the Company.

          "General Assignment" has the meaning set forth in Section
                                                            -------
2.10(b)(iii).

          "Governmental or Regulatory Authority" means any court, tribunal,
arbitrator, authority, agency, commission, official or other instrumentality of
the United States or other country, any state, county, city or other political
subdivision.

          "Holdback Amount" has the meaning set forth in Section 2.4(d).
                                                         --------------

          "Independent Contractor Agreement" has the meaning set forth in
Section 2.5(b)(vii);
- --------------------

          "Intellectual Property" means (i) inventions (whether patentable or
unpatentable and whether or not reduced to practice), all improvements thereto,
and all patents, patent applications and patent disclosures, together with all
reissuances, continuations, continuations-in-part, revisions, extensions and
reexaminations thereof; (ii) trademarks, service marks, trade dress, logos,
trade names and corporate names, together with all translations, adaptations,
derivations and combinations thereof and including all goodwill associated
therewith, and all applications, registrations and renewals in connection
therewith, copyrightable works, all copyrights and all applications,
registrations and renewals in connection therewith; (iii) mask works and all
applications, registrations and renewals in connection therewith; (iv) trade
secrets and confidential business information (including product specifications,
data, know-how, formulae, compositions, processes, designs, sketches,
photographs, graphs, drawings, samples, inventions and ideas, past, current
research and development, current research and distribution methodologies and
processes, customer lists, current and anticipated customer requirements, price
lists, market studies, business plans), however documented; (v) proprietary
computer software and programs (including object code and source code) and other
proprietary rights and copies and tangible embodiments thereof (in whatever form
or medium); (vi) database technologies, systems, structures and architectures
(and related processes, formulae, compositions, improvements, devices, know-how,
inventions, discoveries, concepts, ideas, designs, methods and information) and
any other related information, however, documented; (vii) any and all
information concerning the business and affairs of a Person (which includes
historical financial statements, financial projections and budgets, historical
and projected sales,

                                      -4-
<PAGE>

capital spending budgets and plans, the names and backgrounds of key personnel
and personnel training and techniques and materials), however documented; (viii)
any and all notes, analysis, compilations, studies, summaries, and other
material prepared by or for a Person containing or based, in whole or in part,
on any information included in the foregoing, however documented; (ix) all
industrial designs and any registrations and applications therefor; (x) all
databases and data collections and all rights therein; and (xi) any similar or
equivalent rights to any of the foregoing anywhere in the world related to the
Business.

          "Intellectual Property Assignment" has the meaning set forth in
Section 2.10(b)(v).
- ------------------

          "Interim Financial Statements" means the unaudited balance sheet for
the five (5)-month period ended May 31, 1999 and the related unaudited statement
of income and retained earnings for the Company each case for the six (6)-month
period ended June 30, 1999.

          "Knowledge of Sellers" or "Known to Sellers" means the knowledge of
the Stockholder, the Company or any officer or director of the Company, in each
case after due inquiry and comprehensive investigation.

          "Liabilities" means any liability (whether known or unknown, whether
asserted, or unasserted, whether absolute or contingent, whether accrued or
unaccrued, whether liquidated or unliquidated, and whether due or to become
due), including but not limited to any liability for Taxes (as defined below).

          "Material Adverse Effect" means, for any Person, a material adverse
effect whether individually or in the aggregate (i) on the business, operations,
financial condition, Assets and Properties, Liabilities or prospects of such
Person, or (ii) on the ability of such Person to consummate the transactions
contemplated hereby.

          "Non-Competition Agreements" has the meaning set forth in Section
                                                                    -------
2.10(b)(vi).
- -----------

          "Order" means any writ, judgment, decree, injunction or similar order
of any Governmental or Regulatory Authority (in each such case whether
preliminary or final).

          "Ordinary Course of Business" means the action of a Person that is
consistent with the past practices of such Person and is taken in the ordinary
course of the normal day-to-day operations of such Person.

          "Permits" means all licenses, permits, certificates of authority,
authorizations, approvals, registrations and similar consents granted or issued
by any Governmental or Regulatory Authority.

          "Permitted Encumbrance" means (i) any Encumbrance for taxes not yet
due or delinquent or being contested in good faith by appropriate proceedings
for which adequate reserves have been established in accordance with GAAP and
(ii) any minor imperfection of title or similar Encumbrance which individually
or in the aggregate with other such Encumbrances does not impair the value of
the property subject to such Encumbrance or the use of such property in the
conduct of the Business.

                                      -5-
<PAGE>

          "Person" means any natural person, corporation, general partnership,
limited partnership, limited liability company, proprietorship, other business
organization, trust, union, association or Governmental or Regulatory Authority.

          "Plan" means any bonus, incentive compensation, deferred compensation,
pension, profit sharing, retirement, stock purchase, stock option, stock
ownership, stock appreciation rights, phantom stock, leave of absence, layoff,
vacation, day or dependent care, legal services, cafeteria, life, health,
accident, disability, workers' compensation or other insurance, severance,
separation or other employee benefit plan, practice, policy or arrangement of
any kind, whether written or oral, including, but not limited to, any "employee
benefit plan" within the meaning of Section 3(3) of ERISA.

          "Purchase Price" has the meaning set forth in Section 2.4.
                                                        -----------

          "Real Property" has the meaning set forth in Section 3.19.
                                                       ------------

          "SEC" means the United States Securities and Exchange Commission, or
any successor entity.

          "Securities Act" means the Securities Act of 1933, as amended.

          "Sendero" has the meaning set forth in the third recital.

          "Sellers" has the meaning set forth in the first paragraph of this
Agreement.

          "Stockholder" has the meaning set forth in the first paragraph of this
Agreement.

          "Tax" (and, with correlative meaning, "Taxes," "Taxable" and "Taxing")
means (i) any federal, state, local or foreign income, alternative or add-on
minimum tax, gross income, gross receipts, sales, use, ad valorem, transfer,
franchise, profits, license, withholding, payroll, employment, excise,
severance, stamp, occupation, premium, property, environmental or windfall
profit tax, custom, duty or other tax, governmental fee or other like assessment
or charge of any kind whatsoever, together with any interest or any penalty,
addition to tax or additional amount imposed by any Governmental or Regulatory
Authority responsible for the imposition of any such tax (domestic or foreign),
(ii) any Liability for payment of any amounts of the type described in (i) as a
result of being a member of an affiliated, consolidated, combined, unitary or
other group for any Taxable period and (iii) any Liability for the payment of
any amounts of the type described in (i) or (ii) as a result of any express or
implied obligation to indemnify any other person.

          "Tax Return" means any return, report, information return, schedule or
other document (including any related or supporting information) filed or
required to be filed with respect to any taxing authority with respect to Taxes.

          "Total Capital" has the meaning set forth in Section 3.35.
                                                       ------------

     1.2  Construction of Certain Terms and Phrases. Unless the context of this
          -----------------------------------------
Agreement otherwise requires, (a) words of any gender include each other gender;
(b) words using the singular or plural number also include the plural or
singular number, respectively;

                                      -6-
<PAGE>

(c) the terms "hereof," "herein," "hereby" and derivative or similar words refer
to this entire Agreement; (d) the terms "Article" or "Section" refer to the
specified Article or Section of this Agreement; (e) the term "or" has, except
where otherwise indicated, the inclusive meaning represented by the phrase
"and/or"; and (f) the term "including" means "including without limitation."
Whenever this Agreement refers to a number of days, such number shall refer to
calendar days unless Business Days are specified. All accounting terms used
herein and not expressly defined herein shall have the meanings given to them
under GAAP.

                                  ARTICLE II

                     PURCHASE AND SALE OF PURCHASED ASSETS
                     -------------------------------------

     2.1  Purchase and Sale of the Company's Assets. Subject to the terms and
          -----------------------------------------
conditions of this Agreement, at the Closing, Sellers agree to grant, sell,
convey, assign, transfer and deliver to COMPS, and COMPS agrees to purchase and
acquire from Sellers, free and clear of any Encumbrance or adverse claim of any
kind whatsoever, all of the Company's right, title, and interest in and to the
Assets and Properties of the Company wherever located and whether or not
specifically referred to in this Agreement, that are used in or pertain to the
operations of the Business (the "Purchased Assets"), including without
limitation:

          (a)  the historical database and other databases of the Company, in
electronic and hard copy form, including, without limitation, plat maps,
photographs, and sales comparable data, owned or licensed by the Company and
used in the Business;

          (b)  all former and current customer lists and databases, mailing
lists, telephone numbers, correspondence, vendor lists and customer accounts of
the Company set forth in Schedule 2.1(b) attached hereto (the "Company
                         ---------------
Customer Lists and Accounts");

          (c)  all of the Company's right, title and interest in and to the
subscriptions, contracts and agreements pertaining to the Business, as set forth
in Schedule 2.1(c) attached hereto (and to the extent oral, accurately described
   ---------------
in Schedule 2.1(c)) (the "Company Assumed Contracts");
   ---------------

          (d)  all the Books and Records of the Company relating to the
Business, including without limitation, operating data, the data collection
methodology, sales and other literatures, files and documents relating to the
Business (the "Company Records");

          (e)  all right, title and interest in and to all Intellectual Property
relating, directly or indirectly to the Company, the Business or the Purchased
Assets that is owned by or held by, or on behalf of the Company, or licensed to,
the Company, including, without limitation, (i) the name "Commercial Broker's
Network" and all variations thereof, (ii) the CBN Software and (iii) the
Intellectual Property set forth on Schedule 2.1(e) attached hereto and all
                                   ---------------
improvements, modifications and other Intellectual Property derived therefrom
(collectively, the "Company Intellectual Property");

                                      -7-
<PAGE>

          (f)  all licenses, permits, consents, approvals, orders, certificates,
authorizations, declarations and filings held by the Company necessary or
incidental to the conduct of the Business as set forth in Schedule 2.1(f)
                                                          ---------------
attached hereto (the "Company Permits");

          (g)  all equipment, leasehold improvements, furniture and fixtures,
vehicles and other operating assets owned or leased by the Company and used in
the Business, including, without limitation, those set forth in Schedule 2.1(g)
                                                                ---------------
attached hereto;

          (h)  all accounts, accounts receivable, notes and notes receivable of
the Company related to the Business (collectively the "Company Accounts
Receivable") as of the Closing Date, including without limitation (a) those
Company Accounts Receivables which are not evidenced by instruments or invoices,
whether or not they have been earned by performance or have been written off or
reserved against as a bad debt or doubtful account, together with all
instruments and (b) all documents of title representing any of the foregoing and
all right, title, security and guaranties in favor of the Company with respect
to any of the foregoing, as identified in Schedule 2.1(h) attached hereto;
                                          ---------------

          (i)  all cash and cash equivalents of the Company related to the
Business;

          (j)  all prepaid expenses, deposits and deferred items in effect
related to the Business as of the Closing Date and from which COMPS may derive
future benefit; and

          (k)  the goodwill and going concern value of the Company related to
the Business.

     2.2  Excluded Assets. Notwithstanding Section 2.1 hereof, the Purchased
          ---------------                  -----------
Assets do not include the assets set forth on Schedule 2.2 attached hereto (the
                                              ------------
"Excluded Assets").

     2.3  Assumed Liabilities.
          -------------------

          (a)  COMPS agrees to assume, satisfy and perform when due only those
liabilities arising from the liabilities and obligations of the Company under
the Purchased Assets which arise in the Ordinary Course of Business on or after
the Closing Date and up to One Hundred Thousand Dollars ($100,000) of the
outstanding subscription liability of the Business as of the Closing Date
(collectively, the "Assumed Liabilities").

          (b)  Other than the Assumed Liabilities, COMPS is not required to, and
shall not assume, pay, perform, defend, discharge or guarantee or be deemed to
have assumed, paid, performed, defended or discharged or guaranteed, or
otherwise be responsible for any Liability, obligation or claim of any nature of
the Company or the Business, whether matured or unmatured, liquidated or
unliquidated, fixed or contingent, known or unknown, or whether arising out of
acts or occurrences prior to, at or after the date hereof. Without limiting the
generality of the foregoing, Sellers shall remain liable for the payment of all
Liabilities, obligations or claims to personnel employed by the Company (the
"Company Employees") with respect to the notice and continuation coverage
requirement of Section 4980B(e) of the Code and regulations thereunder for all
Company Employees whose employment is terminated for whatever reason prior to
the Closing, for all Company Employees who terminated employment prior to the
Closing, payroll, overtime, accrued vacation time, holiday time, severance

                                      -8-
<PAGE>

arrangements or worker's compensation of any nature which are accrued but unpaid
as of the Closing Date or which accrued as a result of the consummation of the
transactions contemplated herein.

     2.4  Purchase Price. Subject to the terms and conditions in this Agreement,
          --------------
as consideration for the Purchased Assets, COMPS agrees to pay, or cause to be
paid, to the Company an aggregate purchase price of Eight Hundred Eighty Nine
Thousand Six Hundred Ninety Two Dollars ($889,692) (the "Purchase Price"),
payable in the following manner:

          (a)  At the Closing, COMPS shall pay to the Company the sum of Two
Hundred Seventy-Two Thousand Six Hundred Twenty-Six Dollars and Twenty Cents
($272,626.20) by wire transfer in immediately available funds to an account
designated by the Company (the "Cash Purchase Price").

          (b)  At the Closing, COMPS shall execute and deliver to the Company a
subordinated convertible note (the "ARA-D/FW Promissory Note") substantially in
the form of Exhibit A attached hereto, in the aggregate amount of Four Hundred
            ---------
Ninety-SevenThousand Sixty Five Dollars and Eighty Cents ($497,065.80) (the
"ARA-D/FW Note Purchase Price"), payable in monthly installments of interest
only and semi-annual installments of principal commencing one month after the
Closing and continuing for forty-eight (48) consecutive months at which time the
full balance of the principal and interest will be due and payable. The final
maturity date of the ARA-D/FW Promissory Note shall be the forty-eighth (48)
month after the Closing Date (the "ARA-D/FW Promissory Note Term"). The ARA-D/FW
Promissory Note shall bear interest at a rate of eight percent (8%) per annum.
Subject to the terms and conditions of the ARA-D/FW Promissory Note, in the
event that (i) COMPS defaults under the terms of the ARA-D/FW Promissory Note as
a result of its failure to make timely payments or (ii) COMPS' Net Worth is less
than Ten Million Dollars ($10,000,000) at any time during the ARA-D/FW
Promissory Note Term, (a "Default Event"), the outstanding balance of the
principal and accrued interest due on the ARA-D/FW Promissory Note may be
convertible into the common stock of COMPS ("COMPS Common Stock") during the
period in which the Default Event has not been cured. The number of shares of
COMPS Common Stock issuable upon such a conversion shall equal (i) the
outstanding balance of the principal and accrued interest due on the Promissory
Note at the time of conversion, divided by (ii) the average of the closing
prices of a share of COMPS Common Stock on the Nasdaq National Market for thirty
(30) consecutive trading days ending on the trading day immediately preceding
the day of the Default Event prior to issuance of the stock.

          (c)  At the Closing, in consideration for that part of the Purchased
Assets constituting the proprietary software used to operate the CBN (the "CBN
Software"), COMPS shall execute and deliver to Seller a subordinated note (the
"Software Purchase Promissory Note") substantially in the form of Exhibit B
                                                                  ---------
attached hereto, in the aggregate amount of One Hundred Twenty Thousand Dollars
($120,000.00) (the "Software Note Purchase Price"), payable in two semi-annual
installments of interest and principal with the first payment due six (6) months
after the Closing and the second and final payment due twelve (12) months after
the Closing. The Software Purchase Promissory Note shall bear interest at a rate
of eight percent (8%) per annum. Subject to the terms and conditions of the
Software Purchase Promissory Note, in the event that (i) COMPS defaults under
the terms of the Software Purchase Promissory Note as a result of its failure to
make timely payments or (ii) COMPS' Net Worth is less than Ten

                                      -9-
<PAGE>

Million Dollars ($10,000,000) at any time during the Software Purchase
Promissory Note Term, (a "Default Event"), the outstanding balance of the
principal and accrued interest due on the Software Purchase Promissory Note may
be convertible into the common stock of COMPS ("COMPS Common Stock") during the
period in which the Default Event has not been cured. The number of shares of
COMPS Common Stock issuable upon such a conversion shall equal (i) the
outstanding balance of the principal and accrued interest due on the Software
Purchase Promissory Note at the time of conversion, divided by (ii) the average
of the closing prices of a share of COMPS Common Stock on the Nasdaq National
Market for thirty (30) consecutive trading days ending on the trading day
immediately preceding the day of the Default Event prior to issuance of the
stock.

          (d)  At and after the Closing, COMPS shall withhold up to Three
Hundred Eighty Four Thousand Eight Hundred Forty Six Dollars ($384,846) of
installments of the ARA-D/FW Note Purchase Price otherwise due under the ARA-
D/FW Promissory Note as a holdback for any indemnity claims that COMPS may have
hereunder (the "Holdback Amount"). Subject to the indemnification obligations of
Sellers in Sections 5.2 and 5.3 below, the Holdback Amount shall be paid to the
           --------------------
Company eighteen (18) months after the Closing Date.

     2.5  Allocation of Aggregate Purchase Price. The Purchase Price shall be
          --------------------------------------
allocated among the Purchased Assets as set forth on Schedule 2.5 attached
                                                     ------------
hereto which allocation shall be in compliance with Section 1060 of the Code.
COMPS and Sellers agree (i) to report the sale of the Purchased Assets for
federal and state Tax purposes in accordance with the allocations set forth on
Schedule 2.5 and (ii) not to take any position inconsistent with such
- ------------
allocations on any of their respective Tax Returns. Schedule 2.5 shall be
                                                    ------------
delivered by COMPS within thirty (30) days after the completion of its next
audited financial statements.

     2.6  Sales, Use and Other Taxes. Sellers shall be responsible for all sales
          --------------------------
and use Taxes, if any, arising out of the sale of the Purchased Assets to COMPS
pursuant to this Agreement.

     2.7  Title. Title to the Purchased Assets shall pass to COMPS at the
          -----
Closing and the Purchased Assets shall be at the risk of the Sellers prior to
the Closing.

     2.8  [Reserved]
          ----------

     2.9  Private Placement. The ARA-D/FW Promissory Note and the COMPS Common
          -----------------
Stock issuable under the ARA-D/FW Promissory Note (collectively, the "COMPS
Securities") will be exempt from registration requirements of the Securities Act
pursuant to the private placement exemption provided by Rule 505 and/or 506 of
Regulation D promulgated under the Securities Act and/or Section 4(2) of the
Securities Act and applicable state securities laws. Seller hereby agrees to
take all actions and execute all subscription and other documents to qualify
issuance of the COMPS Securities for such exemptions in the event that COMPS
Common Stock is issuable under the terms of the ARA-D/FW Promissory Note.

     2.10 Closing.
          -------

          (a)  Time and Place. The consummation of the purchase and sale of the
               --------------
Purchased Assets under this Agreement (the "Closing") shall take place at the
offices of

                                     -10-
<PAGE>

Brobeck, Phleger & Harrison LLP, San Diego, California at 10:00 a.m. on the
Closing Date, or at such time and in such manner as the parties mutually agree.

          (b)  Closing Deliveries By Sellers. At the Closing, Sellers shall have
               -----------------------------
delivered or caused to be delivered to COMPS:

               (i)    possession of all of the Purchased Assets, together will
                      all files and Books and Records relating to the Purchased
                      Assets;

               (ii)   a Bill of Sale substantially in the form of Exhibit C
                                                                  ---------
                      attached hereto, conveying good and marketable title in
                      all of the Purchased Assets, duly executed by Sellers;

               (iii)  an Assignment and Assumption Agreement by and among COMPS
                      and Sellers substantially in the form of Exhibit D
                                                               ---------
                      attached hereto (the "General Assignment"), duly executed
                      by Sellers;

               (iv)   a Consent to Assignment of Contract by and between the
                      Company and the Person other than the Company who is party
                      to the Assumed Contract being assigned to COMPS,
                      substantially in the form of Exhibit E attached hereto
                                                   ---------
                      (the "Consent to Assignment"), duly executed by the
                      Company and each such other Person who is a party to the
                      Assumed Contract;

               (v)    an Intellectual Property Assignment of all of the Company
                      Intellectual Property by and between COMPS and the
                      Company, substantially in the form of Exhibit F attached
                                                            ---------
                      hereto (the "Intellectual Property Assignment"), duly
                      executed by the Company;


               (vi)   the Non-Competition Agreements by and between COMPS and
                      each of the Company, the Stockholder and Bruce Brooks,
                      respectively, substantially in the form of Exhibit G
                                                                 ---------
                      attached hereto, (the "Non-Competition Agreements") duly
                      executed by the Company, the Stockholder and Bruce Brooks,
                      respectively;

               (vii)  Independent Contractor Agreements by and between COMPS and
                      each of Elliott Flick and Bruce Brooks, respectively,
                      substantially in the form of Exhibit H attached hereto
                                                   ---------
                      (the "Independent Contractor Agreements"), duly executed
                      by each of Elliott Flick and Bruce Brooks, respectively;


               (viii) a certificate of an officer of the Company and of the
                      Stockholder, substantially in the form of Exhibit I
                                                                ---------
                      attached hereto, duly executed by the officer of the
                      Company and the Stockholder;

               (ix)   a certificate of the Secretary of the Company
                      substantially in the form of Exhibit J attached hereto,
                                                   ---------
                      certifying as of the Closing Date (A) a true and complete
                      copy of the organizational documents of

                                     -11-
<PAGE>

                      the Company certified as of a recent date by the Secretary
                      of State of Texas, (B) a certificate of each appropriate
                      Secretary of State certifying the account status and
                      existence of the Company in its state of incorporation and
                      all states in which it is qualified to do business, (C) a
                      true and complete copy of the resolutions of the board of
                      directors of the Company and resolutions of the
                      stockholders of the Company authorizing the execution,
                      delivery and performance of this Agreement by the Company
                      and the consummation of the transactions contemplated
                      hereby and (D) incumbency matters; and

              (x)     such other documents as COMPS may reasonably request for
                      the purpose of facilitating the consummation of the
                      transactions contemplated herein

         (c)  Closing Deliveries By COMPS. COMPS shall have delivered or caused
              ---------------------------
to be delivered to Sellers:

              (i)    the Cash Purchase Price to the Company;

              (ii)   the ARA-D/FW Promissory Note, duly executed by COMPS;

              (iii)  the Software Purchase Promissory Note, duly executed by
                     COMPS;

              (iv)   the General Assignment, duly executed by COMPS;

              (v)    the Consent to Assignment, duly executed by COMPS;

              (vi)   the Intellectual Property Assignment, duly executed by
                     COMPS

              (vii)  the Non-Competition Agreements, duly executed by COMPS;

              (viii) a certificate of an officer of COMPS, substantially in
                     the form of Exhibit K attached hereto, duly executed
                                 ---------
                     by COMPS; and

              (ix)   the Independent Contractor Agreements, duly executed by
                     COMPS.


                                  ARTICLE III

                   REPRESENTATIONS AND WARRANTIES OF SELLERS
                   -----------------------------------------

     Each Seller, jointly and severally, represents and warrants to COMPS as of
the Closing, except as set forth in the Disclosure Schedule furnished to COMPS,
specifically identifying the relevant section hereof, which exceptions shall be
deemed to be representations and warranties as if made hereunder (provided that
the disclosure in such exceptions shall be true, complete and correct), as
follows:

                                     -12-
<PAGE>

     3.1  Organization of the Company. The Company is a corporation duly
          ---------------------------
organized, validly existing, and in good standing under the laws of the State of
Texas. The Company is duly authorized to conduct business and is in good
standing in each jurisdiction where such qualification is required except for
any jurisdiction where failure so to qualify would not have a Material Adverse
Effect upon the Company. The Company has full power and authority, and hold all
Permits and authorizations necessary to carry on the Business and to own and use
the Assets and Properties owned and used by the Company in the Business except
where the failure to have such power and authority or to hold such Permit or
authorization would not have a Material Adverse Effect on the Business. The
Company has delivered to COMPS correct and complete copies of its charter
documents and organizational documents, each as amended to date.

     3.2  Capital Stock of the Company. The authorized capital stock of the
          ----------------------------
Company consists of One Thousand (1000) shares of common stock, no par value, of
which One Thousand (1000) shares are issued and outstanding as of the date
hereof, and no shares in treasury. No preferred stock has been authorized or
issued. The Company's capital stock is duly authorized, validly issued, fully
paid and nonassessable. All such issued and outstanding shares of the Company
have been issued to the Stockholder.

     3.3  Authority of the Company. The Company has all necessary power and
          ------------------------
authority and has taken all actions necessary to own, lease and operate its
Assets and Properties and the Business as currently conducted and to enter into
this Agreement, to consummate the transactions contemplated hereby and to
perform its obligations hereunder, and no other proceedings on the part of the
Company are necessary to authorize this Agreement or to consummate the
transactions contemplated hereby. This Agreement has been duly and validly
executed and delivered by the Company and constitutes a legal, valid and binding
obligation of the Company enforceable against the Company in accordance with its
terms except (i) as limited by applicable bankruptcy, insolvency,
reorganization, moratorium and other laws of general application affecting
enforcement of creditors' rights generally and (ii) as limited by laws relating
to the availability of specific performance, injunctive relief or other
equitable remedies.

     3.4  Authority of Stockholder. Each Seller has all necessary power and
          ------------------------
authority and has taken all actions necessary to enter into this Agreement, to
consummate the transactions contemplated hereby and to perform her, his or its
obligations hereunder, and no other proceedings on the part of each Seller are
necessary to authorize this Agreement or to consummate the transactions
contemplated hereby. This Agreement has been duly and validly executed and
delivered by each Seller and constitutes a legal, valid and binding obligation
of each Seller enforceable against each Seller in accordance with its terms
except (i) as limited by applicable bankruptcy, insolvency, reorganization,
moratorium and other laws of general application affecting enforcement of
creditors' rights generally and (ii) as limited by laws relating to the
availability of specific performance, injunctive relief or other equitable
remedies.

     3.5  No Affiliates. The Company does not have any Affiliates and is not a
          -------------
partner in any partnership or a party to a joint venture except for the
Company's joint venture with Sendero.

     3.6  No Conflicts. The execution and delivery by Sellers of this Agreement
          ------------
does not, and the performance by Sellers of their respective obligations under
this Agreement and the

                                     -13-
<PAGE>

consummation of the transactions contemplated hereby will not (with or without
the lapse of time):

          (a)  conflict with or result in a violation or breach of any of the
terms, conditions or provisions of the charter documents, other organizational
documents or other documents, of the Company;

          (b)  conflict with or result in a violation or breach of any term or
provision of any law, Order, license, statute, rule or regulation applicable to
any Seller, the Business or the Purchased Assets;

          (c)  result in a breach of, or default under (or give rise to a right
of termination, cancellation or acceleration under) any of the terms, conditions
or provisions of any note, bond, mortgage, indenture, license, agreement, lease
or other similar instrument or obligation to which any of the Purchased Assets
may be bound; or

          (d)  result in an imposition of any Encumbrance on the Business or the
Purchased Assets.

     3.7  Governmental Approvals and Filings. Except as set forth in the
          ----------------------------------
Disclosure Schedule, no consent, approval or action of, filing with or notice to
any Governmental or Regulatory Authority, or any other Person or entity, on the
part of any Seller is required in connection with the execution, delivery and
performance of this Agreement or the consummation of the transactions
contemplated hereby.

     3.8  Books and Records. Company Records and all other Books and Records of
          -----------------
the Company related to the Business as made available by Sellers to COMPS are
true, correct and complete.

     3.9  Financial Statements. The Company has previously delivered to COMPS
          --------------------
the Financial Statements for the period ended December 31, 1997. The Company
will deliver its Financial Statements for the period ended December 31, 1998 and
for the six (6) month period ended June 30, 1999 within thirty (30) days after
the Closing Date. The Financial Statements (i) are or will be, as the cases may
be, true, correct and complete, (ii) are in accordance with the Company Records,
(iii) have been or will be, as the case may be, prepared in conformity with
GAAP, and (iv) fairly present the financial condition and results of operations
of the Company as of the respective dates thereof and for the periods covered
thereby; provided, that the Interim Financial Statements lack footnotes
         --------
and certain other presentation items.

     3.10  Absence of Changes. Since the end of the period covered by the
           ------------------
Interim Financial Statements and up to the Closing Date, Sellers have conducted
the Business only in the Ordinary Course of Business and there has not been any
adverse change in, or any event or development which, individually or together
with other such events, could reasonably be expected to result in a Material
Adverse Effect on the Company, the Business, any of the Purchased Assets.
Without limiting the generality of the foregoing, no event as described below
has occurred without the prior written consent of COMPS since the end of the
period covered by the Interim Financial Statements:

                                     -14-
<PAGE>

           (a)  the Company has not sold, leased, transferred or assigned any of
the Purchased Assets, tangible or intangible;

           (b)  the Company has not entered into any agreement, contract, lease
or license (or series of related agreements, contracts, leases and licenses)
involving the Company, the Business or the Purchased Assets either involving
more than $2,500 in any case, or $10,000 in the aggregate;

           (c)  the Company has not accelerated, terminated, modified or
cancelled any agreement, subscription, contract, lease or license (or series of
related agreements, contracts, leases and licenses) involving more than $2,500
in any case, or $10,000 in the aggregate, which involves the Company, the
Business or any Purchased Assets or by which the Company, the Business or any
Purchased Assets are bound;

           (d)  the Company has not granted any Encumbrance of any kind upon any
of the Purchased Assets, tangible or intangible;

           (e)  the Company has not made any capital expenditure (or series of
related capital expenditures) either involving more than $2,500 in any case, or
$10,000 in the aggregate;

           (f)  the Company has not made any capital investment in, any loan to
or any acquisition of the securities or assets of, any other Person (or series
of related capital investments, loans and acquisitions) either involving more
than $2,500 in any case or $10,000 in the aggregate;

           (g)  the Company has not issued any note, bond or other debt security
or created, incurred, assumed or guaranteed any indebtedness for borrowed money
or capitalized lease obligation involving more than $20,000 in the aggregate;

           (h)  the Company has not delayed or postponed the payment of accounts
payable or other Liabilities of the Company outside the Ordinary Course of
Business;

           (i)  the Company has not cancelled, compromised or waived or released
any right or claim (or series of related rights and claims) either involving
more than $2,500 in any case, or $10,000 in the aggregate;

           (j)  the Company has not granted any license or sublicense of any
rights under or with respect to any Company Intellectual Property;

           (k)  the Company has not experienced any material damage, destruction
or loss (whether or not covered by insurance) to the Purchased Assets;

           (l)  the Company has not made any loan to, or entered into any other
transaction with, any the Company Employees;

           (m)  the Company has not returned any deposits or received requests
or, to the Knowledge of Sellers, threats to return any deposits in connection
with any cancellation or, to the Knowledge of Sellers, threatened cancellation
of any the Company Assumed Contracts;

                                     -15-
<PAGE>

           (n)  the Company has not made any Tax election or settled or
compromised any Federal, state, local or foreign income Tax liability;

           (o)  the Company has not paid, discharged or satisfied any claims,
liabilities or obligations (absolute, accrued, asserted or unasserted,
contingent or otherwise) involving more than $2,500 in any case, or $10,000 in
the aggregate;

           (p)  the Company has not entered into any employment contract or
collective bargaining agreement, written or oral, except for such agreements as
may be terminable at will by the Company upon not more than thirty (30) days'
notice or modified the terms of any existing contract or agreement;

           (q)  the Company has not granted any increase in the base
compensation of any of its officers and employees or hired any individuals
earning any annual compensation, including salary, cash bonuses and commissions,
in excess of $7,425 per month prorated;

           (r)  the Company has not made any other change in employment terms
for any of its officers or employees; and

           (s) the Company has not made any distributions of any kind to its
stockholders for the period from July 1, 1999 to the Closing involving more than
$35,000 in the aggregate.

     3.11  No Undisclosed Liabilities. Except as disclosed in the Disclosure
           --------------------------
Schedule or in the Financial Statements, there are no Liabilities or claims, nor
any basis for any Liabilities or claims against, relating to or affecting the
Business or the Purchased Assets, other than Liabilities incurred after the end
of the period covered by the Interim Financial Statements in the Ordinary Course
of Business which have not had, and could not be expected to result,
individually or in the aggregate, in a Material Adverse Effect on the Business
or the Purchased Assets.

     3.12  Purchased Assets. Section 3.12 of the Disclosure Schedule contains a
           ----------------  ------------
complete and accurate schedule specifying the location of all of the Purchased
Assets, where applicable, as of the Closing Date. The Company has good and
marketable title to, or a valid leasehold interest in all of the Purchased
Assets to be delivered to COMPS by Sellers, free and clear of all Encumbrances,
except the Permitted Encumbrances. The Purchased Assets constitute all personal
property of any nature owned by the Company and used in the operation of the
Business, except for the Excluded Assets. All tangible personal property of the
Company included in the Purchased Assets is in good operating condition and
repair, ordinary wear and tear excepted. The Company shall be in actual
possession of the Purchased Assets. The Purchased Assets include all the
Intellectual Property necessary for the ownership and operation of the Business.
All of the software in the Company Intellectual Property shall be fully
functional and free of defects as delivered upon Closing. In the event the
software in the Company Intellectual Property becomes defective or is not
functional in the same manner that it functioned prior to the Closing as a
result of (i) the source code or object code of such software being altered by
COMPS, (ii) alteration of the location or configuration of network on which CBN
resides; or (iii) alteration of the data entry or maintenance procedures by CBN
as of the

                                     -16-
<PAGE>

Closing Date (collectively, the "Altered Software"), the representation in the
immediately preceding sentence shall become null and void with respect to the
Altered Software.

     3.13  Intellectual Property Rights. Schedule 2.1(e) contains a true,
           ----------------------------  ---------------
complete and correct list and summary description of all of Intellectual
Property, other than goodwill, owned and/or used by the Company in the operation
of the Business. The Company is not in violation of, or infringing upon, any
Intellectual Property of any third party, and no claims have been asserted, nor
is there any litigation pending or, to the Knowledge of Sellers, threatened
claiming such infringement. Other than commercially available over-the-counter
"shrink wrap" software, Section 3.13 of the Disclosure Schedule identifies each
                        ------------
item of Intellectual Property that any third party owns and that the Company
uses pursuant to license, sublicense, agreement or permission. With respect to
each such item: (i) the license, sublicense, agreement or permission covering
the item is legal, valid, binding, enforceable and in full force and effect
against the Company; (ii) the license, sublicense, agreement or permission will
continue to be legal, valid, binding, enforceable and in full force and effect
on identical terms following the consummation of the transactions contemplated
hereby; (iii) neither the Company, nor to the Knowledge of Sellers, the other
party to the license, sublicense, agreement or permission is in breach or
default, and to the Knowledge of Sellers, no event has occurred which with
notice or lapse of time would constitute a breach or default or permit
termination, modification or acceleration thereunder; (iv) neither the Company,
nor to the Knowledge of Sellers, the other party to the license, sublicense,
agreement or permission has repudiated any provision thereof; (v) with respect
to each sublicense, the representations and warranties set forth in subsections
(i) through (iv) above are true and correct with respect to the underlying
license; (vi) the underlying item of Intellectual Property is not subject to any
outstanding Order; (vii) no Actions or Proceedings against Sellers are pending
or, to the Knowledge of Sellers, are threatened which challenge the legality,
validity or enforceability of the underlying item of Intellectual Property; and
(viii) the Company has not granted any sublicense or similar right with respect
to the license, sublicense, agreement or permission. Sellers have delivered to
COMPS complete and accurate copies of each agreement, registration and other
documents relating to Intellectual Property set forth in Schedule 2.1(e).
                                                         ---------------

     3.14  Proprietary Information of Third Parties. No third party has claimed
           ----------------------------------------
or, to the Knowledge of Sellers, has reason to claim that any person employed by
or affiliated with the Company in connection with and during the Company's
ownership and operation of the Business has: (i) violated or may be violating
any of the terms or conditions of such person's employment, non-competition or
non-disclosure agreement with such third party; (ii) disclosed or may be
disclosing or utilized or may be utilizing any trade secret or proprietary
information or documentation of such third party; or (iii) interfered or may be
interfering in the employment relationship between such third party and any of
its present or former employees. No third party has requested information from
the Company which suggests that such a claim might be contemplated. No person
employed by or affiliated with the Company in connection with and during the
Company's ownership and operation of the Business has employed or proposes to
employ any trade secret or any information or documentation proprietary to any
former employer and no person employed by or affiliated with the Company in
connection with and during the Company's ownership and operation of the Business
has violated any confidential relationship which such person may have had with
any third party, in connection with the development, manufacture or sale of any
product or proposed product or the development or sale of any service

                                     -17-
<PAGE>

or proposed service of the Company, and Sellers have no reason to believe there
will be any such employment or violation.

     3.15  Litigation. There are no Actions or Proceedings pending or, to the
           ----------
Knowledge of Sellers, threatened or anticipated against, relating to or
affecting (i) the Company, the Purchased Assets or the Business or (ii) the
transactions contemplated by this Agreement, and there is no basis for any such
Action or Proceeding. No Seller is in default with respect to any Order relating
to the Company, the Business or the Purchased Assets, and there are no
unsatisfied judgments against any Seller, the Business or the Purchased Assets.

     3.16  Compliance with Law. Sellers are in compliance with all applicable
           -------------------
laws, statutes, Orders, ordinances and regulations, whether federal, state,
local or foreign, except where the failure to comply, in each instance and in
the aggregate, would not be expected to result in a Material Adverse Effect on
the Business or the Purchased Assets. Sellers have not received any written
notice to the effect that, or otherwise have been advised that, any of them are
not in compliance with any of such laws, statutes, Orders, ordinances or
regulations, where the failure to comply would be expected to result in a
Material Adverse Effect on the Business or the Purchased Assets.

     3.17  Contracts. The Company Assumed Contracts are all of the contracts,
           ---------
agreements and arrangements, whether written or oral, to which the Business and
the Purchased Assets are bound. Each of the Company Assumed Contracts is in full
force and effect and constitutes a legal, valid and binding agreement,
enforceable in accordance with its terms, of each party thereto; and the Company
has performed all of its required obligations under, and is not, in any respect,
in violation or breach of or default under, any such contract, agreement or
arrangement. To the Knowledge of Sellers, the other parties to any such
contract, agreement or arrangement are not in violation or breach of or default
under any such contract, agreement or arrangement. None of the present or former
Company Employees is a party to any oral or written contract or agreement
prohibiting any of them from freely competing with other parties or engaging in
the Business as now operated or proposed to be operated.

     3.18  Tax Matters. All Taxes imposed by the United States, by any state,
           -----------
municipality, other local government or other subdivision or instrumentality of
the United States, or by any foreign country or any state or other government
thereof, or by any other taxing authority, that are due and payable by the
Company and all interest and penalties thereon, whether disputed or not, and
which would result in the imposition of an Encumbrance on the Purchased Assets
or the Company or against COMPS, other than Taxes which are not yet due and
payable, have been paid in full. The reserves for Taxes reflected in the
Financial Statements are sufficient for payment for all Taxes accrued through
the respective dates thereof. All Tax Returns required to be filed in connection
therewith have been accurately prepared and duly and timely filed and all
deposits required by law to be made by the Company with respect to the Company
Employees' withholding or other taxes have been duly made. Sellers are not
delinquent in the payment of any tax, assessment or governmental charge or
deposits which would result in the imposition of an Encumbrance on the Purchased
Assets or against COMPS, and the Company has no tax, deficiency or claim
outstanding, proposed or assessed against it, and there is no basis for any such
deficiency or claim, which would result in the imposition of any Encumbrances on
the Business, the Purchased Assets or against COMPS. The Company has not
requested any extension of time within which to file any Tax Return, which Tax
Return has

                                     -18-
<PAGE>

not since been filed, or waived any statute of limitations for, or agreed to any
extension of time with respect to, the assessment of Taxes. The statute of
limitations for all Tax Returns of the Company has expired for all federal,
state, local and foreign Taxes, or the Tax Returns of the Company have been
examined by the appropriate taxing authorities for all periods. The Company has
delivered (i) the Tax Returns for the Company for the three most recent fiscal
years and for any other tax years for which the applicable statute of
limitations has not expired, and (ii) copies of all federal and state tax
audits, if any. Such Tax Returns represent the true and correct taxable income
of the Company.

     3.19  Real Property. The Company owns no parcel of real property and leases
           -------------
no real parcel of real property. COMPS shall not incur any liability arising
from any real property owned or leased by the Company or the Stockholder.

     3.20  Environmental and Occupational Health Matters. The Company has not
           ---------------------------------------------
been and currently is not in violation (or alleged to be in violation) of any
applicable statute, law or regulation relating to the environment or
occupational health and safety ("Environmental and Occupational Laws"). There
are no circumstances which may materially prevent or interfere with compliance
in the future of any Environmental and Occupational Laws.

     3.21  Equipment. All equipment used by the Company in the conduct of the
           ---------
Business are structurally sound with no known material defects and are in good
operating condition and repair (subject to normal wear and tear) so as to permit
the operation of the Business as presently conducted. No such equipment is in
need of maintenance or repairs except for ordinary, routine maintenance and
repairs which are not material in nature or cost. With respect to each item of
equipment, the Company has not received notification that it is in violation, in
any material respect, of any applicable building, zoning, subdivision, fire
protection, health or other law, Order, ordinance or regulation and no such
violation exists.

     3.22  Accounts Receivable. The accounts receivable and all other
           -------------------
receivables shown on the Financial Statements and on the Interim Financial
Statements (subject to reserves for non-collectability as reflected therein),
and all receivables acquired or generated by the Company since the end of the
period covered by the Interim Financial Statements (subject to reserves for non-
collectability as reflected on the books and financial statements of the
Company), are bona fide receivables and represent amounts due with respect to
actual, arms-length transactions entered into in the Ordinary Course of Business
of the Company and are collectible, legal, valid and binding obligations of the
obligors, and will be collected by the Company without counterclaim or setoff.
Such reserves have been reflected on the books and financial statements of the
Company in accordance with GAAP.

     3.23  Permits. No Permits are necessary for the Company to conduct the
           -------
Business in compliance with all applicable federal, state and local laws.
Neither the execution, delivery or performance of this Agreement nor the mere
passage of time will cause any Permits to be required by virtue of the
execution, delivery or performance of this Agreement to enable the Company to
conduct its business as now operated. There is no pending Action or Proceeding
by any Governmental or Regulatory Authority which could affect the current
conduct of the Company's business or of the conduct of the Company's business
after the Closing.

     3.24  Benefit Plans. The Company has no Benefit Plans or any other similar
           -------------
plans.


                                     -19-
<PAGE>

           (a) The Company has no commitment, proposal, or communication to
employees regarding the creation of any Benefit Plan or Plan. Neither the
Company, an ERISA Affiliate or predecessor thereof has ever maintained,
contributed to or been obligated to contribute to any Defined Benefit Plan or
multiemployer plan (as defined in Section (3)(37) or 4001(a)(3) of ERISA) and no
condition exists that presents a risk to the Company or an ERISA Affiliate of
incurring a liability under Title IV of ERISA. Except as set forth in the
Disclosure Schedule, the consummation of the transactions contemplated by this
Agreement will not, either immediately or upon the occurrence of any event
thereafter, (i) entitle any current or former employee or officer or director of
the Company or any ERISA Affiliate to severance pay, unemployment compensation
or any other payment, or (ii) accelerate the time of payment or vesting, or
increase the amount of compensation otherwise due any such individual.

     3.25  Labor and Employment Relations. The Company has no employees. There
           ------------------------------
are no pending or, to the Knowledge of Sellers, threatened charges (by
employees, their representatives or governmental authorities) of unfair labor
practices or of employment discrimination or of any other wrongful action with
respect to any aspect of employment of any person formerly employed by the
Company.

     3.26  Certain Employees. Set forth in Section 3.26 of the Disclosure
           -----------------               ------------
Schedule is a list of the names of the Company Employees and consultants as of
the date hereof involved in the management and operation of the Business,
together with the title or job classification of each such person and the total
compensation (with wages and bonuses, if any, separately detailed) paid in 1998
(if applicable) and the current rate of pay for each such person on the date of
this Agreement. Except as set forth in Section 3.26 of the Disclosure Schedule,
                                       ------------
none of such persons has an employment agreement or understanding, whether oral
or written, with the Company which is not terminable on notice by the Company
without cost or other liability to the Company.

     3.27  Insurance. Section 3.27 of the Disclosure Schedule correctly
           ---------  ------------
describes (by type, carrier, policy number, limits, premium, and expiration
date) the material insurance coverages carried by the Company in connection with
its ownership and operation of the Purchased Assets and the Business. As of the
date of this Agreement, there is no material claim by the Company pending under
any of the material Company insurance policies as to which coverage has been
questioned, denied or disputed by the underwriters of such policies or bonds.
All premiums payable under all such material Company insurance policies have
been paid and, to the Knowledge of Sellers, are in material compliance with the
terms of such policies. As of the date of this Agreement, the Company does not
know of any threatened termination of, or material premium increase with respect
to, any of its material insurance policies.

     3.28  Necessary Property. The Purchased Assets, owned or leased by or
           ------------------
licensed to the Company, constitute all of the property necessary for the
conduct of the Business in the manner and to the extent presently conducted by
the Company.

     3.29  Customers. The Company has previously provided to COMPS a true and
           ---------
correct list of the Company's customers during the 1998 fiscal year and the
seven (7)-month period ended July 31, 1999. Except as set forth in the
Disclosure Schedule, since December 31, 1998, no single customer or group of
affiliated customers contributing more than $5,000 per annum to the gross
revenues of the Business has stopped doing business with the Company, and to the

                                     -20-
<PAGE>

Knowledge of Sellers, no such customer has an intention to discontinue doing
business or reduce the level of gross revenues from that in fiscal years 1998 or
1999 with the Company.

     3.30  Third Party Consents. No consent, approval or authorization of any
           --------------------
Seller is required in connection with the consummation of the transactions
contemplated hereunder except as otherwise provided in Section 3.30 of the
                                                       ------------
Disclosure Schedule.

     3.31  Brokers. Sellers have retained William York, a broker in connection
           -------
with the transactions contemplated hereunder. COMPS does not have any nor will
have any obligation to pay any broker's, finder's, investment banker's,
financial advisor's or similar fee in connection with this Agreement or the
transactions contemplated hereby by reason of any action taken by or on behalf
of any Seller.

     3.32  Year 2000 Compliance. For purposes of this Section: (i) "Year 2000
           --------------------
Processing" means processing by the Company Intellectual Property that manage
and/or manipulate data involving dates, including single century formulas and
multi-century formulas and dates on or after January 1, 2000; and (ii) "properly
perform the Year 2000 Processing" means that the Company Intellectual Property
will not cause an abnormally ending dating scenario within the application or
result in incorrect values generated involving such dates. Sellers warrant that
(x) any version of Company Intellectual Property being transferred to COMPS,
other than over-the-counter "shrink wrap" software, shall properly perform Year
2000 Processing, and (y) all other versions of Company Intellectual Property
provided by the Company shall properly perform Year 2000 Processing. The
Stockholder shall have the right to cure any Year 2000 Processing problems that
arise from any Year 2000 process automatically provided that the Stockholder
resolve such Year 2000 processing problem by December 1, 1999.

     3.33  Assignment of Company Revenue. Prior to the Closing Date, the Company
           ------------------------------
assigned its gross revenues derived from the Business to American Realty
Corporation (the "Assignment Obligation"). As of the Closing Date, the
Assignment Obligation will have terminated, the Company will have no obligations
of any kind or nature to assign any portion of its gross revenues derived from
the Business to American Realty Corporation, any of its Affliates or any other
party and COMPS shall have all right, title and interest to any such gross
revenue derived from the Business on and after the Closing Date free and clear
of all Encumbrances.

     3.34  Investment Representations. Each Seller is an "accredited investor"
           --------------------------
within the meaning of the Securities Act. Seller is aware that the COMPS
Securities issuable pursuant to this Agreement have not been registered under
the Securities Act or any applicable state securities laws, and agrees that the
COMPS Securities will not be offered or sold in the absence of registration
under the Securities Act and any applicable state securities laws or an
exemption from the registration requirements of the Securities Act and any
applicable state securities laws, which shall be accompanied by an opinion of
counsel to such Seller satisfactory to COMPS and its counsel that registration
of such securities is not required. Each Seller agrees not to transfer the COMPS
Securities in violation of the provisions of any applicable federal or state
securities laws. In this connection, each Seller represents that he, she or it
is familiar with Rule 144 and Rule 145 promulgated by the SEC pursuant to the
Securities Act, as presently in effect, and understands the resale limitations
imposed thereby and by the Securities Act. Each Seller understands that the
offering and sale of the COMPS Securities is intended to be exempt from

                                     -21-
<PAGE>

registration under the Securities Act, by virtue of the private placement
exemption provided by Rule 505 and/or 506 of Regulation D promulgated under the
Securities Act and/or Section 4(2) of the Securities Act, based, in part, upon
the representations, warranties and agreements contained in this Agreement, and
COMPS may rely on such representations, warranties and agreements in connection
therewith. Each Seller is acquiring the COMPS Securities for his, her or its own
account and for investment, and not with a view to the distribution thereof or
with any present intention of distributing or selling any of the COMPS
Securities except in compliance with the Securities Act. Each Seller represents
that by reason of his, her or its business and financial experience, and the
business and financial experience of those persons, if any, retained by such
Seller to advise him, her or its with respect to his, her or its investment in
the COMPS Securities, each Seller together with such advisors have knowledge,
sophistication and experience in business and financial matters as to be capable
of evaluating the merits and risk of the prospective investment. The financial
condition and investments of each Seller are such that such Seller is in a
financial position to hold the COMPS Securities for an indefinite period of time
and to bear the economic risk of, and withstand a complete loss of, his
investment in the COMPS Securities. Each Seller has carefully examined this
Agreement and all exhibits and schedules thereto and the COMPS SEC Filings. Each
Seller acknowledges that COMPS has made available to him, her or it all
documents and information that such Seller has requested relating to COMPS and
has provided answers to all of such Seller's questions concerning COMPS and/or
the COMPS Securities. In evaluating the suitability of the acquisition of the
COMPS Securities hereunder, no Seller has not relied upon any representations or
other information (whether oral or written) other than as set forth in the COMPS
SEC Filings or as contained herein.

     3.35  Net Assets. Net Assets ("Net Assets") for May 31 1999 and as of the
           ----------
Closing Date is calculated as assets less liabilities as described in the May
31, 1999 balance sheet attached hereto (the "May 31 Balance Sheet"). The May 31
Balance Sheet is true, complete and accurate. The calculation of the Net Assets
as of the Closing Date will be based on an accounting basis consistent with the
May 31 Balance Sheet; specially, there shall be no adjustments for unearned
revenue, federal or Texas franchise taxes, or accrued annual leave. The
Stockholder agrees that there shall be an adjustment to the Purchase Price if
the Net Assets as the Closing Date is less than Six Thousand Seven Hundred and
Nine Dollars ($6,709). Such purchase price adjustment shall be in the form of an
offset against the Promissory Note.

     3.36  Operating Profit. The aggregate net income of the Parramore, Inc. and
           ----------------                                  -------------------
CBN/ARA-HL for the first six (6) months of 1999 as described in the Interim
- ----------
Financial Statements (the "Pre-audited Net Income") shall not have decreased by
more than Ten Thousand Dollars ($10,000) for the same period from the net income
(cash basis adjusted) described in the audited version of the Interim Financial
Statements (the "Audited Net Income") to be delivered within thirty (30) days
following the Closing. In the event the Pre-audited Net Income is less than the
Audited Net Income by more than Ten Thousand Dollars ($10,000), the Stockholder
shall be obligated to indemnify COMPS pursuant to Section 5.2 below for an
                                                  -----------
amount equal the product of (i) five (5) times the difference between such Pre-
audited Net Income and the Audited Net Income, multiplied by (ii) two (2). This
                                               ----------
product represents the annualized result.

     3.37  Material Misstatements and Omissions. The statements, representations
           ------------------------------------
and warranties of Sellers contained in this Agreement (including the exhibits
and schedules hereto) and in each document, statement, certificate or exhibit
furnished or to be furnished by or on

                                     -22-
<PAGE>

behalf of the Company or the Sellers pursuant hereto, or in connection with the
transactions contemplated hereby, taken together, do not contain and will not
contain any untrue statement of a material fact and do not or will not omit to
state a material fact necessary to make the statements or facts contained herein
or therein, in light of the circumstances made, not misleading.

                                  ARTICLE IV

                    REPRESENTATIONS AND WARRANTIES OF COMPS
                    ---------------------------------------

    COMPS represents and warrants to Sellers as of the Closing, as follows:

     4.1   Organization of COMPS. COMPS is a corporation duly organized,
           ---------------------
validly existing, and in good standing under the laws of the State of Delaware.
COMPS is duly authorized to conduct business and is in good standing under the
laws of each jurisdiction where such qualification is required except for any
jurisdiction where failure so to qualify would not have a Material Adverse
Effect upon COMPS. COMPS has full power and authority, and holds all Permits and
authorizations necessary, to carry on the business in which it is engaged and to
own and use the properties owned and used by it except where the failure to have
such power and authority or to hold such license, permit or authorization would
not have a Material Adverse Effect on COMPS.

     4.2   Authority of COMPS. COMPS has all necessary corporate power and
           ------------------
corporate authority and has taken all corporate actions necessary to enter into
this Agreement, to consummate the transactions contemplated hereby and to
perform its obligations hereunder and no other proceedings on the part of COMPS
are necessary to authorize this Agreement or to consummate the transactions
contemplated hereby. This Agreement has been duly and validly executed and
delivered by COMPS and constitutes a legal, valid and binding obligation of
COMPS enforceable against COMPS in accordance with its terms except (i) as
limited by applicable bankruptcy, insolvency, reorganization, moratorium and
other laws of general application affecting enforcement of creditors' rights
generally and (ii) as limited by laws relating to the availability of specific
performance, injunctive relief or other equitable remedies.

     4.3   COMPS SEC Filings. COMPS has furnished or made available to Sellers
           -----------------
copies of all reports or registration statements filed by it with the SEC under
the Securities Act and the Exchange Act for all periods since May 5, 1999, all
in the form so filed (all the foregoing being collectively referred to as the
"COMPS SEC Filings"). As of their respective filing dates, the COMPS SEC Filings
complied in all material respects with the requirements of the Securities Act or
the Exchange Act, as the case may be, and none of the COMPS SEC Filings
contained any untrue statement of a material fact or omitted to state a material
fact required to be stated therein or necessary to make the statements made
therein, in light of the circumstances in which they were made, not misleading,
except to the extent corrected by a document subsequently filed with the SEC.
The financial statements of COMPS, including the notes thereto, included in the
SEC Document comply as to form in all material respects with applicable
accounting requirements and with the published rules and regulations of the SEC
with respect thereto, have been prepared in accordance with GAAP consistently
applied (except as may be indicated in the notes thereto or, in the case of
unaudited statements, as permitted by Form 10-Q of the SEC) and

                                     -23-
<PAGE>

present fairly the financial position of COMPS at the dates thereof and the
results of its operations and cash flows for the periods then ended (subject, in
the case of unaudited statements, to normal audit adjustments).


                                   ARTICLE V


                   ACTIONS BY THE PARTIES AFTER THE CLOSING
                   ----------------------------------------

     5.1  Survival of Representations, Warranties, Etc. The representations,
          --------------------------------------------
warranties and covenants contained in or made pursuant to this Agreement or any
certificate, document or instrument delivered pursuant to or in connection with
this Agreement in the transactions contemplated hereby shall survive the
execution and delivery of this Agreement and the Closing hereunder
notwithstanding any investigation, analysis or evaluation by COMPS or its
designees of the Purchased Assets, Business, operations or condition (financial
or otherwise) of the Company and the Purchased Assets and thereafter the
representations and warranties of Sellers shall continue to survive in full
force and effect for a period of two (2) calendar years after the Closing Date.

     5.2  Indemnification.
          ---------------

          (a)  By Sellers.  Sellers shall jointly and severally, indemnify,
               ----------
defend and hold harmless COMPS, and its officers, directors, employees, agents,
successors and assigns (collectively the "COMPS Group") from and against any and
all costs, losses (including, without limitation, diminution in value),
Liabilities, damages, lawsuits, deficiencies, claims and expenses, including
without limitation, interest, penalties, costs of mitigation, lost profits and
other losses resulting from any shutdown or curtailment of operations,
attorneys' fees and all amounts paid in investigation, defense or settlement of
any of the foregoing (collectively, the "Damages"), incurred in connection with,
arising out of, resulting from or incident to (i) any breach of any covenant,
representation, warranty or agreement or the inaccuracy of any representation,
made by Sellers in or pursuant to this Agreement, or in the other documents
delivered in connection with the transactions contemplated in this Agreement,
(ii) any breach of any covenant, representation, warranty or agreement relating
to the Business or CBN or the inaccuracy of any representation relating to the
Business or CBN made by Sendero or its stockholder in or pursuant to that
certain Stock Purchase Agreement by and among COMPS, Sendero and its stockholder
dated August 27, 1999 (the "Sendero Purchase Agreement") or in the other
documents delivered in connection with the transactions contemplated in Sendero
Purchase Agreement to the extent such other documents relate to the Business or
CBN, (iii) Actions or Proceedings set forth in the Disclosure Schedule or in the
other documents delivered in connection with the transactions contemplated in
this Agreement, (iv) any Liabilities of Sellers which relates to the Business
and arises out of transactions entered into or events occurring prior to the
Closing or (v) any Liabilities relating to the Worker Adjustment and Retraining
Act of 1988, as amended.

          (b)  By COMPS.  COMPS shall indemnify, defend and hold harmless
               --------
Sellers and their officers, employees, agents, successors and assigns from and
against any and all Damages incurred in connection with, arising out of,
resulting from or incident to any breach of

                                     -24-
<PAGE>

any covenant, representation, warranty or agreement or the inaccuracy of any
representation, made by COMPS in or pursuant to this Agreement.

     (c)  Defense of Claims.  If any Action or Proceeding is filed or initiated
          -----------------
against any party entitled to the benefit of indemnity hereunder, written
notice thereof shall be given to the indemnifying party as promptly as
practicable (and in any event within ten (10) days after the service of the
citation or summons); provided, however, that the failure of any
                      --------  -------
indemnified party to give timely notice shall not affect rights to
indemnification hereunder except to the extent that the indemnifying party
demonstrates actual damage caused by such failure. After such notice, if the
indemnifying party shall acknowledge in writing to the indemnified party that
the indemnifying party shall be obligated under the terms of its indemnity
hereunder in connection with such Action or Proceeding, then the indemnifying
party shall be entitled, if it so elects, to take control of the defense and
investigation of such Action or Proceeding and to employ and engage attorneys of
its own choice to handle and defend the same, such attorneys to be reasonably
satisfactory to the indemnified party, at the indemnifying party's cost, risk
and expense (unless (i) the indemnifying party has failed to assume the defense
of such Action or Proceeding or (ii) the named parties to such Action or
Proceeding include both of the indemnifying party and the indemnified party, and
the indemnified party and its counsel determine in good faith that there may be
one or more legal defenses available to such indemnified party that are
different from or additional to those available to the indemnifying party and
that joint representation would be inappropriate), and to compromise or settle
such Action or Proceeding, which compromise or settlement shall be made only
with the written consent of the indemnified party, such consent not to be
unreasonably withheld. The indemnified party may withhold such consent if such
compromise or settlement would adversely affect the conduct of business or
requires less than an unconditional release to be obtained. If (i) the
indemnifying party fails to assume the defense of such Action or Proceeding
within fifteen (15) days after receipt of notice thereof pursuant to this
Section 5.2, or (ii) the named parties to such Action or Proceeding include both
- -----------
the indemnifying party and the indemnified party and the indemnified party and
its counsel determine in good faith that there may be one or more legal defenses
available to such indemnified party that are different from or additional to
those available to the indemnifying party and that joint representation would be
inappropriate, the indemnified party against which such Action or Proceeding has
been filed or initiated will (upon delivering notice to such effect to the
indemnifying party) have the right to undertake, at the indemnifying party's
cost and expense, the defense, compromise or settlement of such Action or
Proceeding on behalf of and for the account and risk of the indemnifying party;
provided, however, that such Action or Proceeding shall not be compromised or
- --------  -------
settled without the written consent of the indemnifying party, which consent
shall not be unreasonably withheld. In the event the indemnified party assumes
defense of the Action or Proceeding, the indemnified party will keep the
indemnifying party reasonably informed of the progress of any such defense,
compromise or settlement and will consult with, when appropriate, and consider
any reasonable advice from, the indemnifying party of any such defense,
compromise or settlement. The indemnifying party shall be liable for any
settlement of any action effected pursuant to and in accordance with this
Section 5.2 and for any final judgment (subject to any right of appeal), and the
- -----------
indemnifying party agrees to indemnify and hold harmless the indemnified party
from and against any Damages by reason of such settlement or judgment.

                                     -25-
<PAGE>

               Regardless of whether the indemnifying party or the indemnified
party takes up the defense, the indemnifying party will pay reasonable costs and
expenses in connection with the defense, compromise or settlement for any Action
or Proceeding under this Section 5.2.
                         -----------

               The indemnified party shall cooperate in all reasonable respects
with the indemnifying party and such attorneys in the investigation, trial and
defense of such Action or Proceeding and any appeal arising therefrom; provided,
                                                                       --------
however, that the indemnified party may, at its own cost, participate in the
- -------
investigation, trial and defense of such Action or Proceeding and any appeal
arising therefrom.  The indemnifying party shall pay all expenses due under this
Section 5.2 as such expenses become due.  In the event such expenses are not so
- -----------
paid, the indemnified party shall be entitled to settle any Action or Proceeding
under this Section 5.2 without the consent of the indemnifying party and without
           -----------
waiving any rights the indemnified party may have against the indemnifying
party.

          (d)  Limitation on Indemnification
               -----------------------------
               (i)   Sellers shall have no liability to any member of the COMPS
Group, and COMPS shall have no liability to Sellers, for amounts payable
pursuant to their respective indemnification obligations in this Section 5.2
                                                                 -----------
until the total of all Damages incurred by the indemnified party (i) exceeds Ten
Thousand Dollars ($10,000) with respect to Section 3.36 only and (ii) exceeds
                                           ------------
Twenty Five Thousand Dollars ($25,000) in the aggregate for all other Damages
(collectively the "Threshold Amount"), and then indemnification by the
indemnifying party shall apply to all such Damages including the Threshold
Amount;

               (ii)  Sellers shall have no liability to any member of the COMPS
Group, and COMPS shall have no liability to Sellers, pursuant to their
respective indemnification obligations in this Section 5.2 to the extent that
                                               -----------
the total of all Damages paid by the indemnifying party pursuant to such
indemnification obligations exceeds Three Hundred Eighty-Four Thousand Eight
Hundred Forty-Six Dollars ($384,846) in the aggregate; and

               (iii) The limitation on COMPS' indemnification obligation in this
Section 5.2(d) shall not apply to any fraud or intentional breach by COMPS of
- --------------
any representation, warranty, covenant or agreement or obligation of COMPS. The
limitation on the Sellers' indemnification obligation in this Section 5.2(d)
                                                              --------------
shall not apply to (i) any fraud or intentional breach by Sellers of any
representation, warranty, covenant or agreement or obligation of Sellers, (ii)
any breach of the representations and warranties by Sellers in Sections 3.18 and
                                                               -------------
3.35 and (iii) any discrepancies in the calculation of the account receivables
- ----
stated in the Interim Financial Statements and the account receivables stated in
the Financial Statements. The limitation on Sellers' indemnification obligation
in Section 5.2(d)(ii) shall not apply to any breach of the representations and
   ------------------
warranties by Sellers in Section 3.36.
                         ------------

     5.3  Offset.
          ------

          (a)  In addition to any other rights and remedies available to COMPS
herein, COMPS shall have the right to offset any amounts to which it may be
entitled under Section 5.2 above against (i) the Holdback Amount and (ii)
               -----------
amounts otherwise payable under the ARA-D/FW Promissory Note (collectively the
"Offset Amount"). If COMPS elects to offset any

                                     -26-
<PAGE>

Offset Amount against the Holdback Amount or the ARA-D/FW, Promissory Note,
COMPS shall promptly notify the Company in writing (the "Offset Notice") by
certified mail (return receipt requested) or by a nationally recognized
overnight courier service (e.g., Federal Express) of the amount, nature and
basis of the offset. In the event the Company disputes COMPS' offset, the
Company shall notify COMPS of the dispute in writing (the "Dispute Notice") by
certified mail (return receipt requested) or a nationally recognized overnight
courier service within ten (10) days of COMPS' mailing of the Offset Notice. If
no Dispute Notice is given within such ten (10) day period, the COMPS offset
described in the Offset Notice shall be deemed agreed between the parties and
the Offset Amount offset against the Holdback Amount or the ARA-D/FW Promissory
Note shall be subtracted from the Holdback Amount or the outstanding principal
balance of the ARA-D/FW Promissory Note, as the case may be, at such time. In
the event a Dispute Notice is timely delivered to COMPS, COMPS and the Company
shall first use their best efforts to resolve such dispute among themselves
within ten (10) days following COMPS' receipt of the Dispute Notice. If COMPS
and the Company are unable to resolve the dispute within such ten (10) day
period, COMPS and the Company agree to settle the dispute by binding
arbitration, in accordance with Section 6.10 below In the event of a dispute,
                                ------------
the Offset Amount to be offset and all interests accrued thereon shall not be
released to the Company pursuant to Section 2.4(b) hereof (and the terms of the
                                    --------------
ARA-D/FW Promissory Note), but shall be held by COMPS until such dispute is
resolved.

         (b)  The exercise of an offset by COMPS pursuant to Section 5.3(a)
                                                              --------------
above, whether or not ultimately determined to be justified, will not constitute
an event of default under the ARA-D/FW Promissory Note or any instrument
securing the ARA-D/FW Promissory Note. Neither the exercise of nor the failure
to exercise such right of offset will constitute an election of remedies or
limit COMPS in any manner in the enforcement of any other remedies that may be
available to it.

     5.4  Further Assurances. In case at any time after the Closing any further
          ------------------
action is necessary or desirable to carry out the purposes of this Agreement,
each of the parties will take such further action (including the execution and
delivery of such further instruments and documents) as the other party
reasonably may request, all the sole cost and expense of the requesting party
(unless the requesting party is entitled to indemnification therefor under this
Article 5).

     5.5  Restricted Securities. (a) Transfer of this Note or Securities on
          -----------------------------------------------------------------
Conversion Thereof. With respect to any proposed offer, sale, assignment or
- ------------------
other disposition of the Promissory Note or securities into which the Promissory
Note may be converted, the Company will provide (i) written notice to COMPS
prior thereto, describing briefly the proposed offer, sale or other disposition,
(ii) a written opinion of the Company's counsel, reasonably satisfactory to
COMPS and accompanied by such supporting documents as COMPS may reasonably
request, to the effect that such offer, sale or other distribution may be
effected without registration or qualification (under any federal or state law
then in effect) and (iii) the party acquiring the Promissory Note has agreed in
writing for the benefit of COMPS to be bound by the terms of the Promissory
Note. Promptly upon receiving the foregoing, COMPS as promptly as practicable,
shall notify the Company whether the Company may sell or otherwise dispose of
this Promissory Note or such securities, all in accordance with the terms of the
notice delivered to COMPS. If a determination has been made pursuant to this
Section 5.5 that the opinion of counsel for the Company is not reasonably
- -----------
satisfactory to COMPS or the party acquiring the Promissory Note

                                     -27-
<PAGE>

has not agreed to be bound by the terms of the Promissory Note, COMPS shall so
notify the Company promptly after such determination has been made. The
Promissory Note thus transferred and each certificate representing the
securities thus transferred shall bear the legends set forth in below. COMPS
shall be entitled to issue stop transfer instructions to its transfer agent in
connection with such restrictions.

          (b)  No Stockholder Rights. Nothing contained in this Agreement or the
               ---------------------
Promissory Note shall be construed as conferring upon the Company or any other
person the right to vote or to consent or to receive notice as a stockholder in
respect of meetings of stockholders for the election of directors of COMPS or
any other matters or any rights whatsoever as a stockholder of COMPS; and no
dividends or interest shall be payable or accrued in respect of the Promissory
Note or the interest represented hereby or the Common Stock into which the
Promissory Note is convertible until, and only to the extent that, the
Promissory Note shall have been converted.

          (c)  Legends. The Company understands that the Promissory Note and the
               -------
certificates evidencing the Securities issuable under the Promissory Note may
bear one or all of the following legends:

                    (i)  NEITHER THIS CONVERTIBLE SUBORDINATED PROMISSORY NOTE
                         NOR ANY OF THE SECURITIES ISSUABLE HEREUNDER HAS BEEN
                         REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED
                         (THE "ACT"), AND MAY NOT BE OFFERED, SOLD OR OTHERWISE
                         TRANSFERRED, PLEDGED OR HYPOTHECATED IN THE ABSENCE OF
                         A REGISTRATION STATEMENT IN EFFECT WITH RESPECT TO THE
                         SECURITIES, OR DELIVERY TO THE COMPANY OF AN OPINION OF
                         COUNSEL IN FORM AND SUBSTANCE SATISFACTORY TO THE
                         COMPANY THAT SUCH OFFER, SALE OR TRANSFER, PLEDGE OR
                         HYPOTHECATION IS IN COMPLIANCE WITH THE ACT OR UNLESS
                         SOLD IN FULL COMPLIANCE WITH RULE 144 UNDER THE ACT.

                    (ii) THE SECURITIES REPRESENTED BY THIS CERTIFICATE ARE
                         SUBJECT TO A LOCK-UP PERIOD OF UP TO 180 DAYS FOLLOWING
                         THE EFFECTIVE DATE OF A REGISTRATION STATEMENT OF THE
                         COMPANY FILED UNDER THE SECURITIES ACT OF 1933, AS
                         AMENDED, AS SET FORTH IN THE 8% CONVERTIBLE
                         SUBORDINATED PROMISSORY NOTE BETWEEN THE COMPANY AND
                         THE ORIGINAL HOLDER OF THE SECURITIES, A COPY OF WHICH
                         MAY BE OBTAINED AT THE PRINCIPAL OFFICE OF THE COMPANY.
                         SUCH LOCK-UP PERIOD IS BINDING ON TRANSFEREES OF THESE
                         SECURITIES.

                                     -28-
<PAGE>

                    (iii)  Any legend required by the laws of the State of
                           California, including any legend required by the
                           California Department of Corporations and Sections
                           417 and 418 of the Code.


          (d) California Commissioner of Corporations. THE SALE OF THE
              ---------------------------------------
SECURITIES WHICH ARE THE SUBJECT OF THIS AGREEMENT AND THE PROMISSORY NOTE HAS
NOT BEEN QUALIFIED WITH THE COMMISSIONER OF CORPORATIONS OF THE STATE OF
CALIFORNIA AND THE ISSUANCE OF SUCH SECURITIES OR THE PAYMENT OR RECEIPT OF ANY
PART OF THE CONSIDERATION FOR SUCH SECURITIES PRIOR TO SUCH QUALIFICATION IS
UNLAWFUL, UNLESS THE SALE OF SECURITIES IS EXEMPT FROM QUALIFICATION BY SECTION
25100, 25102 OR 25105 OF THE CALIFORNIA CORPORATIONS CODE. THE RIGHTS OF ALL
PARTIES TO THIS AGREEMENT AND THE PROMISSORY NOTE ARE EXPRESSLY CONDITIONED UPON
SUCH QUALIFICATION BEING OBTAINED, UNLESS THE SALE IS SO EXEMPT.

          (e) Market Stand-Off Agreement. During the period of duration (not to
              --------------------------
exceed 180 days) specified by COMPS and an underwriter of Common Stock or other
securities of COMPS, following the effective date of any registration statement
of COMPS filed under the Act, the Company shall not, to the extent requested by
COMPS and such underwriter, directly or indirectly sell, offer to sell, contract
to sell (including, without limitation, any short sale), grant any option to
purchase or otherwise transfer or dispose of (other than to transferees or
donees who agree to be similarly bound) any securities of COMPS held by it at
any time during such period except Common Stock included in such registration.
In order to enforce the foregoing covenant, COMPS may impose stop-transfer
instructions with respect to the Common Stock of the Company (and the shares or
securities of every other person subject to the foregoing restriction) until the
end of such period.

     5.6  Post-Closing Subscription and Server Hosting Covenants.
          ------------------------------------------------------

          (a)  The Stockholder hereby represents and warrants that it will at no
cost to COMPS, provide a physical space, accessible by COMPS employees and
service providers, and electrical power necessary to operate the web server for
CBN at the offices of the Stockholder for one (1) year after the Closing. The
Stockholder agrees to provide access to the CBN web server at the Stockholder's
Office through December 31, 1999.

          (b)  Bruce Brooks hereby represents and warrants that he will, at no
cost to COMPS, host and maintain the server necessary to operate the CBN at the
offices of the Stockholder for one (1) year after the Closing.

                                  ARTICLE VI


                                 MISCELLANEOUS
                                 -------------

     6.1  Notices. All notices, requests and other communications hereunder must
          -------
be in writing and will be deemed to have been duly given only if delivered
personally against written receipt or by facsimile transmission with answer back
confirmation or mailed (postage prepaid

                                     -29-
<PAGE>

by certified or registered mail, return receipt requested) or by overnight
courier to the parties at the following addresses or facsimile numbers:

          If to Sellers, to:

               ARA-D/FW, Inc.
               712 Congress Avenue
               Austin, Texas  78701
               Facsimile No: ______________
               Attention: _________________



               American Realty, Inc.
               712 Congress Avenue #200
               Austin, Tx. 78701
               Facsimile No.:______________
               Attention: _________________

          If to COMPS, to:

               COMPS.COM, INC.
               9888 Carroll Centre Road, Suite 100
               San Diego, CA  92126-4580
               Facsimile No:  (619) 684-3292
               Attention:  Christopher A. Crane

          with copies to:

               Brobeck, Phleger & Harrison LLP
               550 West "C" Street
               Suite 1300
               San Diego, CA  92101
               Facsimile No.:  (619) 234-3848
               Attention:  Craig S. Andrews, Esq.

All such notices, requests and other communications will (i) if delivered
personally to the address as provided in this Section 6.1, be deemed given upon
                                              -----------
delivery, (ii) if delivered by facsimile transmission to the facsimile number as
provided in this Section 6.1, be deemed given upon receipt, and (iii) if
                 -----------
delivered by mail in the manner described above to the address as provided in
this Section 6.1, be deemed given upon receipt (in each case regardless of
     -----------
whether such notice, request or other communication is received by any other
Person to whom a copy of such notice, request or other communication is to be
delivered pursuant to this Section).  Any party from time to time may change its
address, facsimile number or other information for the purpose of notices to
that party by giving notice specifying such change to the other parties hereto.

     6.2  Entire Agreement. This Agreement (and all Exhibits and Schedules
          ----------------
attached hereto, all other documents delivered in connection herewith)
supersedes all prior discussions

                                     -30-
<PAGE>

and agreements among the parties with respect to the subject matter hereof and
contains the sole and entire agreement among the parties hereto with respect
thereto.

     6.3  Waiver. Any term or condition of this Agreement may be waived at any
          ------
time by the party that is entitled to the benefit thereof, but no such waiver
shall be effective unless set forth in a written instrument duly executed by or
on behalf of the party waiving such term or condition. No waiver by any party
hereto of any term or condition of this Agreement, in any one or more instances,
shall be deemed to be or construed as a waiver of the same or any other term or
condition of this Agreement on any future occasion. All remedies, either under
this Agreement or by law or otherwise afforded, will be cumulative and not
alternative.

     6.4  Amendment. This Agreement may be amended, supplemented or modified
          ---------
only by a written instrument duly executed by or on behalf of each party hereto.

     6.5  No Third Party Beneficiary. The terms and provisions of this Agreement
          --------------------------
are intended solely for the benefit of each party hereto and their respective
successors or permitted assigns, and it is not the intention of the parties to
confer third-party beneficiary rights upon any other Person other than any
Person entitled to indemnity under Section 6.5.
                                   -----------

     6.6  No Assignment; Binding Effect. Neither this Agreement nor any right,
          -----------------------------
interest or obligation hereunder may be assigned by any party hereto without the
prior written consent of the other parties hereto and any attempt to do so will
be void, except that any party's rights to indemnification under Article 5 may
                                                                 ---------
be freely assigned. This Agreement is binding upon, inures to the benefit of and
is enforceable by the parties hereto and their respective successors and
assigns.

     6.7  Headings. The headings used in this Agreement have been inserted for
          --------
convenience of reference only and do not define or limit the provisions hereof.

     6.8  Severability. If any provision of this Agreement is held to be
          ------------
illegal, invalid or unenforceable under any present or future law, and if the
rights or obligations of any party hereto under this Agreement will not be
materially and adversely affected thereby, (i) such provision will be fully
severable, (ii) this Agreement will be construed and enforced as if such
illegal, invalid or unenforceable provision had never comprised a part hereof,
(iii) the remaining provisions of this Agreement will remain in full force and
effect and will not be affected by the illegal, invalid or unenforceable
provision or by its severance herefrom and (iv) in lieu of such illegal, invalid
or unenforceable provision, there will be added automatically as a part of this
Agreement a legal, valid and enforceable provision as similar in terms to such
illegal, invalid or unenforceable provision as may be possible and mutually
acceptable to the parties herein.

     6.9  Governing Law. This Agreement shall be governed by and construed in
          -------------
accordance with the laws of the State of Texas applicable to contracts executed
and performed in such State, without giving effect to conflicts of laws
principles.

     6.10 Arbitration and Venue. Any controversy or claim arising out of or
          ---------------------
relating to this Agreement or the making, performance or interpretation thereof
shall be submitted to arbitration in San Diego, California, pursuant to the
rules and procedures of the American Arbitration Association before a panel of
three arbitrators. The ruling of the arbitrator shall be

                                     -31-
<PAGE>

final, and judgment thereon may be entered in any court having jurisdiction. If
any question is submitted to a court of law for resolution, then the Superior
Court of the County of San Diego or the United States District Court having
jurisdiction in the County of San Diego shall be the exclusive court of
competent jurisdiction for the resolution of such question. Each party will bear
one half of the cost of the arbitration filing and hearing fees, and the cost of
the arbitrator. Each party will bear its own attorneys' fees, unless otherwise
decided by the arbitrator. The parties understand and agree that the arbitration
shall be instead of any civil litigation and that the arbitrator's decision
shall be final and binding to the fullest extent permitted by law and
enforceable by any court having jurisdiction thereof. Each party shall be
entitled to pre-hearing discovery as provided in California Code of Civil
Procedure Section 1283.05

     6.11  Consent to Jurisdiction and Forum Selection. The parties hereto agree
           -------------------------------------------
that all actions or proceedings arising in connection with this Agreement shall
be initiated and tried exclusively in the State and Federal courts located in
the County of San Diego, State of California. The aforementioned choice of venue
is intended by the parties to be mandatory and not permissive in nature, thereby
precluding the possibility of litigation between the parties with respect to or
arising out of this Agreement in any jurisdiction other than that specified in
this Section 6.11. Each party hereby waives any right it may have to assert the
     ------------
doctrine of forum non conveniens or similar doctrine or to object to venue with
respect to any proceeding brought in accordance with this paragraph, and
stipulates that the State and Federal courts located in the County of San Diego,
State of California shall have in personam jurisdiction and venue over each of
them for the purposes of litigating any dispute, controversy or proceeding
arising out of or related to this Agreement. Each party hereby authorizes and
accepts service of process sufficient for personal jurisdiction in any action
against it as contemplated by this Section 6.11 by registered or certified mail,
                                   ------------
return receipt requested, postage prepaid, to its address for the giving of
notices as set forth in this Agreement, or in the manner set forth in Section
                                                                      -------
6.1 of this Agreement for the giving of notice. Any final judgment rendered
- ---
against a party in any action or proceeding shall be conclusive as to the
subject of such final judgment and may be enforced in other jurisdictions in any
manner provided by law.

     6.12  Expense. Except as otherwise provided in this Agreement, the Sellers
           -------
and COMPS shall pay their own expenses and costs incidental to the preparation
of this Agreement and to the consummation of the transactions contemplated
hereby.

     6.13  Construction. No provision of this Agreement shall be construed in
           ------------
favor of or against any party on the ground that such party or its counsel
drafted the provision. Any remedies provided for herein are not exclusive of any
other lawful remedies which may be available to either party. This Agreement
shall at all times be construed so as to carry out the purposes stated herein.

     6.14  Counterparts. This Agreement may be executed in any number of
           ------------
counterparts and by facsimile, each of which will be deemed an original, but all
of which together will constitute one and the same instrument.


               [REMAINDER OF THIS PAGE INTENTIONALLY LEFT BLANK]

                                     -32-
<PAGE>

     IN WITNESS WHEREOF, this Agreement has been duly executed and delivered by
the parties hereto as of the date first above written.

                              "COMPS"

                              COMPS.COM, INC.,

                              a Delaware corporation

                              By:  /s/ CHRIS FENTON
                                 ------------------------------
                                 Chris Fenton
                                 Vice President

                              "COMPANY"

                              ARA-D/FW, INC.,
                              a Texas corporation

                              By: /s/ BRUCE BROOKS
                                 ------------------------------

                              Name: Bruce Brooks
                                   ----------------------------

                              Title: Vice President
                                     --------------------------


                              "STOCKHOLDER"

                              AMERICAN REALTY, INC.


                              By: /s/ BRUCE BROOKS
                                 ------------------------------

                              Name:  Bruce Brooks
                                   ----------------------------

                              Title:  Vice President
                                    ---------------------------


                 [SIGNATURE PAGE TO ASSET PURCHASE AGREEMENT]

<PAGE>

                                                                    EXHIBIT 99.1


FOR IMMEDIATE RELEASE
WEDNESDAY, SEPTEMBER 1, 1999

COMPS.COM ANNOUNCES ACQUISITION OF COMMERCIAL BROKER'S NETWORK AND THE FLICK
REPORT OF AUSTIN, TEXAS

 .  Combined with the August acquisition of the Baca Information Group of
   Houston, Texas, COMPS.COM further establishes its position as market leader
   in Texas commercial real estate information

 .  Both acquisitions complement the established COMPS.COM sales comparables and
   for sale listing business in Dallas/Ft. Worth, Austin, San Antonio and
   Houston

SAN DIEGO, CA, September 1, 1999 -- COMPS.COM (NASDAQ: CDOT) today reported it
has significantly expanded its operations in Texas, one of the largest
commercial real estate markets in the country, by acquiring the assets of the
Flick Report and the COMMERCIAL Broker's Network of Austin, Texas. The Flick
Report is a bi-monthly publication serving the commercial real estate leasing
and sales markets in the Austin and central Texas area. The COMMERCIAL Broker's
Network is an Internet marketing tool for commercial property leases and for
sale properties (http://www.combroker.com). Terms regarding the transaction were
                 ------------------------
not disclosed.

Christopher A. Crane, Chief Executive Officer of COMPS.COM, said "We are excited
about the addition of the Flick Report and the COMMERCIAL Broker's Network. The
Flick Report is a market-leading publication that is recognized in the Central
Texas area as the primary source of commercial real estate information. Combined
with the Baca Information Group acquisition earlier this month, this transaction
establishes COMPS.COM as a major player in the Texas commercial real estate
information industry. Three of the ten largest cities in the US are in Texas, so
it is important that COMPS.COM invest in this rapidly growing and prosperous
area. The COMMERCIAL Broker's Network Internet platform complements COMPS.COM's
Internet delivery platform and gives us a head start in providing our customers
in Texas with Internet information and transaction services."

Elliott Flick of the Flick Report and the COMMERCIAL Broker's Network, commented
"We are pleased to become part of COMPS.COM because we share the same philosophy
about the real estate business - that real estate information is essentially
local to the market and you need to build from the grass roots up. The Internet
offers innumerable opportunities for our industry and at combroker.com we have
made substantial progress toward meeting our customers needs. With COMPS.COM's
resources, we will be able to accelerate that effort, solidify our leadership
position in the Central Texas market, and contribute to COMPS.COM's Internet
activities."

COMPS.COM went public in May 1999, selling 4.5 million shares of common stock
and raising net proceeds of approximately $62.2 million.

                                   - more -
<PAGE>

COMPS.COM is a national provider of comprehensive commercial real estate sales
information and services both offline and on the Internet. Over the last 17
years, the Company has developed a highly evolved data collection and
confirmation system to provide information on commercial real estate properties.
This information is verified by the Company's researchers and includes sale
prices, income and expenses, capitalization rates, loan data, property
photographs, buyers, sellers, brokers and other key details.

Some of the information in this press release may contain projections or other
forward-looking statements regarding future events or the future financial
performance of the Company. We wish to caution you that these statements are
only predictions and that actual events or results may differ materially. We
refer you to the documents the Company files from time to time with the
Securities and Exchange Commission, specifically, the Company's most recent
Registration Statement on Form S-1 and subsequent Form 10Qs.  These documents
contain and identify important factors that could cause the actual results to
differ materially from those contained in our projections or forward-looking
statements, including, among others, ability to successfully integrate our
Internet platforms with those of acquired companies, ability to achieve
geographic expansion, uncertainty of achieving profitability, little history
offering our products over the Internet, need to continue to develop and offer
new products, fluctuations in our quarterly results, volatility of stock price,
and future growth subject to risks.  We undertake no obligation to update the
statements made in this press release as the facts change.

Please visit the COMPS.COM web site www.comps.com for additional information
about the Company, its products and services.

                                     # # #


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