CROWN CASTLE INTERNATIONAL CORP
8-K, 1998-12-10
COMMUNICATIONS SERVICES, NEC
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<PAGE>
 
                       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): December 9, 1998



                        CROWN CASTLE INTERNATIONAL CORP.
             (Exact Name of Registrant as Specified in its Charter)


Delaware                     333-43873                   76-0470458
(State or Other            (Commission File              (IRS Employer
Jurisdiction of                Number)                   Identification
Incorporation)                                           Number)

                                510 Bering Drive
                                   Suite 500
                               Houston, TX 77057
                    (Address of Principal Executive Office)

Registrant's telephone number, including area code:  (713) 570-3000
<PAGE>

                          Forward-Looking Statements

          This document includes "forward-looking" statements within the meaning
of Section 27A of the Securities Act of 1933 and Section 21E of the Securities 
Exchange Act of 1934. Other than statements of historical fact, all statements 
regarding industry prospects and the Company's expectations regarding the future
performance of its businesses and its financial position are forward-looking 
statements. These forward-looking statements are subject to numerous risks and 
uncertainties, including but not limited to the uncertainties relating to 
capital expenditures decisions to be made in the future by wireless 
communications carriers and broadcasters and the risks and uncertainties 
described in "Risk Factors" in the Company's Registration Statement on Form S-1,
as amended (Reg. No. 333-57283) (the "Registration Statement") filed with the 
Securities and Exchange Commission.


                                    #  #  #

 
          Capitalized terms used but not defined herein shall have the meaning 
assigned thereto in the Registration Statement.

ITEM 5. OTHER EVENTS

          On December 9, 1998, Crown Castle International Corp. ("CCIC" or the 
"Company") announced that it is offering (the "Offering") $200 million of its 
senior exchangeable pay-in-kind preferred stock in a Rule 144A/Regulation S 
distribution.  A copy of the press release issued by CCIC on December 9, 1998 
with respect to the Offering is attached hereto as Exhibit 99.1 and is 
incorporated herein by reference.

          The Company also announced that on December 8, 1998 it entered into an
agreement (the "Formation Agreement") with Cellco Partnership, a Delaware
general partnership doing business as Bell Atlantic Mobile ("BAM"), certain of
the Transferring Partnerships (as defined in the Formation Agreement), the
Company and CCA Investment Corp., a wholly owned subsidiary of the Company
("Company Sub"), to form a joint venture (the "Proposed JV") to own and operate
a significant majority of BAM's wireless communications towers. The Company
would own approximately 62.3% of the Proposed JV and BAM and the Transferring
Partnerships would own the remaining 37.7% along with a 0.001% interest in the
joint venture's operating subsidiary. For financial reporting purposes, the
Company intends to consolidate the Proposed JV's results of operations and
financial condition with its own.

          The day-to-day operations of the Proposed JV will be managed by the 
Company.  The Proposed JV will actively seek to add additional tenants to its 
towers in order to increase its revenues.  The Proposed JV will also construct 
and own new towers that are needed by BAM's wireless communications business.  
The Proposed JV will have regional offices that will be staffed primarily with 
employees of the Company to perform marketing, billing, operations and 
maintenance functions.

          Although the Proposed JV is expected to be formed during the first 
quarter of 1999, the Formation Agreement is subject to a number of significant 
conditions.  There can be no assurance that the Proposed JV will be formed on 
the terms described in this document or at all.

Communication Site Footprints
 
  The following table indicates, as of September 30, 1998, the type and
geographic concentration of the Company's and the Proposed JV's owned and
managed towers and revenue producing rooftop sites:
 
<TABLE>
<CAPTION>
                                                          U.S. Total
                                             The Proposed    After       % of
                                        CCIC      JV      Proposed JV U.S. Total
 Towers:                                ---- ------------ ----------- ----------
<S>                                     <C>  <C>          <C>         <C>
  Pennsylvania........................  213       212(a)       320       16.5
  Texas...............................  154        43          197       10.2
  South Carolina......................   12       161          173        9.0
  Arizona.............................   12       152          164        8.5
  North Carolina......................   11       137          148        7.6
  New Jersey..........................    1       142          143        7.4
  New York............................   --       119          119        6.1
  Maryland............................   --       108          108        5.6
  Massachusetts.......................   --        81           81        4.2
  New Mexico..........................   34        36           70        3.6
  Virginia............................   --        57           57        2.9
  Connecticut.........................   --        39           39        2.0
  Louisiana...........................   24        13           37        1.9
  Mississippi.........................   21         8           29        1.5
  Delaware............................   --        24           24        1.2
  New Hampshire.......................   --        23           23        1.2
  Georgia.............................   --        21           21        1.1
  West Virginia.......................   18        13(b)        19        1.0
  Ohio................................   19        --           19        1.0
  Puerto Rico.........................   14        --           14        0.7
  Rhode Island........................   --        13           13        0.7
  All Others..........................   15        25(c)        40        1.9
                                        ---     -----        -----      -----
                                        548     1,427(d)     1,858       95.8
 Rooftops(e)..........................   81        --           81        4.2
                                        ---     -----        -----      -----
   U.S. Total.........................  629     1,427(d)     1,939      100.0%
                                        ===     =====        =====      =====
</TABLE>
(a)Includes 105 towers currently managed by the Company.
(b)Includes 12 towers currently managed by the Company.
(c)Includes 13 towers that have not yet been identified.
(d)Includes 117 towers currently managed by the Company.
(e) The Company manages an additional 1,286 rooftop sites throughout the
    United States that do not currently produce revenue but are available for
    leasing to its customers.
 
  The following descriptions of the agreements related to the Proposed JV are
summaries of the material portions of those agreements. 
 
                                      1
<PAGE>

Formation Agreement

  Formation of the Proposed JV. Pursuant to the Formation Agreement, Company Sub
will contribute $250.0 million in cash and approximately 15.6 million shares of
common stock (valued at $197.0 million) of the Company to the Proposed JV. BAM
and the Transferring Partnerships will transfer approximately 1,427 towers along
with related assets and liabilities to the Proposed JV. The Proposed JV will
borrow $180.0 million under a committed $250.0 million revolving credit
facility. The joint venture will make a $380.0 million cash distribution to BAM.
 
  Concurrently with the formation of the joint venture, BAM and the Proposed JV
will enter into a master build-to-suit agreement (the "Build-to-Suit
Agreement"), a global lease agreement (the "Global Lease") and a transitional
services agreement and the Company and the Proposed JV will enter into a
services agreement.
 
  Terms and Conditions. In connection with its contribution of assets and
liabilities to the Proposed JV, BAM is making certain representations and
warranties to the Proposed JV concerning the contributed assets and liabilities.
In general, the Proposed JV will have until June 30, 2000, to raise any claims
for indemnification for breaches of the representations and warranties by BAM.
However, BAM's indemnification obligations are subject to a number of
significant limitations including a per occurrence deductible of $25,000, an
aggregate deductible of $7.5 million and an absolute cap of $195.0 million.
 
  The formation of the Proposed JV is subject to a number of significant
conditions. These conditions include:
 
  . accuracy of the representations and warranties of BAM and the Company;
 
  . receipt of bank financing by the Proposed JV;
 
  . receipt of certain third party consents required for the transfer of the
    tower assets to the Proposed JV;
 
  . receipt of regulatory approvals;
 
  . absence of litigation;
 
  . receipt of certain environmental studies; and
 
  . absence of any material adverse effect with respect to the business, assets,
    operations, conditions (financial or otherwise) or prospects of the Company
    and its subsidiaries taken as a whole.
 
There can be no assurance that these conditions will be satisfied or waived.
If they are not satisfied or waived, the Proposed JV may not be formed on the
terms described in this document or at all. 
 
Build-to-Suit Agreement
 
  In connection with the formation of the Proposed JV, BAM and the Proposed JV
will enter into the Build-to-Suit Agreement. Pursuant to the Build-to-Suit
Agreement and subject to certain conditions, BAM and the Proposed JV have agreed
that (i) the next 500 towers to be built for BAM's wireless communications
business will be constructed and owned by the Proposed JV and (ii) immediately
thereafter the Proposed JV will have a right of first refusal to construct the
next 200 additional towers to be built for BAM. BAM is required to submit these
700 site proposals to the Proposed JV during the five-year period following the
formation of the joint venture; however, the five-year period will be extended
for additional one-year periods, until 700 site proposals are submitted to the
Proposed JV. The Proposed JV will be required to build towers in the general
vicinity of the locations proposed by BAM. Upon completion of a tower, it will
become subject to the Global Lease (as discussed below). Space not leased by BAM
or its affiliates on each tower is available for lease by the Proposed JV to
third parties.
 
  The Build-to-Suit Agreement sets out various time periods for BAM to identify
its tower needs within certain search areas, and for the Proposed JV to locate
sites and to thereafter complete site acquisition and development work,
including permitting and construction.
 
Global Lease
 
  In connection with the formation of the Proposed JV, BAM and the Proposed JV
will enter into the Global Lease. All of the approximately 1,427 towers to be
acquired by the Proposed JV from BAM and the Transferring Partnerships pursuant
to the Formation Agreement, and all towers constructed by the Proposed JV
pursuant to the Build-to-Suit Agreement, will be governed by the Global Lease.
The average monthly rent on the 1,427 towers contributed to the Proposed JV by
BAM will be approximately $1,850. Minimum monthly rents on the towers built
pursuant to the Build-to-Suit Agreement will range from $1,250 to $1,833
depending on the region in which the tower is located. These rents may increase
based on the amount of BAM's equipment to be installed at a site. Rents are
subject to annual increase based on the consumer price index, subject to certain
adjustments. For all sites, the initial lease term is ten years. BAM has the
right to extend any lease for three additional five-year terms and one
additional term of four years and eleven months. Each lease will automatically
renew for an optional term unless BAM notifies the Proposed JV at least six
months before the then current term expires. Space not leased by BAM or its
affiliates on each tower is available for lease by the Proposed JV to third
parties.

                                      2 
<PAGE>

Operating Agreements
 
  In connection with the formation of the Proposed JV, BAM and Company Sub
would enter into limited liability company operating agreements that will
establish and govern the limited liability companies comprising the Proposed
JV.

  Governance. The business and affairs of the Proposed JV will be managed by
its managers under the supervision of a board of representatives. Each manager
will be selected by Company Sub. Members of the board of representatives will
be selected by each of BAM and Company Sub in proportion to their ownership
interests in the Proposed JV. The board of representatives initially will have
six members, with two selected by BAM and four selected by Company Sub. So
long as BAM maintains at least a 5.0% interest in the Proposed JV, it will
maintain the right to designate at least one member of the board of
representatives.
 
  The managers will operate the Proposed JV on a day-to-day basis. In general,
the managers will have the power and authority to take all necessary or
appropriate actions to conduct the Proposed JV's business in accordance with
its then current business plan. Actions requiring the approval of the board of
representatives generally will be authorized upon the affirmative vote of a
majority of the members of the board of representatives. However, the
following actions will require the mutual consent of BAM and Company Sub,
either by written consent or by the approval of representatives of each of BAM
and Company Sub at a meeting of the board of representatives:
 
  . engaging in any business other than owning, acquiring, constructing,
    leasing and operating communications towers in the United States;
 
  . taking any voluntary action that would cause the Proposed JV to be
    insolvent or voluntarily entering into a bankruptcy proceeding;
 
  . incurring any debt other than (i) the revolving credit facility (the
    "Proposed JV Credit Facility") proposed to be entered into by the Proposed
    JV and committed to by Key Corporate Capital Inc. and (ii) ordinary course
    trade payables;
 
  . incurring any liens;
 
  . issuing any additional equity interests in the Proposed JV;
 
  . becoming liable with respect to contingent obligations such as guarantees
    or the obligation to make take-or-pay or similar payments;
 
  . failing to preserve the Proposed JV's existence under Delaware law or its
    qualification to do business in each jurisdiction in which such
    qualification is necessary or desirable;
 
  . mergers or consolidations;
 
  . sales of assets outside the ordinary course;
 
  . entry into contracts with affiliates except in the ordinary course and on
    an arm's-length basis;
 
  . any dividends or distributions; provided, if the Proposed JV has been
    dissolved and the Proposed JV Credit Facility has been repaid in full,
    BAM's consent will not be required;
 
  . the determination of the methodology to be used in calculating payments
    under the management agreement and the services agreement pursuant to
    which the Company will manage and provide services to the Proposed JV;
 
  . approval of the business plan;
 
  . entry into contracts that (1) restrict the business activities of the
    Proposed JV in any geographic area, (2) contain exclusivity provisions,
    (3) are inconsistent with any of the agreements entered into in
    connection with the formation of the Proposed JV or (4) provide for the
    purchase or sale of goods or services involving an amount in excess of
    $10.0 million per year; and
 
  . exercising any voting rights with respect to the shares of common stock
    of the Company held by the Proposed JV; provided, if BAM and Company Sub
    do not agree as to how the shares should be voted, the shares will be
    voted pro rata with all shares of Common Stock of the Company voted on
    the matter.

   Restrictions on Transfers of Interests; Rights of First Refusal; Tag-Along
Rights. Except for transfers to wholly owned affiliates, neither BAM nor
Company Sub may transfer its interest in the Proposed JV to a third party
unless it first offers its interest to the other on terms and conditions,
including price, no less favorable than the terms and conditions on which it
proposes to sell its interest to the third party. In addition, if BAM or
Company Sub wishes to transfer its interest in the Proposed JV to a third
party, the other party will have the right to require the third party, as a
condition to the sale, to purchase a pro rata portion of its interest in the
Proposed JV on the same terms and conditions, including price. BAM may only
transfer its 0.001% interest in the operating subsidiary of the Proposed JV to
its wholly owned affiliates or in connection with a merger or consolidation
transaction to which BAM or Bell Atlantic Corporation is a party.

                                       3
<PAGE>

  Dissolution of the Proposed JV. BAM and the Company have agreed that upon a
dissolution of the Proposed JV, in satisfaction of their respective interests in
the Proposed JV, the Company would receive all the assets and liabilities of the
Proposed JV other than the approximately 15.6 million shares of its common stock
held by the Proposed JV and BAM would receive all of the shares of common stock
of the Company held by the Proposed JV and a payment from the Company, equal to
14.0% of the fair market value of the assets and liabilities of the joint
venture (other than the Company's common stock), to be made in cash or common
stock of the Company (as elected by the Company). BAM would continue to retain
its 0.001% interest in the joint venture's operating subsidiary. For so long as
it retains such interest, the operations formerly included in the Proposed JV
would remain subject to the operating restrictions set forth under "--
Governance". A dissolution of the Proposed JV may be triggered (1) by BAM at any
time following the third anniversary of the formation of the Proposed JV and (2)
by the Company at any time following the fourth anniversary of its formation;
however, if the Company triggers the dissolution prior to the seventh
anniversary, it may be required to make additional cash payments to BAM.
 
Transitional Services Agreement; Services Agreement
 
  In connection with the formation of the Proposed JV, BAM and the Proposed JV
are expected to enter into a transitional services agreement pursuant to which
BAM will provide the Proposed JV with services necessary to ensure a smooth
transition of the business to the Proposed JV. In addition, the Company and
the Proposed JV are expected to enter into the services agreement pursuant to
which the Company will provide the Proposed JV with certain services.
 
  A copy of the press release issued by CCIC and BAM on December 9, 1998 with 
respect to the Proposed JV is attached hereto as Exhibit 99.2 and is 
incorporated herein by reference. A copy of the Formation Agreement is attached 
hereto as Exhibit 99.3 and is incorporated herein by reference.

LIQUIDITY AND CAPITAL RESOURCES
 
  As of September 30, 1998, after giving pro forma effect to the Offering, the
Company would have had consolidated cash and cash equivalents of $322.3
million (including $18.2 million at CTI), consolidated long-term debt of
$425.3 million, consolidated redeemable preferred stock of $200.0 million and
consolidated stockholders' equity of $745.1 million. In addition, on December
8, 1998, the Company entered into a Formation Agreement with BAM in which the
Company agreed to contribute $250.0 million in cash to the Proposed JV. As of
September 30, 1998, after giving pro forma effect to the Offering and the
Proposed JV, the Company would have had consolidated cash and cash equivalents
of $114.0 million (including $18.2 million at CTI), consolidated long-term
debt of $605.3 million, consolidated redeemable preferred stock of $200.0
million and consolidated stockholders' equity of $942.1 million.
 
  As of November 1, 1998, CCI and its subsidiaries had no significant unused
borrowing availability under the Senior Credit Facility, and CTI had unused
borrowing availability under the CTI Credit Facility of approximately
(Pounds)30.0 million ($51.0 million). As of September 30, 1998, after giving
pro forma effect to the Offering, CCI and its subsidiaries and CTI and its
subsidiaries would have had approximately $ 73.9 million and (Pounds)30.0
million ($51.0 million) of unused borrowing availability, respectively, under
the Senior Credit Facility and the CTI Credit Facility. At formation of the
joint venture, the Proposed JV will borrow $180.0 million under a committed
$250.0 million credit facility. The Senior Credit Facility and the CTI Credit
Facility require, and the Proposed JV Credit Facility will require, that the
respective borrowers maintain certain financial covenants; in addition, all
three credit facilities place restrictions on the ability of the Company and its
subsidiaries to, among other things, incur debt and liens, pay dividends, make
capital expenditures, undertake transactions with affiliates and make
investments. These facilities also limit the ability of the Company's
subsidiaries to pay dividends to CCIC.
 
  The Company's business strategy contemplates substantial capital
expenditures in connection with (i) the expansion of its tower footprints by
partnering with wireless communications carriers to assume ownership of their
existing towers and by pursuing build-to-suit opportunities and (ii) to
acquire existing transmission networks globally as opportunities arise. The
exact amount of such capital expenditures will depend on the
 
                                       4
<PAGE>

number of such opportunities that the Company is able to successfully
consummate. In addition to the Proposed JV, the Company is currently pursuing
other potential significant acquisitions, investments and joint venture
opportunities that could require the Company to use all remaining proceeds of
this Offering and to raise additional debt or equity financing in the near
term. However, there can be no assurance that the Company will consummate any
of these transactions in the near term or at all.
 
  In addition, the Company anticipates that it will build, through the end of
1999, approximately 600 towers in the United States at a cost of approximately
$135.0 million and approximately 200 towers in the United Kingdom at a cost of
approximately $23.0 million. The Company also expects that the capital
expenditure requirements related to the roll-out of digital broadcast
transmission in the United Kingdom will be approximately (Pounds)110.0 million
($187.0 million). Capital expenditures were $77.7 million for the nine months
ended September 30, 1998, of which $3.4 million was for CCIC, $62.1 million
was for Crown and $12.2 million was for CTI. On a pro forma basis after giving
effect to the Proposed JV, capital expenditures (excluding acquisitions) would
have been $74.1 million for the year ended December 31, 1997 (of which $3.4
million would have been for CCIC and TEA, $27.1 million would have been for
Crown, $17.6 million would have been for the Proposed JV and $26.0 million
would have been for CTI), and $140.0 million for the nine months ended
September 30, 1998 (of which $3.4 million would have been for CCIC, $62.1
million would have been for Crown, $2.5 million would have been for the
Proposed JV and $72.0 million would have been for CTI). The Company has
budgeted capital expenditures (excluding acquisitions) of $62.0 million for
the three months ended December 31, 1998 and $337.0 million for the fiscal
year ended December 31, 1999 (of which $37.0 million is budgeted for the
Proposed JV).
 
  To fund the execution of the Company's business strategy, the Company and
its subsidiaries expect to use the net proceeds of the Offering, the
borrowings available under the Senior Credit Facility, the borrowings
available under the CTI Credit Facility and the remaining net proceeds from
the 1997 Notes Offering and the initial public offering of the Company's Common 
Stock (the "IPO"). Whether the Company utilizes the Senior Credit Facility and
the CTI Credit Facility to finance expansion opportunities will depend upon a
number of factors, including (i) the attractiveness of the opportunities, (ii)
the time frame in which they are identified, (iii) the number of pre-existing
projects to which the Company is committed and (iv) the Company's liquidity at
the time of any potential opportunity. In the event the Company does not
otherwise have cash available (from the net proceeds of the 1997 Notes Offering,
the IPO, this Offering or otherwise), or borrowings under the Senior Credit
Facility or the CTI Credit Facility have otherwise been utilized, when an
opportunity arises, the Company would be forced to seek additional debt or
equity financing or to forego the opportunity. In the event the Company
determines to seek additional debt or equity financing, there can be no
assurance that any such financing will be available (on commercially acceptable
terms or at all) or permitted by the terms of the Company's existing
indebtedness. To the extent the Company is unable to finance future capital
expenditures, it will be unable to achieve its currently contemplated business
strategy.
 
  For the nine months ended September 30, 1997 and 1998, the Company's net
cash provided by (used for) operating activities was ($2.1 million) and $3.4
million, respectively. For the years ended December 31, 1995, 1996 and 1997,
the Company's net cash provided by (used for) operating activities was $1.7
million ($0.5 million) and ($0.6 million), respectively. Since its inception,
the Company has generally funded its activities (other than its acquisitions
and investments) through excess proceeds from contributions of equity capital.
The Company has financed its acquisitions and investments with the proceeds
from equity contributions, borrowings under the Senior Credit Facility and the
issuance of promissory notes to sellers. Since its inception, CTI has
generally funded its activities (other than the acquisition of the BBC Home
Service Transmission business from the BBC (the "BBC Home Service Transmission
Business")) through cash provided by operations and borrowings under the CTI
Credit Facility. CTI financed the acquisition of the BBC Home Service
Transmission Business with the proceeds from equity contributions and the
issuance of the CTI Bonds.
 
  On August 18, 1998, the Company consummated the IPO at a price to the public
of $13 per share. The Company sold 12,320,000 shares of its common stock and
received proceeds of $151.0 million (after underwriting discounts of $9.1
million but before other expenses of the IPO, which are expected to total
 
                                       5
<PAGE>

approximately $3.8 million). The net proceeds from the IPO were contributed to
an unrestricted subsidiary and are currently invested in short-term
investments.
 
  On August 18, 1998, the Company consummated a share exchange with certain
shareholders of CTI, which increased the Company's ownership of CTI from
approximately 34.3% to 80.0%. The Company issued 20,867,700 shares of its
Common Stock and 11,340,000 shares of its Class A Common Stock, with such
shares valued at an aggregate of $418.7 million (based on the price per share
to the public in the IPO). The Company recognized goodwill of $343.9 million
in connection with this transaction, which was accounted for as an acquisition
using the purchase method. CTI's results of operations and cash flows are
included in the consolidated financial statements for the period subsequent to
the date the exchange was consummated.
 
  In July 1998, all of the holders of the Company's Senior Convertible
Preferred Stock converted such shares into an aggregate of 9,629,200 shares of
the Company's common stock. Upon consummation of the IPO, all of the holders
of the Company's then-existing shares of Class A Common Stock, Class B Common
Stock, Series A Convertible Preferred Stock, Series B Convertible Preferred
Stock and Series C Convertible Preferred Stock converted such shares into an
aggregate of 39,842,290 shares of the Company's common stock.
 
  In August and October of 1997, CCIC issued shares of its Senior Convertible
Preferred Stock for aggregate net proceeds of $29.3 million and $36.5 million,
respectively. The proceeds from the August issuance were used to make a $25.0
million payment as part of the cash purchase price for the Crown Merger. On
October 31, 1997, the Company entered into an amendment to the Senior Credit
Facility. As amended, the Senior Credit Facility provides for available
borrowings of $100.0 million and expires on December 31, 2004. On October 31,
1997, in connection with the October Refinancing, new borrowings under the
Senior Credit Facility of $94.7 million, along with the proceeds from the
October issuance of the Senior Convertible Preferred Stock, were used to repay
the seller note issued in connection with the Crown Merger, to repay loans
outstanding under a credit agreement at CCI and to pay related fees and
expenses.
 
  CCIC used the net proceeds from the 1997 Notes Offering to repay
substantially all of its outstanding indebtedness, including borrowings under
the Senior Credit Facility, and to pay related fees and expenses. The balance
of the net proceeds from the 1997 Notes Offering is being used for general
corporate purposes.
 
  On October 8, 1998, the Company acquired all of the outstanding shares of
Millennium Communications Limited ("Millennium") for aggregate consideration
of $14.5 million, consisting of cash, CCIC common stock and the assumption of
indebtedness. Millennium develops, owns and operates telecommunications towers
and related assets in the United Kingdom. On the date of acquisition,
Millennium owned 102 tower sites. Millennium is being operated as a subsidiary
of CTI.
 
  On February 28, 1997, CTI used the proceeds from equity contributions and
borrowings under the CTI Credit Facility to finance the acquisition of the BBC
Home Service Transmission Business. On May 21, 1997, CTI used the net proceeds
from the sale of the CTI Bonds to repay substantially all of the outstanding
borrowings under the CTI Credit Facility. On July 17, 1998, the lenders
(acting through Credit Suisse First Boston, as agent) under the CTI Credit
Facility waived a provision in the CTI Credit Facility that would have
required the repayment of the CTI Credit Facility concurrently with the
listing of the Company's Common Stock.
 
  Prior to May 15, 2003, the Company's interest expense on the Notes will be
comprised solely of the amortization of original issue discount. Thereafter,
the Notes will require annual cash interest payments of approximately $26.7
million. Annual cash interest payments on the CTI Bonds are (Pounds)11.25
million ($19.1 million). In addition, the Senior Credit Facility and the CTI
Credit Facility will require periodic interest payments on amounts borrowed
thereunder. The Company's ability to make scheduled payments of principal of,
or to pay interest on, its debt obligations, and its ability to refinance any
such debt obligations (including the Notes and the CTI Bonds), will depend on
its future performance, which, to a certain extent, is subject to general
economic, financial, competitive, legislative, regulatory and other factors
that are beyond its control.
 
  As discussed above, the Company's business strategy contemplates substantial
acquisitions and capital expenditures in connection with the expansion of its
tower footprints. There can be no assurance that the Company will generate
sufficient cash flow from operations in the future, that anticipated revenue
growth will be realized or that future borrowings, equity contributions or
loans from affiliates will be available in an amount sufficient to service its
indebtedness and make anticipated capital expenditures. The Company
anticipates that it may need to refinance all or a portion of its indebtedness
(including the Notes and the CTI Bonds) on or prior to its scheduled maturity.
There can be no assurance that the Company will be able to effect any required
refinancings of its indebtedness (including the Notes and the CTI Bonds) on
commercially reasonable terms or at all.

                                      6 
<PAGE>

        UNAUDITED PRO FORMA CONDENSED CONSOLIDATED FINANCIAL STATEMENTS
 
  The following unaudited pro forma condensed consolidated financial
statements (the "Pro Forma Financial Statements") are based on the historical
financial statements of CCIC and the historical financial statements of the
entities acquired by CCIC (including TEA and Crown) during the periods
presented, adjusted to give effect to the following transactions
(collectively, the "Transactions"): (i) the CTI Investment, (ii) the TEA
Acquisition, (iii) the acquisition of TeleStructures (the "TeleStructures
Acquisition"), (iv) the Crown Merger (together with the acquisitions described
in clauses (i), (ii) and (iii), the "Historical Acquisitions"), (v) the 1997
Refinancing, (vi) the Roll-Up, (vii) the IPO, (viii) the Senior Preferred
Conversion, (ix) the Offering and (x) the Proposed JV.
 
  The Unaudited Pro Forma Condensed Consolidated Statement of Operations for
the year ended December 31, 1997 gives effect to the Transactions as if they
had occurred as of January 1, 1997, and the Unaudited Pro Forma Condensed
Consolidated Statement of Operations for the nine months ended September 30,
1998 gives effect to the Roll-Up, the IPO, the Senior Preferred Conversion,
the Offering and the Proposed JV as if they had occurred as of January 1,
1998. The Unaudited Pro Forma Condensed Consolidated Balance Sheet gives
effect to the Offering and the Proposed JV as if they had occurred as of
September 30, 1998. The pro forma adjustments are described in the
accompanying notes and are based upon available information and certain
assumptions that management believes are reasonable.
 
  Included in the notes accompanying the Pro Forma Financial Statements are
tables summarizing the unaudited pro forma results of operations and balance
sheet for CCIC and its Restricted Subsidiaries (as defined in the Indenture
governing the Notes, the "Indenture"); such group of companies is hereinafter
referred to as the "Restricted Group". The Restricted Group excludes CTI and
the Proposed JV, both of which are designated as Unrestricted Subsidiaries (as
defined in the Indenture).
 
  The Pro Forma Financial Statements do not purport to represent what CCIC's
results of operations or financial condition would actually have been had the
Transactions in fact occurred on such dates or to project CCIC's results of
operations or financial condition for any future date or period. 
 
  The Historical Acquisitions, the Roll-Up and the Proposed JV are accounted
for under the purchase method of accounting. The total purchase price for each
Historical Acquisition, the Roll-Up and the Proposed JV have been allocated to
the identifiable tangible and intangible assets and liabilities of the
applicable acquired business based upon CCIC's preliminary estimate of their
fair values with the remainder allocated to goodwill and other intangible
assets. The allocations of the purchase prices are subject to revision when
additional information concerning asset and liability valuations is obtained;
however, the Company does not expect that any such revisions will have a
material effect on its consolidated financial position or results of
operations. The Company has recorded the purchase price for the Roll-Up based
on (i) the number of shares of CCIC's Common Stock and Class A Common Stock
exchanged for shares of CTI 's capital stock and (ii) the price per share
received by CCIC from the IPO.
 
                                       7
<PAGE>
 
      UNAUDITED PRO FORMA CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS
 
                         YEAR ENDED DECEMBER 31, 1997
               (DOLLARS IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
 
<TABLE>
<CAPTION>
                                                                                                     PRO FORMA
                                                                                                        FOR
                                              ADJUSTMENTS        PRO                                HISTORICAL
                                                  FOR         FORMA FOR                            ACQUISITIONS,
                           HISTORICAL          HISTORICAL     HISTORICAL             ADJUSTMENTS       1997
                    ------------------------- ACQUISITIONS   ACQUISITIONS HISTORICAL     FOR       REFINANCING,  ADJUSTMENTS
                                HISTORICAL      AND 1997       AND 1997      CTI     ROLL-UP AND    ROLL-UP AND      FOR
                    CCIC(A)   ACQUISITIONS(A) REFINANCING    REFINANCING     (J)         IPO            IPO       OFFERING
                    --------  --------------- ------------   ------------ ---------- -----------   ------------- -----------
<S>                 <C>       <C>             <C>            <C>          <C>        <C>           <C>           <C>
Net revenues:
 Site rental and
 broadcast
 transmission.....  $ 11,010      $ 4,550       $    --        $ 15,560    $110,922    $   --        $126,482     $    --
 Network services
 and other........    20,395       21,964         (1,068)(b)     41,291      13,558       (395)(k)     54,454          --
                    --------      -------       --------       --------    --------    -------       --------     --------
  Total net
  revenues........    31,405       26,514         (1,068)        56,851     124,480       (395)       180,936          --
                    --------      -------       --------       --------    --------    -------       --------     --------
Operating
expenses:
 Costs of
 operations:
 Site rental and
 broadcast
 transmission.....     2,213        1,421            --           3,634      53,806        --          57,440          --
 Network services
 and other........    13,137       13,303         (1,134)(c)     25,306       5,990        --          31,296          --
 General and
 administrative...     6,824        4,430            --          11,254       9,124       (395)(k)     19,983          --
 Corporate
 development......     5,731           --         (2,224)(d)      3,507         --         --           3,507          --
 Depreciation and
 amortization.....     6,952        1,058          5,179 (e)     13,189      34,627     17,138 (l)     64,954          --
                    --------      -------       --------       --------    --------    -------       --------     --------
                      34,857       20,212          1,821         56,890     103,547     16,743        177,180          --
                    --------      -------       --------       --------    --------    -------       --------     --------
Operating income
(loss)............    (3,452)       6,302         (2,889)           (39)     20,933    (17,138)         3,756          --
Other income
(expense):
 Equity in losses
 of unconsolidated
 affiliate........    (1,138)          --           (136)(f)     (1,274)        --       1,274(m)         --           --
 Interest and
 other income
 (expense)........     1,951          (17)        (1,165)(g)        769         552        --           1,321          --
 Interest expense
 and amortization
 of deferred
 financing costs..    (9,254)        (943)        (7,638)(h)    (17,835)    (20,473)       --         (38,308)         --
                    --------      -------       --------       --------    --------    -------       --------     --------
Income (loss)
before income
taxes and minority
interests.........   (11,893)       5,342        (11,828)       (18,379)      1,012    (15,864)       (33,231)         --
Provision for
income taxes......       (49)          (1)           --             (50)        --         --             (50)         --
Minority
interests.........       --            --            --             --          --      (1,320)(n)     (1,320)         --
                    --------      -------       --------       --------    --------    -------       --------     --------
Net income
(loss)............   (11,942)       5,341        (11,828)       (18,429)      1,012    (17,184)       (34,601)         --
Dividends on
Preferred Stock...    (2,199)          --         (6,134)(i)     (8,333)        --       8,333 (o)        --       (24,011)(p)
                    --------      -------       --------       --------    --------    -------       --------     --------
Net income (loss)
after deduction of
dividends on
Preferred Stock...  $(14,141)     $ 5,341       $(17,962)      $(26,762)   $  1,012    $(8,851)      $(34,601)    $(24,011)
                    ========      =======       ========       ========    ========    =======       ========     ========

Loss per common
 share-basic and
 diluted..........  $  (2.27)                                                                        $  (0.37)     
                    ========                                                                         ========      

Common shares 
 outstanding-
 basic and diluted
 (in thousands)...     6,238                                                                           93,988      
                    ========                                                                         ========      






<CAPTION>
                                                          PRO
                                                         FORMA
                                                          FOR
                      PRO                               OFFERING
                     FORMA    HISTORICAL ADJUSTMENTS      AND
                      FOR      PROPOSED      FOR        PROPOSED
                    OFFERING    JV(Q)    PROPOSED JV       JV
                    --------- ---------- -------------- ---------
<S>                 <C>       <C>        <C>            <C>
Net revenues:
 Site rental and
 broadcast
 transmission.....  $126,482   $  6,480   $ 27,812 (r)  $160,774
 Network services
 and other........    54,454         --         --        54,454
                    --------- ---------- -------------- ---------
  Total net
  revenues........   180,936      6,480     27,812       215,228
                    --------- ---------- -------------- ---------
Operating
expenses:
 Costs of
 operations:
 Site rental and
 broadcast
 transmission.....    57,440     15,131         -- (s)    72,571
 Network services
 and other........    31,296         --         --        31,296
 General and
 administrative...    19,983         --         -- (s)    19,983
 Corporate
 development......     3,507         --         --         3,507
 Depreciation and
 amortization.....    64,954      7,221     22,405 (t)    94,580
                    --------- ---------- -------------- ---------
                     177,180     22,352     22,405       221,937
                    --------- ---------- -------------- ---------
Operating income
(loss)............     3,756    (15,872)     5,407        (6,709)
Other income
(expense):
 Equity in losses
 of unconsolidated
 affiliate........       --         --         --            --
 Interest and
 other income
 (expense)........     1,321        --         --          1,321
 Interest expense
 and amortization
 of deferred
 financing costs..   (38,308)       --     (17,711)(u)   (56,019)
                    --------- ---------- -------------- ---------
Income (loss)
before income
taxes and minority
interests.........   (33,231)   (15,872)   (12,304)      (61,407)
Provision for
income taxes......       (50)       --         --            (50)
Minority
interests.........    (1,320)       --       7,205 (v)     5,885
                    --------- ---------- -------------- ---------
Net income
(loss)............   (34,601)   (15,872)    (5,099)      (55,572)
Dividends on
Preferred Stock...   (24,011)       --         --        (24,011)
                    --------- ---------- -------------- ---------
Net income (loss)
after deduction of
dividends on
Preferred Stock...  $(58,612)  $(15,872)  $ (5,099)     $(79,583)
                    ========= ========== ============== =========

Loss per common
 share-basic and
 diluted..........  $  (0.62)                           $  (0.73)
                    =========                           =========

Common shares 
 outstanding-
 basic and diluted
 (in thousands)...    93,988                             109,563(x)   
                    ========                            ========      
</TABLE>
 
     See Notes to Unaudited Pro Forma Condensed Consolidated Statements of
                                  Operations
 
                                       8

<PAGE>
 
       UNAUDITED PRO FORMA CONDENSED CONSOLIDATED STATEMENT OF OPERATIONS
 
                      NINE MONTHS ENDED SEPTEMBER 30, 1998
                (DOLLARS IN THOUSANDS, EXCEPT PER SHARE AMOUNTS)
 
<TABLE>
<CAPTION>
                                                          PRO                                                        PRO FORMA
                                         ADJUSTMENTS     FORMA                     PRO                                  FOR
                         HISTORICAL          FOR          FOR     ADJUSTMENTS     FORMA    HISTORICAL ADJUSTMENTS   OFFERING AND
                      -----------------  ROLL-UP AND    ROLL-UP       FOR          FOR      PROPOSED      FOR         PROPOSED
                        CCIC    CTI(J)       IPO        AND IPO    OFFERING      OFFERING    JV(Q)    PROPOSED JV        JV
                      --------  -------  -----------    --------  -----------    --------  ---------- -----------   ------------
<S>                   <C>       <C>      <C>            <C>       <C>            <C>       <C>        <C>           <C>
Net revenues:
 Site rental and
  broadcast
  transmission......  $ 28,456  $84,714   $     --      $113,170   $     --      $113,170   $  8,302    $22,986 (r)   $144,458
 Network services
  and other.........    23,805   12,514       (265)(k)    36,054         --        36,054         --         --         36,054
                      --------  -------   --------      --------   --------      --------   --------    -------       --------
  Total net
   revenues.........    52,261   97,228       (265)      149,224         --       149,224      8,302     22,986        180,512
                      --------  -------   --------      --------   --------      --------   --------    -------       --------
Operating expenses:
 Costs of
  operations:
 Site rental and
  broadcast
  transmission......     8,398   35,901         --        44,299         --        44,299     12,285         -- (s)     56,584
 Network services
  and other.........    14,234    7,916         --        22,150         --        22,150         --         --         22,150
 General and
  administrative....    15,022    5,265       (265)(k)    20,022         --        20,022         --         -- (s)     20,022
 Corporate
  development.......     2,838        8         --         2,846         --         2,846         --         --          2,846
 Non-cash
  compensation
  charges...........    11,361    3,831         --        15,192         --        15,192         --         --         15,192
 Depreciation and
  amortization......    17,105   25,684     11,463 (l)    54,252         --        54,252      6,206     16,013 (t)     76,471
                      --------  -------   --------      --------   --------      --------   --------    -------       --------
                        68,958   78,605     11,198       158,761         --       158,761     18,491     16,013        193,265
                      --------  -------   --------      --------   --------      --------   --------    -------       --------
Operating income
 (loss).............   (16,697)  18,623    (11,463)       (9,537)        --        (9,537)   (10,189)     6,973        (12,753)
Other income
 (expense):
 Equity in earnings
  of unconsolidated
  affiliate.........     2,055       --     (2,055)(m)        --         --            --         --         --             --
 Interest and other
  income (expense)..     2,293      725         --         3,018         --         3,018         --         --          3,018
 Interest expense
  and amortization
  of deferred
  financing costs...   (17,581) (13,378)        --       (30,959)     2,587 (w)   (28,372)        --    (13,283)(u)    (41,655)
                      --------  -------   --------      --------   --------      --------   --------    -------       --------
Income (loss) before
 income taxes and
 minority
 interests..........   (29,930)   5,970    (13,518)      (37,478)     2,587       (34,891)   (10,189)    (6,310)       (51,390)
Provision for income
 taxes..............      (218)      --         --          (218)        --          (218)        --         --           (218)
Minority interests..      (328)      --     (1,194)(n)    (1,522)        --        (1,522)        --      3,659 (v)      2,137
                      --------  -------   --------      --------   --------      --------   --------    -------       --------
Net income (loss)...   (30,476)   5,970    (14,712)      (39,218)     2,587       (36,631)   (10,189)    (2,651)       (49,471)
Dividends on
 Preferred Stock....    (4,348)      --      4,348 (o)        --    (17,751)(p)   (17,751)        --         --        (17,751)
                      --------  -------   --------      --------   --------      --------   --------    -------       --------
Net income (loss)
 after deduction of
 dividends on
 Preferred Stock....  $(34,824) $ 5,970   $(10,364)     $(39,218)  $(15,164)     $(54,382)  $(10,189)   $(2,651)      $(67,222)
                      ========  =======   ========      ========   ========      ========   ========    =======       ========
Loss per common
 share - basic
 and diluted.......   $  (1.38)                         $  (0.42)                $  (0.58)                            $  (0.61)
                      ========                          ========                 ========                             ========
Common shares
 outstanding -
 basic and
 diluted
 (in thousands)....     25,262                            93,990                   93,990                             109,565(x)
                        ======                            ======                   ======                             ==========
</TABLE>
 
 
     See Notes to Unaudited Pro Forma Condensed Consolidated Statements of
                                   Operations
 
                                       9
<PAGE>
 
 NOTES TO UNAUDITED PRO FORMA CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS
                            (DOLLARS IN THOUSANDS)
 
(a) The historical results of operations for each of the entities acquired by
    CCIC in the Historical Acquisitions are included in CCIC's historical
    results of operations for the period from their respective dates of
    acquisition through the end of the period presented. The historical
    results of operations presented for each of the acquired entities are
    their pre-acquisition results of operations. Set forth below are the
    respective dates of each Historical Acquisition:
 
<TABLE>
<CAPTION>
     COMPANY                                                     DATE
     -------                                                     ----
     <S>                                                         <C>
     TEA........................................................ May 12, 1997
     TeleStructures............................................. May 12, 1997
     Crown...................................................... August 15, 1997
</TABLE>
 
(b) Reflects the following adjustments to net revenues:
 
<TABLE>
<CAPTION>
                                                                 YEAR ENDED
                                                              DECEMBER 31, 1997
                                                              -----------------
     <S>                                                      <C>
     Elimination of intercompany sales between TEA and
      TeleStructures.........................................      $(1,134)
     Addition of management fee payable to CCIC from CTI for
      the portion of the period preceding the CTI
      Investment(i)..........................................           66
                                                                   -------
        Total adjustments to net revenues....................      $(1,068)
                                                                   =======
</TABLE>
    --------
    (i) The CTI Investment was consummated on February 28, 1997. Management
        fees received by CCIC during the period subsequent to the CTI
        Investment are reflected in CCIC's historical results of
        operations.
 
(c) Reflects the elimination of intercompany transactions between TEA and
    TeleStructures.
 
(d) Reflects the elimination of (i) nonrecurring cash bonus awards of $913
    paid to certain executive officers in connection with the CTI Investment
    and (ii) a nonrecurring cash charge of $1,311 related to the purchase by
    CCIC of shares of Class B Common Stock from CCIC's former chief executive
    officer in connection with the CTI Investment.
 
(e) Reflects the incremental amortization of goodwill and other intangible
    assets and the incremental depreciation of property and equipment as a
    result of the Historical Acquisitions. Goodwill is being amortized over
    twenty years and other intangible assets (primarily existing contracts)
    are being amortized over ten years.
 
(f) Reflects equity accounting adjustments to include CCIC's percentage in
    CTI's losses for the preinvestment period.
 
(g) Reflects the elimination of a nonrecurring success fee received by CCIC in
    connection with the CTI Investment.
 
(h) Reflects (i) additional interest expense of $5,291 attributable to the
    seller notes issued in connection with the Crown Merger and the TEA
    Acquisition and borrowings under the Senior Credit Facility prior to
    October 31, 1997 at interest rates ranging from 8.0% to 11.0%, and (ii)
    net increase in interest expense of $4,267 as a result of the issuance of
    the Notes in connection with the 1997 Refinancing at an interest rate on
    the Notes of 10.625% per annum. The adjustment also includes the
    elimination of $1,920 of nonrecurring financing fees charged to interest
    expense in September and October of 1997. Such fees related to an unfunded
    interim loan facility related to the Crown Merger and an unfunded
    revolving credit facility.
 
(i) Reflects additional dividends attributable to the Senior Convertible
    Preferred Stock prior to the dates of issuance.
 
(j) Reflects the historical results of operations of CTI (under U.S. GAAP) for
    the periods prior to the consummation of the Roll-Up in August 1998. Such
    results have been translated from pounds sterling to U.S. dollars at the
    average Noon Buying Rate for the period.
 
(k) Reflects the elimination of management fees payable to CCIC from CTI.
 
(l) Reflects the incremental amortization of goodwill as a result of the Roll-
    Up. Goodwill is being amortized over twenty years.
 
(m) Reflects the elimination of equity accounting adjustments to include
    CCIC's percentage in CTI's earnings and losses.
 
(n) Reflects the minority interest in dividends accrued on CTI's Redeemable
    Preference Shares.
 
(o) Reflects decrease in dividends attributable to the conversion of the
    outstanding shares of Senior Convertible Preferred Stock into shares of
    Common Stock in the Senior Preferred Conversion.
 
(p) Reflects dividends attributable to the Exchangeable Preferred Stock issued
    in the Offering.
 
(q) Reflects the historical results of operations of the tower operations to
    be contributed to the Proposed JV.
 
(r) Reflects additional revenues to be recognized by the Proposed JV pursuant
    to the Global Lease and the Formation Agreement.
 
(s) CCIC expects that the Proposed JV will incur incremental operating
    expenses as a stand-alone entity. Such incremental expenses are currently
    estimated to amount to approximately $5.2 million per year.
 
(t) Reflects the incremental depreciation of property and equipment as a
    result of the Proposed JV.
 
(u) Reflects additional interest expense attributable to borrowings under a
    credit facility to be entered into by the Proposed JV. Such borrowings are
    initially estimated to incur interest at a rate of 9.25%.
 
(v) Reflects the minority partner's 37.7% interest in the Proposed JV's
    operations.
 
(w) Reflects decrease in interest expense attributable to the repayment of
    borrowings under the Senior Credit Facility from a portion of the net
    proceeds of the Offering.

(x) Includes 15,575,046 shares of the Company's common stock, which is expected 
    to be issued to the Proposed JV upon the formation of the Proposed JV.

                                      10 
<PAGE>

  The following tables summarize the unaudited pro forma results of operations
for the Restricted Group. Such information is not intended as an alternative
measure of operating results as determined in accordance with generally
accepted accounting principles.
 
<TABLE>
<CAPTION>
                                     YEAR ENDED DECEMBER 31, 1997              NINE MONTHS ENDED SEPTEMBER 30, 1998
                             --------------------------------------------- ---------------------------------------------
                                                                RESTRICTED                                    RESTRICTED
                               PRO                   EXCLUSION  GROUP PRO    PRO                   EXCLUSION  GROUP PRO
                              FORMA    EXCLUSION OF OF CERTAIN    FORMA     FORMA    EXCLUSION OF OF CERTAIN    FORMA
                               FOR     UNRESTRICTED ADJUSTMENTS    FOR       FOR     UNRESTRICTED ADJUSTMENTS    FOR
                             OFFERING   SUBSIDIARY  FOR ROLL-UP  OFFERING  OFFERING  SUBSIDIARIES FOR ROLL-UP  OFFERING
                             --------  ------------ ----------- ---------- --------  ------------ ----------- ----------
   <S>                       <C>       <C>          <C>         <C>        <C>       <C>          <C>         <C>
   Net revenues:
    Site rental and
     broadcast
     transmission.........   $126,482   $(110,992)    $    --    $ 15,560  $113,170    $(97,040)    $    --    $ 16,130
    Network services and
     other................     54,454     (13,558)         --      40,896    36,054     (14,456)         --      21,598
                             --------   ---------     -------    --------  --------    --------     -------    --------
      Total net revenues..    180,936    (124,480)         --      56,456   149,224    (111,496)         --      37,728
                             --------   ---------     -------    --------  --------    --------     -------    --------
   Operating expenses:
    Costs of operations:
      Site rental and
       broadcast
       transmission.......     57,440     (53,806)         --       3,634    44,299     (40,225)         --       4,074
      Network services and
       other..............     31,296      (5,990)         --      25,306    22,150      (9,847)         --      12,303
    General and
     administrative.......     19,983      (9,124)        395      11,254    20,022      (6,017)        265      14,270
    Corporate
     development..........      3,507          --          --       3,507     2,846          (8)         --       2,838
    Non-cash compensation
     charges..............         --          --          --          --    15,192      (5,808)         --       9,384
    Depreciation and
     amortization.........     64,954     (34,627)    (17,138)     13,189    54,252     (30,747)    (11,463)     12,042
                             --------   ---------     -------    --------  --------    --------     -------    --------
                              177,180    (103,547)    (16,743)     56,890   158,761     (92,652)    (11,198)     54,911
                             --------   ---------     -------    --------  --------    --------     -------    --------
   Operating income
    (loss)................      3,756     (20,933)     16,743        (434)   (9,537)    (18,844)     11,198     (17,183)
   Other income (expense):
    Interest and other
     income (expense).....      1,321        (552)         --         769     3,018      (1,632)         --       1,386
    Interest expense and
     amortization of
     deferred financing
     costs................    (38,308)     20,473          --     (17,835)  (28,372)     15,055          --     (13,317)
                             --------   ---------     -------    --------  --------    --------     -------    --------
   Income (loss) before
    income taxes and
    minority interests....    (33,231)     (1,012)     16,743     (17,500)  (34,891)     (5,421)     11,198     (29,114)
   Provision for income
    taxes.................        (50)         --          --         (50)     (218)         --          --        (218)
   Minority interests.....     (1,320)         --       1,320          --    (1,522)        328       1,194          --
                             --------   ---------     -------    --------  --------    --------     -------    --------
   Net income (loss)......    (34,601)     (1,012)     18,063     (17,550)  (36,631)     (5,093)     12,392     (29,332)
   Dividends on Preferred
    Stock.................    (24,011)         --          --     (24,011)  (17,751)         --          --     (17,751)
                             --------   ---------     -------    --------  --------    --------     -------    --------
   Net income (loss) after
    deduction of dividends
    on Preferred Stock....   $(58,612)  $  (1,012)    $18,063    $(41,561) $(54,382)   $ (5,093)    $12,392    $(47,083)
                             ========   =========     =======    ========  ========    ========     =======    ========
</TABLE>
 
                                      11
<PAGE>

            UNAUDITED PRO FORMA CONDENSED CONSOLIDATED BALANCE SHEET
 
                            AS OF SEPTEMBER 30, 1998
                             (DOLLARS IN THOUSANDS)
 
<TABLE>
<CAPTION>
                                                                                          PRO FORMA
                                     ADJUSTMENTS    PRO FORMA  HISTORICAL ADJUSTMENTS    FOR OFFERING
                          HISTORICAL     FOR           FOR      PROPOSED      FOR            AND
                             CCIC     OFFERING       OFFERING    JV(E)    PROPOSED JV    PROPOSED JV
                          ---------- -----------    ---------- ---------- -----------    ------------
<S>                       <C>        <C>            <C>        <C>        <C>            <C>
ASSETS:
Current assets:
  Cash and cash
   equivalents..........  $  201,349  $121,000(a)   $  322,349  $    --    $(208,375)(f)  $  113,974
  Receivables...........      34,499        --          34,499       --           --          34,499
  Inventories...........       5,209        --           5,209       --           --           5,209
  Prepaid expenses and
   other current
   assets...............       2,883        --           2,883       48           --           2,931
                          ----------  --------      ----------  -------    ---------      ----------
    Total current
     assets.............     243,940   121,000         364,940       48     (208,375)        156,613
Property and equipment,
 net....................     544,486        --         544,486   84,089      508,424(g)    1,136,999
Investments in
 affiliates.............       2,221        --           2,221       --           --           2,221
Goodwill and other
 intangible assets,
 net....................     563,706        --         563,706       --           --         563,706
Deferred financing costs
 and other assets, net..      15,586        --          15,586       --        4,625(h)       20,211
                          ----------  --------      ----------  -------    ---------      ----------
                          $1,369,939  $121,000      $1,490,939  $84,137    $ 304,674      $1,879,750
                          ==========  ========      ==========  =======    =========      ==========
LIABILITIES AND
 STOCKHOLDERS' EQUITY:
Current liabilities:
  Accounts payable......  $   30,271  $     --      $   30,271  $    --    $      --      $   30,271
  Other current
   liabilities..........      47,078        --          47,078       --           --          47,078
  Long-term debt,
   current maturities...          --        --              --       --           --              --
                          ----------  --------      ----------  -------    ---------      ----------
    Total current
     liabilities........      77,349        --          77,349       --           --          77,349
Long-term debt, less
 current maturities.....     494,324  (69,000)(b)      425,324       --      180,000(i)      605,324
Other liabilities.......       4,620        --           4,620       --           --           4,620
                          ----------  --------      ----------  -------    ---------      ----------
    Total liabilities...     576,293   (69,000)        507,293       --      180,000         687,293
                          ----------  --------      ----------  -------    ---------      ----------
Minority interests......      38,529        --          38,529       --       11,811(j)       50,340
Redeemable preferred
 stock..................         --    200,000 (c)     200,000      --           --          200,000
Stockholders' equity....     755,117   (10,000)(d)     745,117   84,137      112,863(k)      942,117
                          ----------  --------      ----------  -------    ---------      ----------
                          $1,369,939  $121,000      $1,490,939  $84,137    $ 304,674      $1,879,750
                          ==========  ========      ==========  =======    =========      ==========
</TABLE>
 
     See Notes to Unaudited Pro Forma Condensed Consolidated Balance Sheet
 
                                      12
<PAGE>
 
       NOTES TO UNAUDITED PRO FORMA CONDENSED CONSOLIDATED BALANCE SHEET
                            (DOLLARS IN THOUSANDS)
 
 
(a) Reflects the following adjustments to cash and cash equivalents:
 
<TABLE>
     <S>                                                            <C>
     (1)  Increase resulting from the receipt of proceeds from the
           Offering.................................................. $ 200,000
     (2)  Decrease resulting from the payment of underwriting
           discounts and commissions and other fees and expenses
           related to the Offering...................................   (10,000)
     (3)  Decrease resulting from the repayment of borrowings under
           the Senior Credit Facility from a portion of the net
           proceeds of the Offering..................................   (69,000)
                                                                      ---------
          Total adjustments to cash and cash equivalents............. $ 121,000
                                                                      =========
 
(b) Reflects the repayment of borrowings under the Senior Credit Facility from
    a portion of the net proceeds of the Offering.
 
(c) Reflects the increase resulting from the receipt of proceeds from the
    Offering.
 
(d) Reflects the decrease resulting from the payment of underwriting discounts
    and commissions and other fees and expenses related to the Offering
 
(e) Reflects the historical amounts from the statement of net assets for the
    tower operations to be contributed to the Proposed JV.
 
(f) Reflects the following adjustments to cash and cash equivalents:
 
     (1)  Increase resulting from borrowings under a credit facility
           to be entered into by the
           Proposed JV............................................... $ 180,000
     (2)  Decrease resulting from distribution to minority partner...  (380,000)
     (3)  Decrease resulting from payment of defined financing costs
           for credit facility to be entered into by the Proposed
           JV........................................................    (4,625)
     (4)  Decrease resulting from payment of fees and expenses
           related to the Proposed JV................................... (3,750)
                                                                    ---------
        Total adjustments to cash and cash equivalents............. $(208,375)
                                                                    =========
 
(g) Reflects the increase in basis of property and equipment contributed to
    the Proposed JV by the minority partner.
 
(h) Reflects the deferred financing costs for the credit facility to be
    entered into by the Proposed JV.
 
(i) Reflects the borrowings under a credit facility to be entered into by the
    Proposed JV.
 
(j) Reflects the 37.7% minority interest in the Proposed JV.
 
(k) Reflects the following adjustments to stockholders' equity:
 
     (1)  Increase resulting from increase in basis of property and
           equipment contributed to the Proposed JV by the minority
           partner................................................... $ 508,424
     (2)  Decrease resulting from distribution to minority partner...  (380,000)
     (3)  Decrease resulting from minority interest..................   (11,811)
     (4)  Decrease resulting from payment of fees and expenses
           related to the Proposed JV................................... (3,750)
                                                                      ---------
          Total adjustments to stockholders' equity.................. $ 112,863
                                                                      =========
</TABLE>
 
                                      13
<PAGE>

  The following table summarizes the adjustments for the Offering, with
increases to liabilities and stockholders' equity balances shown as negative
amounts:
<TABLE>
<CAPTION>
                                          ADJUSTMENT REFERENCE
                                    --------------------------------
                                    (A)(1),(A)(2),(C),(D) (A)(3),(B)  TOTALS
                                    --------------------- ---------- ---------
       <S>                          <C>                   <C>        <C>
       Cash and cash equivalents..        $ 190,000        $(69,000) $ 121,000
       Long-term debt, less cur-
        rent maturities...........               --          69,000     69,000
       Redeemable preferred
        stock.....................         (200,000)             --   (200,000)
       Stockholders' equity.......           10,000              --     10,000
                                          ---------        --------  ---------
                                          $      --        $     --  $      --
                                          =========        ========  =========
</TABLE>
 
  The following table summarizes the adjustments for the Proposed JV, with
increases to liabilities and stockholders' equity balances shown as negative
amounts:
 
<TABLE>
<CAPTION>
                                                ADJUSTMENT REFERENCE
                          ----------------------------------------------------------------
                                                                            (G)(J),(K)(1),
                          (F)(1),(I) (F)(2),(K)(2) (F)(3),(H) (F)(4),(K)(4)     (K)(3)      TOTALS
                          ---------- ------------- ---------- ------------- -------------- ---------
<S>                       <C>        <C>           <C>        <C>           <C>            <C>
Cash and cash
 equivalents............   $180,000    $(380,000)   $(4,625)     $(3,750)     $      --    $(208,375)
Property and equipment,
 net....................         --           --         --           --        508,424      508,424
Deferred financing costs
 and other assets, net..         --           --      4,625           --             --        4,625
Long-term debt, less
 current maturities.....   (180,000)          --         --           --             --     (180,000)
Minority interests......         --           --         --           --        (11,811)     (11,811)
Stockholders' equity....         --      380,000         --        3,750       (496,613)    (112,863)
                           --------    ---------    -------      -------      ---------    ---------
                           $     --    $      --    $    --      $    --      $      --    $      --
                           ========    =========    =======      =======      =========    =========
</TABLE>

                                      14
<PAGE>
 
  The following table summarizes the unaudited pro forma balance sheet for the
Restricted Group. Such information is not intended as an alternative measure
of financial position as determined in accordance with generally accepted
accounting principles.
 
<TABLE>
<CAPTION>
                                           AS OF SEPTEMBER 30, 1998
                          -----------------------------------------------------------
                                                                          RESTRICTED
                                                                          GROUP PRO
                                                  RESTRICTED                FORMA
                          PRO FORMA  EXCLUSION OF GROUP PRO  ADJUSTMENTS FOR OFFERING
                             FOR     UNRESTRICTED FORMA FOR      FOR         AND
                           OFFERING  SUBSIDIARIES  OFFERING  PROPOSED JV PROPOSED JV
                          ---------- ------------ ---------- ----------- ------------
<S>                       <C>        <C>          <C>        <C>         <C>
ASSETS:
Current assets:
  Cash and cash
   equivalents..........  $  322,349  $(272,414)  $   49,935  $     --    $   49,935
  Receivables...........      34,499    (21,357)      13,142        --        13,142
  Inventories...........       5,209     (3,854)       1,355        --         1,355
  Prepaid expenses and
   other current
   assets...............       2,883     (1,329)       1,554        --         1,554
                          ----------  ---------   ----------  --------    ----------
    Total current
     assets.............     364,940   (298,954)      65,986        --        65,986
Property and equipment,
 net....................     544,486   (402,275)     142,211        --       142,211
Investments in
 affiliates.............       2,221         --        2,221        --         2,221
Investments in
 Unrestricted
 Subsidiaries...........          --    750,875      750,875   197,000       947,875
Goodwill and other
 intangible assets,
 net....................     563,706   (417,591)     146,115        --       146,115
Deferred financing costs
 and other assets, net..      15,586     (2,207)      13,379        --        13,379
                          ----------  ---------   ----------  --------    ----------
                          $1,490,939  $(370,152)  $1,120,787  $197,000    $1,317,787
                          ==========  =========   ==========  ========    ==========
LIABILITIES AND
 STOCKHOLDERS' EQUITY:
Current liabilities.....
  Accounts payable......  $   30,271  $ (23,696)  $    6,575  $     --    $    6,575
  Other current
   liabilities..........      47,078    (42,470)       4,608        --         4,608
  Long-term debt,
   current maturities...          --         --           --        --            --
                          ----------  ---------   ----------  --------    ----------
    Total current
     liabilities........      77,349    (66,166)      11,183        --        11,183
Long-term debt, less
 current maturities.....     425,324   (261,521)     163,803        --       163,803
Other liabilities.......       4,620     (3,936)         684        --           684
                          ----------  ---------   ----------  --------    ----------
    Total liabilities...     507,293   (331,623)     175,670        --       175,670
                          ----------  ---------   ----------  --------    ----------
Minority interests......      38,529    (38,529)          --        --            --
Redeemable preferred
 stock..................     200,000         --      200,000        --       200,000
Stockholders' equity....     745,117         --      745,117   197,000       942,117
                          ----------  ---------   ----------  --------    ----------
                          $1,490,939  $(370,152)  $1,120,787  $197,000    $1,317,787
                          ==========  =========   ==========  ========    ==========
</TABLE>
 
                                      15
<PAGE>
 
ITEM 7. FINANCIAL STATEMENTS AND EXHIBITS

          (c) Exhibits
 
          Exhibit No.                   Description
          -----------                   -----------

             99.1                       Press Release issued by CCIC dated
                                        December 9, 1998

             99.2                       Press Release issued by CCIC and
                                        Bell Atlantic Mobile dated 
                                        December 9, 1998

             99.3                       Formation Agreement dated as of
                                        December 8, 1998, by and among Cellco
                                        Partnership, a Delaware general
                                        partnership doing business as Bell
                                        Atlantic Mobile, the Transferring
                                        Partnerships (as defined therein), Crown
                                        Castle International Corp. and CCA
                                        Investment Corp. (excluding most
                                        exhibits)

                                      16
<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 authorize.


                                 CROWN CASTLE INTERNATIONAL CORP.,



                             By:  /s/  Wesley D. Cunningham   
                                  ------------------------------------
                                  Vice President, Corporate Controller
                                  and Chief Accounting Officer

December 9, 1998

                                      17
<PAGE>
 
                                 EXHIBIT INDEX

Exhibit No.  Description of Exhibit
- -----------  -----------------------
 
99.1         Press Release issued by CCIC on December 9, 1998
 
99.2         Press Release issued by CCIC and Bell Atlantic Mobile dated
             December 9, 1998
 
99.3         Formation Agreement dated as of December 8, 1998, by and
             among Cellco Partnership, a Delaware general partnership doing 
             business as Bell Atlantic Mobile, the Transferring Partnerships (as
             defined therein), Crown Castle International Corp. and CCA
             Investment Corp. (excluding most exhibits)
 
 
 

<PAGE>
 
FOR RELEASE AT 6:00 P.M. EST                                     EXHIBIT 99.1

                                     Client:   Crown Castle International Corp.
                                                                               
                                     Contacts: Charles C. Green, III, CFO      
                                               Crown Castle International      
                                               713-570-3000                    
                                                                               
                                               Ken Dennard, Easterly I.R.      
                                               [email protected]           
                                               713-529-6600                     


          December 9, 1998 -- Houston, Texas -- Crown Castle International Corp.
("CCIC") (NASDAQ:  TWRS), announced today that it is offering in a Rule
144A/Regulation S distribution $200 million of its senior exchangeable pay-in-
kind preferred stock.  CCIC has the option to exchange the exchangeable
preferred stock for its senior subordinated pay-in-kind exchange debentures.
The offering is expected to close later this month. The net proceeds of the
offering are anticipated to be used for the proposed joint venture with Bell
Atlantic Mobile, to repay outstanding bank borrowings and for general corporate
purposes.

          The exchangeable preferred stock has not been registered under the
Securities Act of 1933 or any state securities laws and, unless so registered,
may not be offered or sold except pursuant to an exemption from, or in a
transaction not subject to, the registration requirements of the Securities Act
of 1933 and applicable state securities laws.

<PAGE>
 
                                                                    Exhibit 99.2


[LOGO] Bell Atlantic Mobile

       http://www.bam.com                               [LOGO] CROWN
                                                                CASTLE
                                                            INTERNATIONAL


                                    NEWS RELEASE

FOR IMMEDIATE RELEASE                   Contacts:

                                        For: Bell Atlantic Mobile
                                        Maggie Aloia Rohr
                                        908-306-7757 / [email protected]

                                        For: Crown Castle International Corp.
                                        Ken Dennard, Easterly Investor Relations
                                        713-529-6600 / [email protected]

              BELL ATLANTIC MOBILE AND CROWN CASTLE INTERNATIONAL
               TEAM TO EXPAND AND MANAGE CARRIER'S TOWER NETWORK

        Companies to Form Joint Venture to Grow Wireless Tower Business

BEDMINSTER, NJ & HOUSTON, TX - Bell Atlantic (NYSE:BEL) Mobile and Crown Castle
International Corp. (NASDAQ:TWRS) today announced an agreement to form a joint
venture company which will be majority owned and operated by Crown Castle
International ("CCIC"). The new company will own, operate, and actively advance
the leasing of space on Bell Atlantic Mobile's existing extensive network of
high-quality wireless towers throughout the country. In addition, the joint
venture company will help Bell Atlantic Mobile respond to the soaring popularity
of its DigitalChoice SingleRate(sm) service by building hundreds of new towers
for the carrier. Bell Atlantic Mobile will lease back space on the towers under
a global lease agreement.

       The transaction, in which Bell Atlantic Mobile is expected to contribute
in excess of 1,400 existing towers, is valued at approximately $650 million. In
addition, the joint venture intends to raise $180 million of debt, the proceeds
of which will be distributed to Bell Atlantic Mobile. CCIC will own 62.3% and
Bell Atlantic Mobile will own 37.7% of the new company. In addition, the
agreement between CCIC and Bell Atlantic Mobile provides CCIC with the
opportunity to significantly increase its stake after the fourth anniversary of
the formation of the joint venture.

       The new company will also be responsible for procuring available land
through lease or purchase, pursuing and obtaining all regulatory approvals, and
performing all related site design and construction activities. Bell Atlantic
Mobile will retain control and ownership of all shelters, cell site equipment,
facilities, and switching infrastructure.
<PAGE>
 
       "The formation of this joint venture will enable Bell Atlantic Mobile to
more efficiently employ capital on our core wireless operations and should also
enhance our ability to rapidly expand our geographic coverage to our subscriber
base," said Dave Benson, vice president and CFO for Bell Atlantic Mobile. "We
have made a considerable investment to build the best engineered and highest
quality wireless network and this transaction allows us to maximize the value of
our extensive portfolio of towers. After evaluating a number of competitive
proposals from different operators, we selected Crown Castle because we believe 
Crown Castle is the right partner to maintain our high network quality and to 
expand the tower portfolio based on their significant operational expertise and
broad industry knowledge."

        "We are proud to have been selected as the partner of choice for the 
first major tower transaction in the US involving one of the most attractive 
footprints available," stated Ted B. Miller, Jr., Crown Castle International 
CEO. "We believe this transaction establishes Crown Castle as one of the premier
independent tower operators in the U.S. as well as world-wide. Our analysis 
suggests that Bell Atlantic Mobile's significant tower clusters are extremely 
well positioned for meaningful build-out and lease-up, offering significant 
earnings growth potential and upside value to our shareholders as additional 
operators are attracted to current and future sites. The explosive growth of 
wireless communications is shifting tower economics towards this type of 
infrastructure partnership in order for carriers to cost-effectively meet the 
demands of their customers."

        The agreements relating to the formation and operation of the joint 
venture company will be included as exhibits to a Form 8-K to be filed soon by 
CCIC with the Securities and Exchange Commission.

        Bell Atlantic Mobile owns and operates the largest wireless network in 
the East, covering 116,000 square miles, and the largest chain of retail outlets
devoted exclusively to wireless voice, data and paging. Based in Bedminster, NJ,
Bell Atlantic Mobile has 5.9 million customers and 7,500 employees from Maine to
Georgia and, through a separate subsidiary, in the Southwest. Through its
"Wireless at Work..." community service program, the company uses its technology
to help individuals and communities improve security and emergency
communications. Bell Atlantic Mobile's parent is one of the world's largest
wireless communications companies, with domestic operations in 25 states and
international investments in Mexico, Europe and the Pacific Rim. For more
information on Bell Atlantic Mobile visit: www.bam.com; on global operations
                                           -----------
visit: www.bellatlantic.com/worldwide.
       ------------------------------

        Crown Castle International Corp. is a leading provider of communication 
sites and wireless network services and provides an array of related 
infrastructure and network support services to the wireless communications and 
radio and television broadcasting industries in the United States and United 
Kingdom. After the Bell Atlantic Mobile transaction is completed, Crown Castle 
International will own, operate and manage over 2,900 communications sites. For 
more information visit: www.crowncastle.com.
                        -------------------

        This press release contains various forward-looking statements and 
information that are based on management's belief as well as assumptions made by
and information currently available to management. Although management believes 
that the expectations reflected in such forward-looking statements are 
reasonable, it can give no assurance that such expectations will prove to have 
been correct. Such statements are subject to certain risks, uncertainties and 
assumptions. Should one or more of these risks materialize, or should underlying
assumptions prove incorrect, actual results may vary materially from those 
expected.

                                      ###

<PAGE>
 
                                                                    EXHIBIT 99.3

================================================================================



                              FORMATION AGREEMENT

                          relating to the formation of

                          CROWN ATLANTIC COMPANY LLC,

                      CROWN ATLANTIC HOLDING SUB LLC, and

                       CROWN ATLANTIC HOLDING COMPANY LLC



                           Dated:  December 8, 1998



================================================================================
<PAGE>
 

                                   STEEL CO.
 
                              FORMATION AGREEMENT

                               Table of Contents


<TABLE> 
<CAPTION> 
                                                                                                   Page
<S>                                                                                                <C> 
ARTICLE 1 - CERTAIN DEFINITIONS.....................................................................-2-

ARTICLE 2 - FORMATION OF OPCO......................................................................-11-
         2.1      Purpose of OpCo..................................................................-11-
         2.2      Formation of OpCo................................................................-11-
         2.3      Contribution of BAM Contributed Assets and BAM Assumed Liabilities...............-12-
                  2.3.1    Transfer of BAM Contributed Assets......................................-12-
                  2.3.2    Excluded Assets.........................................................-12-
                  2.3.3    Assumption of BAM Assumed Liabilities...................................-13-
                  2.3.4    Limitations on Assumption of Liabilities................................-14-
                  2.3.5    Assignment or Subcontracting of Purchased Contracts.....................-14-
                  2.3.6    Consent of Third Parties................................................-15-
                  2.3.7    Bulk Transfer Laws......................................................-15-
                  2.3.8    Certain Apportionments..................................................-15-
         2.4      Contribution of Bidder Contributed Cash..........................................-16-
         2.5      Global Lease Agreement...........................................................-16-
         2.6      Build-to-Suit Agreement..........................................................-16-
         2.7      Bidder Services Agreement........................................................-16-
         2.8      Transitional Services Agreement..................................................-17-

ARTICLE 3 - FORMATION OF HOLDCO SUB AND HOLDCO, ANTICIPATED FINANCING..............................-17-
         3.1      Purpose of HoldCo and HoldCo Sub.................................................-17-
         3.2      Formation of HoldCo Sub..........................................................-17-
         3.3      Management Agreement.............................................................-17-
         3.4      Contributed Cash Distribution....................................................-17-
         3.5      Formation of HoldCo..............................................................-18-
         3.6      Financing........................................................................-19-
         3.7      BAM-Sub Guarantee................................................................-19-
         3.8      Adjustments Based Upon Number of Included Tower Structures.......................-19-
         3.9      Adjustments Based Upon Revenue Run Rate of Included Towers.......................-21-
         3.10     Adjustment Based Upon Revenues Receivable under Certain Third Party Leases.......-22-

ARTICLE 4 - CLOSING................................................................................-22-
         4.1      Closing..........................................................................-22-
         4.2      Items to be Delivered and Actions to be Taken at Closing.........................-22-
         4.3      Further Assurances...............................................................-24-

ARTICLE 5 - REPRESENTATIONS AND WARRANTIES.........................................................-25-
         5.1      Representations and Warranties of BAM............................................-25-
                  5.1.1    Corporate...............................................................-25-
                  5.1.2    Authorization...........................................................-25-
                  5.1.3    Consents and Approvals..................................................-25-
</TABLE> 

                                      -i-


<PAGE>
 
<TABLE> 
<S>                                                                                               <C> 
                  5.1.4    Title to and Condition of Assets and Related Matters....................-26-
                  5.1.5    Real Property...........................................................-26-
                  5.1.6    Legal Proceedings and Compliance with Law...............................-27-
                  5.1.7    Governmental Permits....................................................-27-
                  5.1.8    Contracts...............................................................-27-
                  5.1.9    Employees and Employee Relations........................................-28-
                  5.1.10   Employee Benefit Plans..................................................-28-
                  5.1.11   Environmental Matters...................................................-29-
                  5.1.12   Absence of Certain Changes or  Events...................................-29-
                  5.1.13   Availability of Documents...............................................-29-
                  5.1.14   Purchase for Investment.................................................-29-
                  5.1.15   Broker or Finder........................................................-30-
                  5.1.16   No Other Warranties.....................................................-30-
         5.2      Representations and Warranties of Transferring Partnerships......................-30-
                  5.2.1    Partnership.............................................................-30-
                  5.2.2    Authorization...........................................................-30-
                  5.2.3    Consents and Approvals..................................................-30-
         5.3      Representations and Warranties of Bidder and Bidder Member.......................-31-
                  5.3.1    Corporate...............................................................-31-
                  5.3.2    Authorization...........................................................-31-
                  5.3.3    Consents and Approvals..................................................-31-
                  5.3.4    Broker or Finder........................................................-31-
                  5.3.5    Capital Stock...........................................................-31-
                  5.3.6    SEC Reports.............................................................-32-
                  5.3.7    Absence of Certain Changes..............................................-32-
                  5.3.8    Bidder Articles and Bylaws..............................................-32-
                  5.3.9    Threatened or Pending Litigation........................................-33-
                  5.3.10   No Impact of Bidder Agreements on OpCo, HoldCo or HoldCo Sub............-33-
                  5.3.11   Bidder Contributed Shares...............................................-33-
                  5.3.12   Share Ownership Limitations.............................................-33-
                  5.3.13   Bidder Financing........................................................-33-
                  5.3.14   Funds Available for Bidder Contribution.................................-34-
                  5.3.15   Purchase for Investment.................................................-34-
                  5.3.16   No Other Representations or Warranties..................................-34-

ARTICLE 6 -    AGREEMENTS PENDING CLOSING..........................................................-34-
         6.1      Agreements of BAM Pending the Closing............................................-34-
                  6.1.1    Business in the Ordinary Course.........................................-34-
                  6.1.2    Update Schedules........................................................-34-
                  6.1.3    Conduct of Business.....................................................-35-
                  6.1.4    Sale of Assets; Negotiations............................................-35-
                  6.1.5    Access..................................................................-35-
                  6.1.6    Press Releases..........................................................-35-
                  6.1.7    Required BAM Phase I Environmental Reports..............................-36-
         6.2      Agreements of Bidder and Bidder Member Pending the Closing.......................-37-
                  6.2.1    Update Schedules........................................................-37-
                  6.2.2    Conduct of Business.....................................................-37-
                  6.2.3    Access..................................................................-37-
                  6.2.4    Press Releases..........................................................-37-
                  6.2.5    Optional Bidder Phase I Environmental Reports...........................-38-
</TABLE> 

                                     -ii-

<PAGE>
 
<TABLE> 
<S>                                                                                                <C> 
                  6.2.6    No Modification of Commitment Letter or Forms of Financing Documents....-38-
                  6.2.7    Rights Agreement Amendment..............................................-38-
         6.3       Agreements of BAM and Bidder Pending Closing....................................-38-
                  6.3.1    Approvals and Consents and Regulatory Filings...........................-38-
                  6.3.2    Identified Employees....................................................-39-

ARTICLE 7 - CONDITIONS PRECEDENT TO THE CLOSING....................................................-39-
         7.1      Conditions Precedent to BAM's Obligations........................................-39-
                  7.1.1    Representations and Warranties True as of the Closing Date..............-39-
                  7.1.2    Compliance with this Agreement..........................................-40-
                  7.1.3    Closing Certificate.....................................................-40-
                  7.1.4    Financing...............................................................-40-
                  7.1.5    No Threatened or Pending Litigation.....................................-40-
                  7.1.6    Consents and Approvals..................................................-40-
                  7.1.7    Optional Bidder Phase I Reports.........................................-40-
                  7.1.8    Fundamental Transactions................................................-40-
                  7.1.9    Bidder Services Agreement...............................................-40-
                  7.1.10   Management Agreement....................................................-41-
                  7.1.11   Transitional Services Agreement.........................................-41-
                  7.1.12   Rights Agreement Amendment..............................................-41-
         7.2      Conditions Precedent to the Obligations of Bidder................................-41-
                  7.2.1    Representations and Warranties True as of the Closing Date..............-41-
                  7.2.2    Compliance with this Agreement..........................................-41-
                  7.2.3    Closing Certificate.....................................................-41-
                  7.2.4    Financing...............................................................-41-
                  7.2.5    No Threatened or Pending Litigation.....................................-41-
                  7.2.6    Consents and Approvals..................................................-42-
                  7.2.7    Required BAM Phase I Reports............................................-42-
                  7.2.8    Bidder Services Agreement...............................................-42-
                  7.2.9    Management Agreement....................................................-42-
                  7.2.10   Transitional Services Agreement.........................................-42-

ARTICLE 8 - CERTAIN POST-CLOSING COVENANTS OF THE PARTIES..........................................-42-
         8.1      Post-Closing Covenants Related to OpCo...........................................-42-
                  8.1.1    Conduct of Business.....................................................-42-
                  8.1.2    Solvency................................................................-43-
                  8.1.3    Bankruptcy..............................................................-43-
                  8.1.4    Indebtedness............................................................-43-
                  8.1.5    Liens...................................................................-43-
                  8.1.6    Issuance of Interests...................................................-43-
                  8.1.7    Contingent Obligations..................................................-43-
                  8.1.8    Preservation of Existence...............................................-44-
                  8.1.9    Merger or Sale of Assets................................................-44-
                  8.1.10   Dealings with Affiliates................................................-44-
                  8.1.11   Dividends; Distributions................................................-44-
         8.2      Post-Closing Covenants Related to HoldCo, HoldCo Sub and OpCo....................-45-
                  8.2.1    Conduct of Business.....................................................-45-
                  8.2.2    Use of Proceeds.........................................................-45-
                  8.2.3    Solvency................................................................-45-
                  8.2.4    Bankruptcy..............................................................-45-
</TABLE> 

                                     -iii-


<PAGE>
 
<TABLE> 
<S>                                                                                                <C> 
                  8.2.5    Indebtedness............................................................-45-
                  8.2.6    Liens...................................................................-45-
                  8.2.7    Contingent Obligations..................................................-46-
                  8.2.8    Issuance of Interests...................................................-46-
                  8.2.9    Preservation of Existence...............................................-46-
                  8.2.10   Merger or Sale of Assets................................................-46-
                  8.2.11   Dealings with Affiliates................................................-46-
                  8.2.12   Business Plan and Annual Budget.........................................-46-
                  8.2.13   Certain Contracts.......................................................-48-
                  8.2.14   Action as Members of HoldCo Sub.........................................-48-
                  8.2.15   Voting of Bidder Contributed Shares.....................................-48-
         8.3      Delivery of Financial Statements.................................................-48-
         8.4      HoldCo, HoldCo Sub and OpCo Boards of Representatives............................-49-
         8.5      Covenants Are For Benefit of Members.............................................-49-
         8.6      Agreement Regarding Identified Employees.........................................-49-

ARTICLE 9 - CERTAIN ANCILLARY ARRANGEMENTS OF THE PARTIES..........................................-49-
         9.1      Restriction on Sales by Bidder...................................................-49-
         9.2      Restriction on Sales by BAM......................................................-50-
         9.3      BAM Right of First Refusal.......................................................-50-
         9.4      Bidder Member's Right of First Refusal...........................................-51-
         9.5      Right of Participation in Sales..................................................-52-
         9.6      Transfer of BAM Retained Interest................................................-53-
         9.7      Nomination of Director...........................................................-53-
         9.8      Registration Rights..............................................................-53-
         9.9      Specific Performance.............................................................-53-

ARTICLE  10 - INDEMNIFICATION......................................................................-54-
         10.1     Indemnification by BAM...........................................................-54-
         10.2     Indemnification by Bidder........................................................-54-
         10.3     Indemnification by OpCo..........................................................-55-
         10.4     Indemnification by Bidder Member.................................................-55-
         10.5     Procedure for Claims.............................................................-55-
         10.6     Certain Limitations..............................................................-56-
         10.7     Non-Third Party Claims...........................................................-57-
         10.8     Claims Period....................................................................-57-
         10.9     Third Party Claims...............................................................-57-
         10.10    Effect of Investigation or Knowledge.............................................-57-
         10.11    Losses Net of Insurance, Etc.....................................................-58-
         10.12    Sole Remedies....................................................................-58-

ARTICLE 11 - MISCELLANEOUS.........................................................................-58-
         11.1     Dispute Resolution...............................................................-58-
                  11.1.1   Submission to Arbitration...............................................-58-
                  11.1.2    Authority of Arbitrators...............................................-59-
                  11.1.3    Confidentiality........................................................-59-
                  11.1.4    Cost of Arbitration....................................................-59-
         11.2     Bidder's Reasonable Best Efforts Regarding Bidder Member's Performance...........-59-
         11.3     Survival of Representations and Warranties.......................................-59-
         11.4     Transfer Taxes...................................................................-59-
</TABLE> 

                                     -iv-

<PAGE>
 
<TABLE> 
<S>                                                                                                <C> 
         11.5     Termination......................................................................-59-
         11.6     Expenses.........................................................................-60-
         11.7     Contents of Agreement; Parties in Interest; etc..................................-60-
         11.8     Assignment and Binding Effect....................................................-61-
         11.9     Notices..........................................................................-61-
         11.10    Tax Reporting....................................................................-62-
         11.11    Delaware Law to Govern...........................................................-63-
         11.12    No Benefit to Others.............................................................-63-
         11.13    Table of Contents; Headings......................................................-63-
         11.14    Schedules and Exhibits...........................................................-63-
         11.15    Severability.....................................................................-63-
         11.16    Counterparts.....................................................................-63-
         11.17    Force Majeure....................................................................-63-
         11.18    Directly or Indirectly...........................................................-63-
         11.19    Interpretation...................................................................-63-
</TABLE> 

                                       v



<PAGE>
 
                           CROWN ATLANTIC COMPANY LLC
                         CROWN ATLANTIC HOLDING SUB LLC
                       CROWN ATLANTIC HOLDING COMPANY LLC

                              FORMATION AGREEMENT


EXHIBITS:

Exhibit A - Transferring Partnerships
Exhibit AA - Example Calculations Under Section 3.8(c)
Exhibit A-1 - Apportionments of BAM and Transferring Partnerships
Exhibit B - Form of Joinder
Exhibit 2.2 - OpCo Operating Agreement
Exhibit 2.5 - Global Lease
Exhibit 2.6 - Build-to-Suit Agreement
Exhibit 2.7 - Letter Agreement Regarding Service Agreements
Exhibit 3.2 - HoldCo Sub Operating Agreement
Exhibit 3.5 - HoldCo Operating Agreement
Exhibit 3.6 - Commitment Letter
Exhibit 3.7 - BAM-Sub Guarantee
Exhibit 8.2.12 - Business Plan and Annual Budget
Exhibit 9.8 - Registration Rights


ANNEXES

Annex I - Owned Sites and Leased Sites
Annex II - Site Leases
Annex III  - Tower Leases

                                       vi
<PAGE>
 
                               LIST OF SCHEDULES

Schedule 2.3.2(b)...................................... -12-
Schedule 3.10.......................................... -22-
Schedule 5.1.3......................................... -25-
Schedule 5.1.4......................................... -26-
Schedule 5.1.6......................................... -27-
Schedule 5.1.7......................................... -27-
Schedule 5.1.8......................................... -27-
Schedule 5.1.9......................................... -28-
Schedule 5.1.10........................................ -28-
Schedule 5.1.11........................................ -29-
Schedule 5.1.12........................................ -29-
Schedule 5.2.3......................................... -30-
Schedule 5.3.3......................................... -31-
Schedule 5.3.5......................................... -32-
Schedule 5.3.7......................................... -32-
Schedule 6.1.7......................................... -36-
Schedule 7.1.6......................................... -40-

                                      vii
<PAGE>
 
                           CROWN ATLANTIC COMPANY LLC
                         CROWN ATLANTIC HOLDING SUB LLC
                       CROWN ATLANTIC HOLDING COMPANY LLC


                              FORMATION AGREEMENT


     FORMATION AGREEMENT (the "Agreement") dated as of December 8, 1998, by and
                               ---------                                        
among Cellco Partnership, a Delaware general partnership doing business as Bell
Atlantic Mobile ("BAM"), the Transferring Partnerships (defined below), Crown
                  ---                                                        
Castle International Corp., a Delaware corporation ("Bidder"), and CCA
                                                     ------           
Investment Corp., a Delaware corporation ("Bidder Member").
                                           -------------   

                                    PREAMBLE

          BAM and the Transferring Partnerships are the owners of certain tower
     structures, interests in real property related thereto, and related assets,
     property rights, liabilities and obligations (hereinafter defined as BAM
     Contributed Assets and BAM Assumed Liabilities).  Bidder is engaged in the
     business of owning, managing and operating assets similar to the BAM
     Contributed Assets.  BAM, the Transferring Partnerships, Bidder and Bidder
     Member desire to: (i) cause BAM and the Transferring Partnerships to
     contribute the BAM Contributed Assets and BAM Assumed Liabilities to a
     newly organized Delaware limited liability company named Crown Atlantic
     Company LLC ("OpCo") in exchange for membership interests in OpCo; (ii)
                   ----                                                     
     cause Bidder Member to contribute $250,000,000 in cash (the "Bidder
                                                                  ------
     Contributed Cash") to OpCo in exchange for membership interests in OpCo;
     ----------------                                                        
     (iii) cause OpCo and BAM and each of the Transferring Partnerships to enter
     into the Global Lease (hereinafter defined); (iv) cause OpCo and BAM to
     enter into the Build-to-Suit Agreement (hereinafter defined) for the
     construction and operation of additional tower structures upon which BAM
     (or its affiliates) will lease capacity; (v) thereafter, contribute their
     membership interests in OpCo (other than the BAM Retained Interest
     (hereinafter defined)) to a newly organized Delaware limited liability
     company named Crown Atlantic Holding Sub LLC ("HoldCo Sub") in exchange for
                                                    ----------                  
     membership interests in HoldCo Sub; (vi) cause OpCo to distribute to HoldCo
     Sub $200,000,000 in cash; (vii) thereafter, contribute their membership
     interests in HoldCo Sub to a newly organized Delaware limited liability
     company named Crown Atlantic Holding Company LLC ("HoldCo") and, in
                                                        ------          
     addition, Bidder Member will contribute the Bidder Contributed Shares
     (hereinafter defined) to HoldCo in exchange for membership interests in
     HoldCo; (viii) thereafter, cause HoldCo Sub to obtain financing in the
     aggregate principal amount of at least $180,000,000 (except as adjusted
     pursuant to its terms and conditions), which shall be guaranteed by BAM
     Tower Funding Corporation, a Delaware corporation ("BAM-Sub") pursuant to
                                                         -------              
     the BAM-Sub Guarantee (hereinafter defined), and make a distribution of
     $380,000,000 in cash to HoldCo, and then cause HoldCo to immediately make a
     distribution of $380,000,000 in cash to BAM and the Transferring
     Partnerships; (ix) cause HoldCo Sub and OpCo to enter into a Management
     Agreement (hereinafter defined) pursuant to which HoldCo Sub will provide
     certain services to and on behalf of OpCo; (x) cause OpCo, HoldCo Sub and
     BAM to enter into a Transitional Services Agreement (hereinafter defined)
     pursuant to which BAM will offer to OpCo certain transitional 
<PAGE>
 
     services; and (xi) cause Bidder, HoldCo Sub and OpCo to enter into a Bidder
     Services Agreement (hereinafter defined) pursuant to which Bidder will
     offer to OpCo and HoldCo Sub certain services with respect to the tower
     structures owned by OpCo and HoldCo Sub. The parties hereto desire to
     provide in this Agreement for the terms and conditions under which BAM, the
     Transferring Partnerships and Bidder Member will contribute the BAM
     Contributed Assets and the BAM Assumed Liabilities, the Bidder Contributed
     Cash and the Bidder Contributed Shares, respectively, and OpCo, HoldCo Sub
     and HoldCo will be organized and operated. The provisions of this Preamble
     are subject to the provisions of Section 3.8.

     NOW, THEREFORE, in consideration of the Preamble and the terms, conditions,
representations, warranties, covenants, agreements and provisions herein
contained, and intending to be legally bound hereby, the parties hereto agree as
follows:


                                   ARTICLE 1

                              CERTAIN DEFINITIONS

     For convenience, certain terms used in this Agreement or any Schedule or
Transaction Document are listed in alphabetical order and defined or referred to
below (such terms as well as any other terms defined elsewhere in this Agreement
shall be equally applicable to both the singular and plural forms of the terms
defined).  The term "either party" shall, unless the context otherwise requires,
refer to BAM and any of its Affiliates that are parties to this Agreement on the
one hand, and Bidder and any of its Affiliates that are parties to this
Agreement, on the other hand.

     "AAA" is defined in Section 11.1.1.
      ---                               

     "Accounting Firm" is defined in Section 2.3.8.
      ---------------                              

     "Action" is defined in Section 10.9.
      ------                             

     "Additional Consideration" is defined in Section 3.8.
      ------------------------                            

     "Actual Third Party Rents for the Included Towers" is defined in Section
      ------------------------------------------------                       
3.9.

     "Adjusted Aggregate Share Value" is defined in Section 3.8.
      ------------------------------                            

     "Affiliates" means, with respect to any Person, any Persons controlling,
      ----------                                                             
controlled by or under common control with that Person, as well as any executive
officers, directors and majority-owned entities of that Person or its other
Affiliates.

     "Agreement" means this Agreement and the Exhibits and Schedules hereto, as
      ---------                                                                
any of the foregoing may, from time to time, be amended, modified or restated in
accordance with the provisions hereof.

     "Agreement Regarding Identified Employees" is defined in Section 6.3.2.
      ----------------------------------------                              

                                      -2-
<PAGE>
 
     "Amount of Decrease in Consideration" is defined in Section 3.8.
      -----------------------------------                            

     "Anticipated Financing" is defined in Section 3.6.
      ---------------------                            

     "Board of Representatives" is defined in Section 8.4.
      ------------------------                            

     "BAM" is defined above in the preamble.
      ---                                   

     "BAM Affiliate" means any Affiliate of BAM.
      -------------                             

     "BAM Assumed Liabilities" is defined in Section 2.3.3.
      -----------------------                              

     "BAM Capital Distribution" is defined in Section 3.4.
      ------------------------                            

     "BAM Contracts" is defined in Section 5.1.8.
      -------------                              

     "BAM Contributed Assets" is defined in Section 2.3.1.
      ----------------------                              

     "BAM Excluded Assets" is defined in Section 2.3.2.
      -------------------                              

     "BAM HoldCo Interest" is defined in Section 3.5.
      -------------------                            

     "BAM HoldCo Interest Purchaser" is defined in Section 9.5(b).
      -----------------------------                               

     "BAM HoldCo Sub Interest" is defined in Section 3.2.
      -----------------------                            

     "'BAM's knowledge" or "knowledge of BAM" or words of similar import means
       ---------------      ----------------                                  
the actual knowledge, of any of the following persons who are employees of BAM
holding the position (as of the date hereof) indicated after their name (and any
person succeeding to any such position prior to the Closing but only to the
extent they acquired knowledge): David Wu, Managing Director, Business
Development; Anthony Melone, Executive Director, Network; David Benson, Chief
Financial Officer; and Dennis Strigl, President and Chief Executive Officer.

     "BAM Material Adverse Effect" means an Event which has had or is reasonably
      ---------------------------                                               
likely to have a material adverse effect on (i) the BAM Contributed Assets or
which would materially increase the BAM Assumed Liabilities, in each case taken
as a whole, except any such effect resulting from or arising in connection with
(a) this Agreement or the transactions contemplated hereby, (b) changes or
conditions (including without limitation changes in technology, law, or
regulatory or market environment) affecting the industry in which the owners or
users of communications tower structures operate, or (c) changes in economic,
regulatory or political conditions generally, (ii) the validity or
enforceability of this Agreement or any of the Transaction Documents, or (iii)
the ability of BAM or any Transferring Partnership to perform its obligations
under this Agreement or any of the Transaction Documents.

     "BAM Offer" is defined in Section 9.4.
      ---------                            

     "BAM OpCo Interest" is defined in Section 2.3.1.
      -----------------                              

                                      -3-
<PAGE>
 
     "BAM Retained Interest" is defined in Section 2.3.1.
      ---------------------                              

     "BAM Retained Liability" is defined in Section 2.3.4.
      ----------------------                              

     "BAM Retained Interest" is defined in Section 2.3.1.
      ---------------------                              

     "BAM-Sub" is defined in above in the preamble.
      -------                                      

     "BAM-Sub Guarantee" is defined in Section 3.7.
      -----------------                            

     "Benefit Plan" means all employee benefit, health, welfare, supplemental
      ------------                                                           
unemployment benefit, bonus, incentive, pension, profit sharing, deferred
compensation, savings and thrift, stock compensation, stock purchase, severance,
retirement, termination, vacation, hospitalization insurance, life and
disability insurance, medical, dental, disability, fringe benefit and similar
plans, programs, arrangements or practices including, without limitation, each
`employee benefit plan' as defined in Section 3(3) of ERISA.
- ----------------------                                      

     "Bidder" is defined above in the preamble.
      ------                                   

     "Bidder Affiliate" means any Affiliate of Bidder.
      ----------------                                

     "Bidder Contributed Cash" is defined above in the preamble.
      -----------------------                                   

     "Bidder Contributed Shares" is defined in Section 3.5.
      -------------------------                            

     "Bidder HoldCo Interest" is defined in Section 3.5.
      ----------------------                            

     "Bidder HoldCo Interest Purchaser" is defined in Section 9.5(a).
      --------------------------------                               

     "Bidder HoldCo Sub Interest" is defined in Section 3.2.
      --------------------------                            

     "Bidder's knowledge" or "knowledge of Bidder" or words of similar import
      ------------------      -------------------                            
means the actual knowledge of any of the following persons who are employees of
Bidder holding the position (as of the date hereof) indicated after their name
(and any person succeeding to any such position prior to the Closing but only to
the extent they acquired knowledge): Ted B. Miller, Jr., Chief Executive Officer
and Vice Chairman, David L. Ivy, President, Charles C. Green, III, Executive
Vice President and Chief Financial Officer, and John Kelly, Chief Operating
Officer of Crown Communications.

     "Bidder Material Adverse Effect" means an Event which has had or is
      ------------------------------                                    
reasonably likely to have a material adverse effect on (i) the business,
operations, assets, liabilities, condition (financial or otherwise) or prospects
of the Bidder and its subsidiaries taken as a whole, except any such effect
resulting from or arising in connection with (a) this Agreement or the
transactions contemplated hereby, (b) changes or conditions (including without
limitation changes in technology, law, or regulatory or market environment)
affecting the industry in which the owners or users of communications tower
structures operate, or (c) changes in economic, regulatory or political
conditions generally, (ii) the validity or enforceability of this Agreement or
any of the Transaction Documents, or (iii) the ability of Bidder to perform its
obligations under this Agreement or any of the Transaction Documents.

                                      -4-
<PAGE>
 
     "Bidder Member" is defined above in the preamble.
      -------------                                   

     "Bidder Offer" is defined in Section 9.3.
      ------------                            

     "Bidder OpCo Interest" is defined in Section 2.4.
      --------------------                            

     "Bidder Services Agreement" is defined in Section 2.7.
      -------------------------                            

     "Bidder's SEC Reports" is defined in Section 5.3.6.
      --------------------                              

     "Build-to-Suit Agreement" is defined in Section 2.6.
      -----------------------                            

     "Business Plan" is defined in Section 8.2.12.
      -------------                               

     "Charter Documents" means an entity's certificate or articles of
      -----------------                                              
incorporation, certificate defining the rights and preferences of securities,
articles of organization, general or limited partnership agreement, certificate
of limited partnership, limited liability company agreement, joint venture
agreement or similar document governing the entity.

     "Claim Notice" is defined in Section 10.5(a).
      ------------                                

     "Claim Response" is defined in Section 10.5(a).
      --------------                                

     "Closing" is defined in Section 4.1.
      -------                            

     "Closing Date" is defined in Section 4.1.
      ------------                            

     "Closing Financing Amount" is defined in Section 3.6.
      ------------------------                            

     "Code" means the Internal Revenue Code of 1986, as amended, and all
      ----                                                              
regulations promulgated thereunder, as in effect from time to time, and any
reference to any such statutory or regulatory provision shall be deemed to be a
reference to any successor statutory or regulatory provision.

     "Commitment Letter" is defined in Section 3.6.
      -----------------                            

     "Contingent Obligations" is defined in Section 8.1.7.
      ----------------------                              

     "Contract" means any written contract, agreement, lease, instrument or
      --------                                                             
other commitment that is binding on any Person or its property under applicable
Law.

     "Contributed Cash Distribution" is defined in Section 3.4.
      -----------------------------                            

     "Court Order" means any judgment, decree, injunction, order or ruling of
      -----------                                                            
any federal, state, local or foreign court, Governmental Authority or any
arbitrator that is binding on any Person or its property under applicable Law.

     "Covered Persons" is defined in Section 5.1.10.
      ---------------                               

                                      -5-
<PAGE>
 
     "CPI" means the Consumer Price Index for All Urban Consumers, U.S. City
      ---                                                                   
Average, for All Items (1982-1984 = 100), as published by the Bureau of Labor
Statistics of the U.S. Department of Labor, and any successor index.  If the CPI
is discontinued and there is no successor index, BAM shall in good faith select
a comparable index to replace the CPI and the index selected by BAM shall be
subject to Bidder's approval, which approval shall not be unreasonably withheld
or delayed.

     "CTA" is defined in Section 5.1.3.
      ---                              

     "CTDEP" is defined in Section 5.1.3.
      -----                              

     "Deductible Amount" is defined in Section 10.6.
      -----------------                             

     "Default" means (a) a breach, default or violation, (b) the occurrence of
      -------                                                                 
an event that with or without the passage of time or the giving of notice, or
both, would constitute a breach, default or violation or (c) with respect to any
Contract, the occurrence of an event that with or without the passage of time or
the giving of notice, or both, would give rise to a right of termination,
renegotiation or acceleration or a right to receive damages or a payment of
penalties.

     "Dispute" is defined in Section 11.1.
      -------                             

     "Encumbrances" means any lien, mortgage, security interest, pledge,
      ------------                                                      
restriction on transferability, defect of title, option or other claim, charge
or encumbrance of any nature whatsoever on any property or property interest.

     "Entity" means any corporation, firm, unincorporated organization,
      ------                                                           
association, partnership, limited liability company, trust (inter vivos or
testamentary), estate of a deceased, insane or incompetent individual, business
trust, joint stock company, joint venture or other organization, entity or
business, whether acting in an individual, fiduciary or other capacity, or any
Governmental Authority.

     "Environmental Condition" means any condition or circumstance, including
      -----------------------                                                
the presence of Hazardous Substances, created by BAM at any Tower Site that did
or does (a) require abatement or correction under an Environmental Law, (b) give
rise to any civil or criminal Liability on the part of BAM under any
Environmental Law relating to the use or occupancy of the Tower Sites or (c)
constitute a public or private nuisance.

     "Environmental Law" means all Laws, Court Orders and principles of common
      -----------------                                                       
law relating to Hazardous Substances, pollution, protection of the environment
or human health or safety.

     "ERISA" means the Employee Retirement Income Security Act of 1974, as
      -----                                                               
amended, and all regulations promulgated thereunder, as in effect from time to
time, and any reference to any such statutory or regulatory provision shall be
deemed to be a reference to any successor statutory or regulatory provision.

     "Event" means the existence or occurrence of any act, action, activity,
      -----                                                                 
circumstance, condition, event, fact, failure to act, omission, incident or
practice, or any set or combination of any of the foregoing.

                                      -6-
<PAGE>
 
     "Exchange Act" means the Securities Exchange Act of 1934, as amended.
      ------------                                                        

     "Expiration Date(s)" is defined in Section 10.8.
      ------------------                             

     "FAA" means the Federal Aviation Administration, or any successor
      ---                                                             
Governmental Authority.

     "FCC" means the Federal Communications Commission, or any successor
      ---                                                               
Governmental Authority.

     "Financing Distribution" is defined in Section 3.6.
      ----------------------                            

     "Financing Documents" is defined in Section 4.2.
      -------------------                            

     "GAAP" is defined in Section 5.3.6.
      ----                              

     "Global Lease" is defined in Section 2.5.
      ------------                            

     "Governmental Authority" means any federal, state, territorial, county,
      ----------------------                                                
municipal, local or other government or governmental agency or body or any other
type of regulatory body, whether domestic or foreign, including without
limitation the FCC and the FAA.

     "Governmental Permits" means all governmental approvals, permits, licenses,
      --------------------                                                      
registrations, certificates of occupancy, approvals and other governmental
authorizations.

     "Hazardous Substances" means any toxic, radioactive or hazardous gaseous,
      --------------------                                                    
liquid or solid material or waste that may or could pose a hazard to the
environment or human health or safety including (a) any `hazardous substances,'
                                                         --------------------- 
as defined under the Comprehensive Environmental Response, Compensation and
Liability Act, 42 U.S.C. (S)(S) 9601 et seq., (b) any `extremely hazardous
                                     -- ----           -------------------
substance,' `hazardous chemical' or `toxic chemical,' each as defined under the
- ----------   ------------------      ---------------                           
Emergency Planning and Community Right-to-Know Act, 42 U.S.C. (S)(S) 11001 et
                                                                           --
seq., (c) any `hazardous waste,' as defined under the Solid Waste Disposal Act,
- ----           ----------------                                                
as amended by the Resource Conservation and Recovery Act, 42 U.S.C. (S)(S) 6901
et seq., (d) any `pollutant,' as defined under the Clean Water Act, 33 U.S.C.
- -- ----           ----------                                                 
(S)(S) 1251 et seq., and (e) any regulated substance or waste under any Laws or
            -- ----                                                            
Court Orders that have been enacted, promulgated or issued by any Governmental
Authority concerning pollution, protection of the environment or human health or
safety.

     "HoldCo" is defined above in the preamble.
      ------                                   

     "HoldCo Operating Agreement" is defined in Section 3.5.
      --------------------------                            

     "HoldCo Sub" is defined above in the preamble.
      ----------                                   

     "HoldCo Sub Operating Agreement" is defined in Section 3.2.
      ------------------------------                            

     "HSR Act" means the Hart-Scott-Rodino Antitrust Improvements Act of 1976,
      -------                                                                 
as amended, and all regulations promulgated thereunder, as in effect from time
to time, and any reference to any such 

                                      -7-
<PAGE>
 
statutory or regulatory provision shall be deemed to be a reference to any
successor statutory or regulatory provision.

     "Identified Employee" is defined in Section 5.1.9.
      -------------------                              

     "Included Tower Structures" is defined in Section 3.8.
      -------------------------                            

     "Indebtedness" is defined in Section 8.1.4.
      ------------                              

     "Indemnified Party" is defined in Section 10.5(a).
      -----------------                                

     "Indemnified BAM Party" is defined in Section 10.2(a).
      ---------------------                                

     "Indemnified OpCo Party" is defined in Section 10.1(a).
      ----------------------                                

     "Indemnitor" is defined in Section 10.5(a).
      ----------                                

     "Intellectual Property" means any patents, patent applications, reissue
      ---------------------                                                 
patents, patents of addition, divisions, renewals, continuations, continuations-
in-part, substitutions, additions and extensions of any of the foregoing,
fictional business names, trade names, logos, registered and unregistered
copyrights, copyright applications, registered and unregistered trademarks,
trademark applications, registered and unregistered service marks, service mark
applications, technology rights and licenses, trade secrets, franchises, know-
how, inventions and other intellectual property.

     "ISRA" is defined in Section 5.1.3.
      ----                              

     "Law" means any administrative, judicial, legislative or other statute,
      ---                                                                   
law, ordinance, regulation, rule, order, decree, writ, award or decision
(including without limitation the common law), including those covering
environmental, energy, safety, health, transportation, bribery, recordkeeping,
zoning, antidiscrimination, antitrust, wage and hour, and price and wage control
matters.

     "Lender" is defined in Section 3.6.
      ------                            

     "Liability" means any direct or indirect liability, indebtedness,
      ---------                                                       
obligation, cost, expense, claim, loss, damage, deficiency, guaranty or
endorsement of (other than endorsements for collection or deposit in the
ordinary course of business) or by any Person.

     "Liquidated Claim Notice" is defined in Section 10.5(a).
      -----------------------                                

     "Litigation" means any lawsuit, action, arbitration, administrative or
      ----------                                                           
other proceeding, criminal prosecution or formal governmental investigation or
inquiry, counterclaim, whether at law or in equity.

     "Losses" is defined in Section 10.1(a).
      ------                                

     "Management Agreement" is defined in Section 3.3.
      --------------------                            

     "Maximum Indemnification" is defined in Section 10.6.
      -----------------------                             

                                      -8-
<PAGE>
 
     "Minor Contract" is defined in Section 5.1.8.
      --------------                              

     "Monthly Third Party Rent Shortfall" is defined in Section 3.9.
      ----------------------------------                            

     "NJDEP" is defined in Section 5.1.3.
      -----                              

     "Non-Assignable Contract" is defined in Section 2.3.6.
      -----------------------                              

     "OpCo" is defined above in the preamble.
      ----                                   

     "OpCo Operating Agreement" is defined in Section 2.2.
      ------------------------                            

     "OpCo Towers" is defined in Section 8.2.12.
      -----------                               

     "Optional Bidder Phase I Report(s)" is defined in Section 6.2.5.
      ---------------------------------                              
 
     "Ordinary course" or "ordinary course of business" means the ordinary
      ---------------      ---------------------------                    
course of conducting the ownership, operation, use and leasing of the Tower
Structures by BAM and/or the Transferring Partnerships consistent with past
practice.

     "Permitted Encumbrances" means  (i) liens for current real or personal
      ----------------------                                               
property taxes not yet due and payable, (ii) liens or other rights of third
parties disclosed in the SCHEDULES to Section 5.1, (iii) worker's, carrier's and
materialman's liens not yet due and payable,  (iv) with respect to Leased Sites
(as defined below in the definition of Tower Sites), any liens placed upon such
real property other than in connection with obligations or liabilities of BAM,
(v) easements, rights of way or similar grants of rights to a third party for
access to or across any real property, including, without limitation, rights of
way or similar rights granted to any utility or similar entity in connection
with the provision of  electric, water, sewage, telephone, gas or similar
services, (vi) the Tower Leases (as defined in the definition of Tower Related
Assets), and  (vii) liens that are immaterial in character, amount, and extent,
and that do not detract from the value or interfere in any material respect with
the present use of the properties they affect.

     "Permitted Schedule Updates" is defined in Section 6.1.2.
      --------------------------                              

     "Person" means any natural person or Entity.
      ------                                     

     "Prime Rate" means the "Prime Rate" of interest, as published in the "Money
      ----------                                                                
Rates" table of The Wall Street Journal, Eastern Edition, from time to time.
                -----------------------                                     

     "Required BAM Phase I Report(s)" is defined in Section 6.1.7.
      ------------------------------                              

     "Required Consents" is defined in Section 7.1.6.
      -----------------                              

     "Response Period" is defined in Section 10.5(a).
      ---------------                                

     "Rights Agreement" is defined in Section 6.2.7.
      ----------------                              

                                      -9-
<PAGE>
 
     "Rights Agreement Amendment" is defined in Section 6.2.7.
      --------------------------                              

     "SEC" means the United States Securities and Exchange Commission.
      ---                                                             

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

     "Solvent" is defined in Section 8.1.2.
      -------                              

     "Swap Lease Agreement(s)" is defined in Section 3.10.
      -----------------------                             

     "Target Third Party Rents for the Included Towers" is defined in Section
      ------------------------------------------------                       
3.9.

     "Taxes" (and "Taxable", which shall mean subject to Tax) means all taxes,
      -----        -------                                                    
duties, charges, fees, levies or other assessments imposed by any taxing
authority, whether domestic or foreign, including, without limitation, income
(net, gross or other including recapture of any tax items such as investment tax
credits), alternative or add-on minimum tax, capital gains, gross receipts,
value-added, excise, withholding, personal property, real estate, sale, use, ad
valorem, license, lease, service, severance, stamp, transfer, payroll,
employment, customs, duties, alternative, add-on minimum, estimated and
franchise taxes (including any interest, levies, charges, penalties or additions
attributable to or imposed on or with respect to any such assessment).

     "Tower Related Assets" shall mean (a) the leases of rights to use spaces on
      --------------------                                                      
the Tower Structures that are identified in 2 ANNEX III hereto and located on
Tower Sites (hereinafter defined) (the "Tower Leases") and security deposits (if
                                        ------------                            
any) from tenants under the Tower Leases, (b) the Site Leases, (c) all Contracts
with respect to the management, operation, maintenance, servicing and
construction of, and the provision of utility services to, the Tower Structures
("Tower Service Contracts"), (d) any existing leases (or licenses or other
  -----------------------                                                 
Contracts) of BAM or the Transferring Partnerships for equipment or other
personal property which are Tower Structures ("Tower Equipment Leases"), (e) all
                                               ----------------------           
prepaid items, unbilled costs and fees, and accounts, notes and other
receivables under the Tower Service Contracts, Site Leases and Tower Equipment
Leases as of the Closing Date ("Prepaid Expenses"), (f) all rights to any
                                ----------------                         
warranties held by BAM or the Transferring Partnerships with respect to the
Tower Structures or Tower Related Assets to the extent such rights are
assignable, including those assignable with consent to the extent such consents
are received, or, to the extent not so received, all amounts received by BAM or
the Transferring Partnerships with respect to claims made after the Closing Date
with respect to such unassigned rights to any warranties, and (g) copies of, or
extracts from, all current files and records of BAM or the Transferring
Partnerships to the extent that such files or records contain information solely
related to the design, construction, management, operation, maintenance,
ownership, occupancy or leasing of the BAM Contributed Assets or the Identified
Employees.

     "Tower Sites" shall mean the sites of the Tower Structures that are owned
      -----------                                                             
or leased by BAM or the Transferring Partnerships, including all fee, ground
leasehold interests and easements pertaining to such tower sites owned by BAM or
the Transferring Partnerships and shall include a fee ownership in the real
property associated with the Tower Structures designated as "Owned Sites" in
                                                             -----------    
ANNEX I hereto, and the leasehold interest in and to the real property
associated with the Tower Structures designed as "Leased Sites" in ANNEX I
                                                  ------------            
hereto pursuant to the terms of the ground leases related thereto identified in
ANNEX II (the "Site Leases").
               -----------   

                                      -10-
<PAGE>
 
     "Tower Structures"  shall mean the communications tower structures situated
      ----------------                                                          
at the locations that are identified on ANNEX I and owned or leased by BAM or
the Transferring Partnerships, and BAM's and the Transferring Partnerships'
rights to all attached  tower lighting equipment, alarm systems, grounding
systems and physical improvements on each Tower Site, including fencing, along
with any tenant leases, easement rights necessary for access to the Tower
Structure and for location of the Tower Structure and guy wires, if any,
associated therewith; provided however, such term does not include any
equipment, property or other assets placed upon the Tower Structures or Tower
Sites by third parties pursuant to Tower Leases or other Contracts or any BAM
Excluded Assets (as defined in Section 2.3.2 hereof).

     "Transaction Documents" means, collectively, this Agreement, the Global
      ---------------------                                                 
Lease, the Build-to-suit Agreement, the Bidder Services Agreement, the
Management Agreement, and each of the other documents and agreements listed in
Section 4.2.

     "Transferring Partnership" means those partnerships that are listed on 1
      ------------------------                                               
EXHIBIT A hereto and which (i) are signatories to this Agreement on the date
hereof, or (ii) have joined in the execution and delivery of this Agreement by
executing and delivering to BAM, Bidder and Bidder Member, after the date hereto
but prior to the Closing, a Joinder to Formation Agreement in the form attached
hereto as 1 EXHIBIT B (each, a "Joinder").  The Transferring Partnerships are
                                -------                                      
referred to individually herein as a "Transferring Partnership".
                                      ------------------------  

     "Transitional Services Agreement" is defined in Section 2.8.
      -------------------------------                            

     "Unliquidated Claim" is defined in Section 10.5(a).
      ------------------                                


                                   ARTICLE 2

                               FORMATION OF OPCO

      2.1 Purpose of OpCo.  The purpose of OpCo is (i) to acquire and retain
          ---------------                                                   
ownership of, and maintain and operate, the BAM Contributed Assets and the
Bidder Contributed Cash, (ii) to assume, perform and discharge the BAM Assumed
Liabilities, (iii) to perform all obligations under the Global Lease, (iv) to
perform all obligations under the Build-to-Suit Agreement and (v) to make space
on the communications towers owned by OpCo from time to time available for lease
by HoldCo Sub to third parties on behalf of OpCo pursuant to a Management
Agreement.

      2.2 Formation of OpCo.  Subject to the terms and conditions of this
          ------------------                                             
Agreement and in reliance upon the representations and warranties and covenants
contained herein, at the Closing (a) BAM, the Transferring Partnerships, and
Bidder Member shall form OpCo by filing an appropriate certificate of formation
with the Secretary of State of the State of Delaware, and (b) BAM and Bidder
Member shall execute and deliver the OpCo Operating Agreement in the form
attached hereto as 1 EXHIBIT 2.2 (the "OpCo Operating Agreement").
                                       ------------------------   

                                      -11-
<PAGE>
 
      2.3 Contribution of BAM Contributed Assets and BAM Assumed Liabilities.
          ------------------------------------------------------------------ 

          2.3.1  Transfer of BAM Contributed Assets.  Subject to the terms and
                 ----------------------------------                           
conditions of this Agreement, at the Closing, in exchange for the issuance by
OpCo to BAM, of a 48.1 Percentage Interest in OpCo (of which 48.099 Percentage
Interests are referred to herein as the "BAM OpCo Interest" and .001 Percentage
                                         -----------------                     
Interest is herein referred to as the "BAM Retained Interest"), which BAM OpCo
                                       ---------------------                  
Interest shall be apportioned between BAM and the Transferring Partnerships and
among the Transferring Partnerships as set forth on 1 EXHIBIT A-1, BAM and each
of the Transferring Partnerships shall grant, contribute, convey, assign,
transfer and deliver to OpCo, and OpCo shall acquire and accept the contribution
from BAM and each of the Transferring Partnerships of, all right, title and
interest of BAM or the respective Transferring Partnership in and to all of the
assets, properties and rights of BAM or the respective Transferring Partnership
specifically set forth below in this Section 2.3.1 (collectively, the "BAM
                                                                       ---
Contributed Assets"), free and clear of all Encumbrances (other than Permitted
- ------------------                                                            
Encumbrances), as the same shall exist on the Closing Date:

               (a)  all Tower Structures;

               (b) all of BAM's rights to all Tower Sites;
 
               (c)  all Tower Related Assets;

               (d) all rights under any Governmental Permits (excluding FCC
     licenses) held exclusively with respect to the ownership or use of  the
     Tower Structures or Tower Sites and not used or useful by BAM or the
     respective Transferring Partnership in any other part of its business and
     operations, to the extent such Governmental Permits are transferable to
     OpCo.

The provisions of this Section 2.3.1 are subject to the provisions of Sections
2.3.8, 3.8 and 6.1.7. EXHIBIT A-1 is not attached to this Agreement as of the
date hereof.  EXHIBIT A-1 shall be prepared by BAM based upon the partnerships
listed on EXHIBIT A that become Transferring Partnerships.  BAM shall deliver
EXHIBIT A-1 to Bidder and the Transferring Partnerships at the Closing.

          2.3.2  Excluded Assets.  Notwithstanding anything to the contrary in
                 ---------------                                              
Section 2.3.1, the BAM Contributed Assets shall not include any of the following
(collectively, the "BAM Excluded Assets"):
                    -------------------   

               (a) any communications antennae, microwave transmitters or
     receivers, wiring, devices, switches, generators or other communications
     equipment, or any buildings, shelters or other structures housing such
     equipment with respect to such Tower Structures and Tower Sites;

               (b) BAM's (or the Transferring Partnerships') rights to the real
     estate listed in 3 SCHEDULE 2.3.2(B), being real estate on which switch
     equipment of BAM or its Affiliates is located;

               (c) corporate seals, Charter Documents, minute books, stock
     books, tax returns, books of account and other financial records of BAM or
     the respective Transferring Partnership, sales and marketing catalogs,
     brochures and advertising 

                                      -12-
<PAGE>
 
     material, the names "NYNEX," "Bell Atlantic," "Bell Atlantic Mobile,"
     "BAM," "Cellco," "Cellular One" and all other names under which BAM, any
     Transferring Partnership, or any of their respective Affiliates conducts
     business;

               (d) all Intellectual Property of BAM or any Affiliate of BAM or
     any Transferring Partnership, other than plans and specifications of the
     Tower Structures and data (in electronic or machine-readable form) with
     respect to third party tenants and lessors with respect to the Tower
     Structures;

               (e) any equipment or transmissions systems used by BAM for the
     remote monitoring of the Tower Structures;

               (f) any assets, properties or rights which are not exclusively
     BAM Contributed Assets;

               (g) the rights that accrue or will accrue to BAM under this
     Agreement or any of the other Transaction Documents, including the
     consideration paid or to be paid to BAM hereunder;

               (h) any claims or rights against third parties except solely to
     the extent such claims or rights relate to Assumed Liabilities or the BAM
     Contributed Assets;

               (i) any and all rights retained by and/or granted to BAM pursuant
     to the Global Lease;

               (j) the assets specified in SCHEDULE 2.3.2;

          (k) any of the assets specified in any of the Annexes that are owned
or leased by any partnership which is listed on EXHIBIT A but does not become a
Transferring Partnership; and

          (l) any Tower Sites (and all Tower Structures, Tower Related Assets
and other BAM Contributed Assets associated with such Tower Sites) excluded from
the BAM Contributed Assets pursuant to Sections 2.3.5, 2.3.6 and 6.1.7 below.

The provisions of this Section 2.3.2 are subject to the provisions of Section
2.3.8.

          2.3.3  Assumption of BAM Assumed Liabilities.  Subject to Section 
                 -------------------------------------              
2.3.4, as of the Closing, OpCo shall acquire the BAM Contributed Assets subject
only to, and shall undertake, assume, perform and otherwise pay, satisfy and
discharge, and on the terms set forth in Article 10 hold BAM (and the
Transferring Partnerships, as applicable) harmless from, the following
Liabilities (collectively, the "BAM Assumed Liabilities"):
                                -----------------------   

               (a) all Liabilities (other than any BAM Retained Liability) of
     BAM or the Transferring Partnerships under all Contracts and purchase
     orders included within the BAM Contributed Assets;

                                      -13-
<PAGE>
 
               (b) all Liabilities (other than any BAM Retained Liability) of
     BAM or the Transferring Partnerships in respect of the BAM Contributed
     Assets existing as of the Closing Date; and

               (c) the rents, revenues, Taxes, charges and payments that are
     apportioned for the account of OpCo pursuant to Section 2.3.8 hereof.

          2.3.4  Limitations on Assumption of Liabilities.  Notwithstanding
                 ----------------------------------------                  
Section 2.3.3, OpCo is not assuming under this Agreement any Liabilities that
are not specifically described in Section 2.3.3 or any of the following (each, a
"BAM Retained Liability"): (i) any Liabilities arising out of any breach by BAM
 ----------------------                                                        
or any of the Transferring Partnerships prior to the Closing of any provision of
any Contract; (ii) any product liability or similar claim for injury to any
Person or property, regardless of when made or asserted, that arises out of or
is based upon any express or implied representation, warranty, agreement or
guarantee made by BAM or any of the Transferring Partnerships, or alleged to
have been made by BAM or any of the Transferring Partnerships, or which is
imposed or asserted to be imposed by operation of Law in connection with any
service performed or product sold or leased by or on behalf of BAM or any of the
Transferring Partnerships prior to the Closing; (iii) any federal, state, local
or foreign income or other Tax payable with respect to the BAM Contributed
Assets or other properties or operations of BAM or any member of any affiliated
group of which BAM is a member for any period prior to the Closing; (iv) except
to the extent that such Liabilities are to be assumed by OpCo, as may be set
forth in the Agreement Regarding Identified Employees, any Liabilities arising
prior to or as a result of the Closing to or with respect to any employees,
agents or independent contractors of BAM or any of the Transferring
Partnerships, whether or not employed by OpCo after the Closing and whether or
not arising under any applicable Law, Benefit Plan or other arrangement with
respect thereto; (v) any Liabilities of BAM or any of the Transferring
Partnerships arising from or incurred in connection with the preparation,
negotiation, execution and performance of this Agreement, the other Transaction
Documents and the Transactions except as otherwise provided herein and therein;
(vi) any Liabilities, whether known or unknown, arising from or related to (A)
any violation prior to the Closing of Environmental Laws by BAM or any of the
Transferring Partnerships relating to the ownership, use or occupancy of the BAM
Contributed Assets by BAM, or any Environmental Condition caused by BAM or any
of the Transferring Partnerships existing prior to the Closing, or (B) any
Environmental Condition (which for purposes of this Section 2.3.4(vi)(B) shall
have the meaning set forth in Article 1 except that the phrase "created by BAM"
shall be treated as deleted from such definition) at any of the Tower Sites
included in the BAM Contributed Assets and which is revealed by any of the
Required BAM Phase I Reports, (vii) Events occurring on or after the date hereof
but prior to the Closing Date in connection with the ownership, possession,
occupancy, use and operation of the BAM Contributed Assets, (viii) except to the
extent specifically included in the Assumed Liabilities any and all costs,
expenses or payments associated with the completion of construction of Tower
Structures located on Tower Sites to be conveyed hereunder, except to the extent
that Bidder and BAM have agreed to modifications to such Tower Structures in
which case the cost of such modifications shall be included in the Assumed
Liabilities, and (ix) the rents, revenues, Taxes, charges and payments that are
apportioned for the account of BAM pursuant to Section 2.3.8 hereof.

          2.3.5  Assignment or Subcontracting of Purchased Contracts.  BAM will
                 ---------------------------------------------------           
use commercially reasonable efforts to obtain any required consents to the
assignment to OpCo of Contracts or any other assets included in the BAM
Contributed Assets. To the extent that any such required consent to the
assignment of any such Contract or asset is not obtained, BAM will subcontract
to OpCo the 

                                      -14-
<PAGE>
 
performance of all obligations and the right to receive all benefits thereunder.
To the extent the consent of the counterparty to such subcontracting is required
under the terms of any such Contract or asset, BAM will use commercially
reasonable efforts to obtain such consent; and BAM will not subcontract as
described in the immediately preceding sentence in those cases, if any, in which
subcontracting is expressly prohibited. If BAM is precluded from subcontracting
in accordance with the foregoing or entering into a substantially similar
relationship, the subject Contract or asset shall not be included in the BAM
Contributed Assets, and the Liabilities under such Contract shall not be
included in the BAM Assumed Liabilities.

          2.3.6  Consent of Third Parties.  Nothing in this Agreement shall be
                 ------------------------                                     
construed as an attempt by BAM to assign to OpCo pursuant to this Agreement any
Contract, Governmental Permit, franchise, claim or asset included in the BAM
Contributed Assets that is by its terms or by Law nonassignable without the
consent of any other party or parties, unless such consent or approval shall
have been given, or as to which all the remedies for the enforcement thereof
available to BAM would not by Law pass to OpCo as an incident of the assignments
provided for by this Agreement (a "Non-Assignable Contract").  To the extent
                                   -----------------------                  
that any consent in respect of, or a novation of, a Non-Assignable Contract has
not been obtained, BAM shall continue to use commercially reasonable efforts to
obtain any such consent or novation until such time as it shall have been
obtained, and BAM shall use commercially reasonable efforts to cooperate with
OpCo to provide that OpCo shall receive the interest of BAM in the benefits
under such Non-Assignable Contract, including performance by BAM as agent if
commercially reasonable, provided that OpCo shall undertake to pay or satisfy
the corresponding Liabilities under the terms of such Non-Assignable Contract to
the extent that OpCo would have been responsible therefor if such consent or
approval had been obtained.  If, despite such efforts, BAM is unable to provide
OpCo with the interest of BAM in the benefits under any such Non-Assignable
Contract, such Non-Assignable Contract shall not be included in the BAM
Contributed Assets, and the Liabilities under such Non-Assignable Contract shall
not be included in the BAM Assumed Liabilities, in each case until such time as
BAM is able to provide OpCo with the interest of BAM in such benefits or BAM
obtains the aforesaid consent or novation with respect to the Non-Assignable
Contract.

          2.3.7  Bulk Transfer Laws.  Bidder, Bidder Member and OpCo each hereby
                 ------------------                                             
waive compliance by BAM and the Transferring Partnerships with the provisions of
any and all Laws relating to bulk transfer in connection with the sale of the
BAM Contributed Assets.  BAM shall indemnify OpCo from and against any and all
Liabilities (including reasonable attorneys' fees) arising out of noncompliance
with such bulk transfer Laws.

          2.3.8  Certain Apportionments.  Notwithstanding any provision to the
                 ----------------------                                       
contrary in this Section 2.3 or elsewhere in this Agreement, at the Closing the
following items shall be apportioned between BAM and the Transferring
Partnerships, on the one hand, and OpCo, on the other hand, with such
adjustments to be made as of the Closing Date by the party that on a net basis
owes money to the other party under this Section 2.3.8 by wire transfer of
immediately available funds to such accounts as such other party shall specify
in writing: (a) rents and revenues under all Contracts included in the BAM
Contributed Assets; (b) Prepaid Expenses; (c) federal, state, local or foreign
Taxes (other than income taxes) payable with respect to the BAM Contributed
Assets; and (d) charges and payments under all Contracts included in the BAM
Contributed Assets.  Such apportionments shall be made pro rata on a per diem
basis as of the Closing Date so that all such rents, revenues, Taxes, charges
and payments attributable to the period prior to the Closing Date are for the
account of BAM; and all such rents, revenues, Taxes, charges and payments
attributable to the period from and after the Closing Date are for 

                                      -15-
<PAGE>
 
the account of OpCo. If any of the aforesaid apportionments cannot be calculated
accurately on the Closing Date, then the same shall be calculated and adjusted
once by BAM and OpCo after the Closing Date in accordance with the following
procedures. Within five business days after the last day of the third full
calendar month following the Closing Date, BAM and OpCo shall exchange their
respective post-Closing calculations of such apportionments. BAM and OpCo shall
in good faith agree upon the post-Closing apportionments on or before the last
day of the fourth full calendar month following the Closing Date. If at the end
of such period, BAM and OpCo cannot agree on the post-Closing apportionments,
BAM and OpCo shall submit to an independent accounting firm (the "Accounting 
                                                                  ----------
Firm") for review and resolution any and all matters which remain in dispute.
- ----
The Accounting Firm shall be Arthur Anderson, LLP or, if such firm is unable or
unwilling to act, such other nationally recognized independent public accounting
firm as shall be agreed upon by BAM and OpCo in writing. The Accounting Firm
shall be instructed to, within thirty (30) days after the submission of any
disputed matters, review and resolve all such disputed matters and to report its
resolution thereof to BAM and OpCo, and such report shall be final, binding and
conclusive on BAM and OpCo with respect to all such disputed matters. The fees
and expenses of the Accounting Firm incurred pursuant to this Section 2.3.8
shall be borne fifty percent (50%) by BAM and fifty percent (50%) by OpCo. No
other post-Closing apportionments shall be made by the parties. Either party
owing the other party a sum of money based on the agreed-upon post-Closing
apportionments shall pay said sum to the other party on or before the last day
of the fifth full calendar month following the Closing Date. If payment of any
such amount is not paid when due, interest shall accrue on the past due amount
at a rate equal to the Prime Rate plus two percent (2%) per annum from the due
date to the date of payment. The aforesaid post-Closing adjustment shall be the
only post-Closing adjustment of the items to be apportioned under this Section
2.3.8. The provisions of this Section 2.3 shall not affect the obligations of
BAM and OpCo under this Agreement with respect to the BAM Retained Liabilities
and the BAM Assumed Liabilities, respectively.

      2.4 Contribution of Bidder Contributed Cash.  Subject to the terms and
          ---------------------------------------                           
conditions of this Agreement, at the Closing, in exchange for the issuance by
OpCo to Bidder Member, of a 51.9 Percentage Interest in OpCo (the "Bidder OpCo
                                                                   -----------
Interest"), Bidder Member shall contribute to OpCo, and OpCo shall accept the
- --------                                                                     
contribution from Bidder Member of, the Bidder Contributed Cash.

      2.5 Global Lease Agreement.  At the Closing, OpCo and BAM (for itself and
          ----------------------                                               
on behalf of the Transferring Partnerships) shall execute and deliver the Global
Lease Agreement in the form attached hereto as 1 EXHIBIT 2.5 (the "Global
                                                                   ------
Lease") pursuant to which OpCo shall lease to BAM and the Transferring
Partnerships space on certain communications towers.

      2.6 Build-to-Suit Agreement.  At the Closing, OpCo, HoldCo Sub and BAM
          -----------------------                                           
(for itself and on behalf of the Transferring Partnerships) shall execute and
deliver the Build-to-Suit Agreement in the form attached hereto as 1 EXHIBIT 2.6
(the "Build-to-Suit Agreement") pursuant to which BAM and the Transferring
      -----------------------                                             
Partnerships shall offer to OpCo and HoldCo Sub from time to time the right to
build tower structures on the terms and conditions described therein.

      2.7 Bidder Services Agreement.  At the Closing, Bidder, HoldCo Sub and
          -------------------------                                         
OpCo shall execute and deliver a Services Agreement, in form and substance
reasonably acceptable to BAM and Bidder and consistent with the terms set forth
in the letter agreement between BAM and Bidder attached hereto as 1 EXHIBIT 2.7,
pursuant to which Bidder shall offer to OpCo and HoldCo Sub certain services
with respect to the tower structures owned by OpCo and HoldCo Sub on the terms
and conditions described therein (the "Bidder Services Agreement").
                                       -------------------------   

                                      -16-
<PAGE>
 
      2.8 Transitional Services Agreement.  At the Closing, if BAM and Bidder
          -------------------------------                                    
determine that such an agreement should be entered into, BAM, OpCo and HoldCo
Sub shall execute and deliver a the Transitional Services Agreement, in form and
substance reasonably acceptable to BAM and Bidder and consistent with the terms
set forth in the letter agreement between BAM and Bidder attached hereto as
EXHIBIT 2.7, pursuant to which BAM shall offer to OpCo and HoldCo Sub certain
services with respect to the transition of the BAM Contributed Assets to OpCo on
the terms and conditions described therein (the "Transitional Services
                                                 ---------------------
Agreement").


                                   ARTICLE 3

           FORMATION OF HOLDCO SUB AND HOLDCO, ANTICIPATED FINANCING

      3.1 Purpose of HoldCo and HoldCo Sub.  The purpose of  HoldCo Sub is to
          --------------------------------                                   
own 99.999% of the Percentage Interests in OpCo, to perform its duties under the
Management Agreement, to issue the Anticipated Financing (hereinafter defined),
to make the distributions that it is obligated to make under this Agreement, and
to conduct all business activities related thereto.  The purpose of HoldCo is to
own 100% of the Percentage Interests in HoldCo Sub and the Bidder Contributed
Shares.

      3.2 Formation of HoldCo Sub.   Subject to the terms and conditions of this
          -----------------------                                               
Agreement and in reliance upon the representations and warranties and covenants
contained herein, at the Closing (a) BAM, the Transferring Partnerships, and
Bidder Member shall form HoldCo Sub by filing an appropriate certificate of
formation with the Secretary of State of the State of Delaware, and (b) HoldCo
shall execute and deliver the HoldCo Sub Operating Agreement in the form
attached hereto as 1 EXHIBIT 3.2 (the "HoldCo Sub Operating Agreement").  BAM,
                                       ------------------------------         
the Transferring Partnerships, and Bidder Member shall contribute to HoldCo Sub
the BAM OpCo Interest and the Bidder OpCo Interest, respectively, free and clear
of all Encumbrances in exchange for the issuance by HoldCo Sub to BAM, of a 48.1
Percentage Interest in HoldCo Sub (the "BAM HoldCo Sub Interest"), which BAM
                                        -----------------------             
HoldCo Sub Interest shall be apportioned between BAM and the Transferring
Partnerships and among the Transferring Partnerships as set forth on EXHIBIT A-
1, and the issuance to Bidder Member of a 51.9 Percentage Interest in HoldCo Sub
(the "Bidder HoldCo Sub Interest").
      --------------------------   

      3.3 Management Agreement.  At the Closing, OpCo and HoldCo Sub shall
          --------------------                                            
execute and deliver a Management Agreement, in form and substance reasonably
acceptable to BAM and Bidder and consistent with the terms set forth in the
letter agreement between BAM and Bidder attached hereto as EXHIBIT 2.7, pursuant
to which HoldCo Sub shall manage and lease OpCo's assets (the "Management
                                                               ----------
Agreement").
- ---------   

      3.4 Contributed Cash Distribution.  At the Closing, immediately prior to
          -----------------------------                                       
the formation of HoldCo pursuant to Section 3.5 hereof, OpCo shall cause to be
made to HoldCo Sub a cash distribution of $200,000,000, all of which shall be
used to make a cash distribution to HoldCo after Closing in the amount of
$200,000,000, who will then immediately distribute such cash to BAM and the
Transferring Partnerships (such distribution by HoldCo to BAM and the
Transferring Partnerships is referred to herein as the "Contributed Cash
                                                        ----------------
Distribution", and, together with the Financing Distribution, is referred to
- ------------                                                                
herein as the "BAM Capital Distribution"), which Contributed Cash Distribution
               ------------------------                                       
shall be apportioned 

                                      -17-
<PAGE>
 
between BAM and the Transferring Partnerships and among the Transferring
Partnerships as set forth on EXHIBIT A-1.

      3.5 Formation of HoldCo.  Subject to the terms and conditions of this
          -------------------                                              
Agreement and in reliance upon the representations and warranties and covenants
contained herein, at the Closing, (i) BAM, the Transferring Partnerships, and
Bidder Member shall form HoldCo by filing an appropriate certificate of
formation with the Secretary of State of the State of Delaware, and (ii) BAM and
Bidder Member shall execute and deliver the HoldCo Operating Agreement in the
form attached hereto as 1 EXHIBIT 3.5 (the "HoldCo Operating Agreement").  BAM
                                            --------------------------        
and the Transferring Partnerships shall contribute to HoldCo the BAM HoldCo Sub
Interest, free and clear of all Encumbrances, in exchange for the issuance by
HoldCo to BAM of a 37.7 Percentage Interest in HoldCo (the "BAM HoldCo
                                                            ----------
Interest"), which BAM HoldCo Interest shall be apportioned between BAM and the
Transferring Partnerships and among the Transferring Partnerships as set forth
on EXHIBIT A-1.  Bidder Member shall contribute to HoldCo (a) the Bidder HoldCo
Sub Interest, free and clear of all Encumbrances, and (b) 15,597,783 shares of
validly issued, fully-paid and non-assessable shares of Common Stock of Bidder,
subject to appropriate adjustment for stock splits, dividends, reclassifications
and similar changes in the capital stock of Bidder occurring after the date of
this Agreement but prior to Closing (the "Bidder Contributed Shares"), free and
                                          -------------------------            
clear of all Encumbrances, in exchange for the issuance by HoldCo to Bidder
Member of a 62.3 Percentage Interest in HoldCo (the "Bidder HoldCo Interest").
                                                     ----------------------    
The aforesaid number of Bidder Contributed Shares is equal to the quotient of
(i) $197,000,000 divided by (ii) $12.63 per share.  The provisions of this
Section 3.5 are subject to the provisions of Section 3.8.

          Bidder shall pay all expenses, taxes and other charges payable in
connection with the preparation, issuance and delivery of share certificates
evidencing the Bidder Contributed Shares. Bidder shall at its expense promptly
file all necessary listing applications and other filings necessary to cause the
Bidder Contributed Shares to be listed on The NASDAQ Stock Market.  Bidder shall
at its expense make all required state "Blue Sky" filings in connection with the
issuance of the Bidder Contributed Shares and the contribution thereof to HoldCo
in connection with the provisions of this Agreement.  Each certificate for the
Bidder Contributed Shares or successor securities shall bear the following
legend:

     THESE SECURITIES (I) HAVE BEEN ACQUIRED FOR INVESTMENT PURPOSES AND NOT
     WITH A VIEW TO OR FOR RESALE IN CONNECTION WITH THE DISTRIBUTION HEREOF,
     AND (II) HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS
     AMENDED (THE "SECURITIES ACT"), OR THE SECURITIES LAWS OF ANY STATE AND MAY
     NOT BE OFFERED, SOLD, TRANSFERRED, PLEDGED, HYPOTHECATED OR OTHERWISE
     DISPOSED OF EXCEPT PURSUANT TO (A) AN EFFECTIVE REGISTRATION STATEMENT
     UNDER THE SECURITIES ACT, (B) TO THE EXTENT APPLICABLE, RULE 144 OR ANY
     OTHER EXEMPTION FROM REGISTRATION UNDER THE SECURITIES ACT (OR ANY SIMILAR
     RULE UNDER THE SECURITIES ACT RELATING TO THE DISPOSITION OF SECURITIES),
     OR (C) AN OPINION OF COUNSEL, IF SUCH OPINION SHALL BE REASONABLY
     SATISFACTORY TO COUNSEL TO THE ISSUER, THAT REGISTRATION UNDER THE
     SECURITIES ACT IS NOT REQUIRED.

                                      -18-
<PAGE>
 
Any certificate issued at any time in exchange or substitution for any
certificate bearing such legend (except a new certificate issued upon completion
of a public distribution pursuant to a registration statement under the
Securities Act) shall also bear such legend unless, in the opinion of counsel
selected by the holder of such certificate and reasonably acceptable to Bidder,
the securities represented thereby need no longer be subject to restrictions on
resale under the Securities Act.

      3.6 Financing.  Bidder has received a letter, dated October 8, 1998 (the
          ---------                                                           
"Commitment Letter"), a true and complete copy of which is contained in 1
- ------------------                                                       
EXHIBIT 3.6 from Key Corporate Capital Inc. (the "Lender") for the financing by
                                                  ------                       
HoldCo Sub on the terms and subject to the conditions described therein (the
"Anticipated Financing") of an amount equal to not less than One Hundred Eighty
- ----------------------                                                         
Million Dollars ($180,000,000.00) (the "Closing Financing Amount"), except as
                                        ------------------------             
adjusted pursuant to its terms and conditions.  Bidder shall use its reasonable
best efforts to consummate the Anticipated Financing not later than the Closing
hereunder, after the formation of OpCo, HoldCo Sub and HoldCo.  The proceeds of
the Anticipated Financing, as appropriate, shall be used first, to make a
distribution in cash to HoldCo immediately after Closing, who will then
immediately distribute such cash to BAM and the Transferring Partnerships, in
the amount of $180,000,000 (the "Financing Distribution"), which Financing
                                 ----------------------                   
Distribution shall be apportioned between BAM and the Transferring Partnerships
and among the Transferring Partnerships as set forth on EXHIBIT A-1; and the
balance of such proceeds shall be used for general business purposes of HoldCo
Sub and OpCo.  The provisions of this Section 3.6 are subject to the provisions
of Section 3.8.
 
      3.7 BAM-Sub Guarantee.  At the closing of the Anticipated Financing, BAM-
          -----------------                                                   
Sub shall execute and deliver its Guarantee in the form attached as 1 EXHIBIT
3.7 hereto (the "BAM-Sub Guarantee").
                 -----------------   

      3.8 Adjustments Based Upon Number of Included Tower Structures.
          ---------------------------------------------------------- 

               (a) As used in this Agreement, the term "Included Tower
                                                        --------------
          Structures" shall mean all Tower Structures constructed as of the 
          ----------                                                        
          Closing Date and granted, contributed, conveyed, assigned, transferred
          and delivered by BAM and the Transferring Partnerships to OpCo at the
          Closing, and all Tower Structures that meet any of the following
          criteria (which for purposes of this Section 3.8 shall be deemed to
          have been granted, contributed, conveyed, assigned, transferred and
          delivered by BAM and the Transferring Partnerships to OpCo at the
          Closing): (i) any Tower Structure that is planned, but not yet
          constructed, and for which a Tower Site has been secured and all
          Governmental Permits that are required for the construction thereof
          have been secured, (ii) any Tower Structure for which BAM has not
          secured a required consent or approval to the assignment of the
          related Site Lease to OpCo at the Closing, but for which BAM or a
          Transferring Partnership is nonetheless able to deliver to OpCo, from
          and after the Closing, the interest of BAM or the applicable
          Transferring Partnership in the economic benefits of the Tower
          Structure, and (iii) any Tower Structure located on a Tower Site that
          is the subject of an Environmental Condition that is being remediated
          by BAM pursuant to the provisions of Section 6.1.7 and for which BAM
          or a Transferring Partnership delivers to OpCo, from and after the
          Closing, the interest of BAM or the applicable Transferring
          Partnership in the economic benefits of the Tower Structure.

                                     -19-
<PAGE>
 
               (b) Notwithstanding any other provision of this Agreement to the
     contrary, if the number of Included Tower Structures exceeds 1,427, the
     consideration to be paid, distributed  and issued to BAM and the
     Transferring Partnerships under this Agreement shall be increased by an
     amount (the "Additional Consideration") equal to the product determined by
                  ------------------------                                     
     multiplying (i) $320,000 by (ii) the number of Included Tower Structures in
     excess of 1,427.  Such Additional Consideration shall be provided by
     increasing the BAM HoldCo Interest provided, however, that such adjusted
     interest must be less than 50%.  If the amount of the Additional
     Consideration is such that the BAM HoldCo Interest, as adjusted pursuant to
     this Section 3.8(b), would be greater than or equal to 50%, the BAM HoldCo
     Interest shall be adjusted to 49.9% and Bidder and BAM shall agree upon the
     form of additional consideration to be provided by Bidder, which may
     include an increase of the Bidder Contributed Cash and an increase in the
     number of Bidder Contributed Shares.  The increased BAM HoldCo Interest
     shall be equal to the quotient of (A) an amount equal to (1) $650,000,000
     plus (2) the Additional Consideration less (3) the amount of the BAM
     Capital Distribution, divided by (B) an amount equal to (1) $650,000,000
     plus (2) the Additional Consideration, plus (3) $250,000,000, being the
     amount of the Bidder Contributed Cash, plus (4) $197,000,000, less (5) the
     amount of the BAM Capital Distribution.

               (c) Notwithstanding any other provision of this Agreement to the
     contrary, if the number of Included Tower Structures is less than 1,427,
     the consideration to be paid, distributed and issued to BAM and the
     Transferring Partnerships under this Agreement shall be decreased by an
     amount (the "Amount of Decrease in Consideration") equal to the product
                  -----------------------------------                       
     determined by multiplying (i) $320,000 by (ii) the difference between 1,427
     and the number of Included Tower Structures.  Such decrease in
     consideration shall be provided in accordance with the following:

               (i) If as a result of the number of Included Tower Structures
     being less than 1,427, the Lender reduces the amount of the Closing
     Financing Amount, then the amount of the Financing Distribution shall be
     reduced by an amount equal to the amount by which the Closing Financing
     Amount was reduced; and

               (ii) The number of Bidder Contributed Shares shall be decreased
     from 15,597,783 shares of Bidder Common Stock to such number of shares of
     Bidder Common Stock that is equal to the quotient of (A) the Adjusted
     Aggregate Share Value, divided by (B) $12.63 per share.  As used herein,
     the term "Adjusted Aggregate Share Value" means the lesser of :
               ------------------------------                       

               (x) the quotient of (1) the difference between (aa) the product
     determined by multiplying (i) 90% by (ii) an amount equal to $650,000,000
     less the Amount of Decrease in Consideration, less the amount of the BAM
     Capital Distribution, and (bb) the product determined by multiplying 10% by
     $250,000,000, being the amount of the Bidder Contributed Cash, divided by
     (2) 110%; or

               (y) the difference between (1) the product determined by
     multiplying (aa) 90% by (bb) an amount equal to $650,000,000 less the
     Amount of Decrease in Consideration, and (2) the amount of the BAM Capital
     Distribution; and

                                      -20-
<PAGE>
 
               (iii) The BAM HoldCo Interest shall be decreased from a 37.7 
     Percentage Interest to such lower Percentage Interest that is equal to the 
     quotient of (A) the difference between (1) $650,000,000 less the Amount of 
     Decrease in Consideration and (2) the amount of the BAM Capital 
     Distribution, divided by (B) an amount equal to (1) $650,000,000 less the
     Amount of Decrease in Consideration, plus (2) $250,000,000, being the
     amount of the Bidder Contributed Cash, plus (3) the Adjusted Aggregate
     Share Value, less (4) the amount of the BAM Capital Distribution.

               (d) If any Tower Structure does not qualify as an Included Tower
     Structure at Closing because at the Closing BAM or a Transferring
     Partnership is unable to deliver to OpCo the interest of BAM or the
     applicable Transferring Partnership in the economic benefits of a Tower
     Structure (i) for which BAM has not secured a required consent or approval
     to the assignment of the related Site Lease to OpCo, or (ii) which is
     located on a Tower Site that is the subject of an Environmental Condition
     that is being remediated by BAM pursuant to the provisions of Section
     6.1.7, and, as a result, the consideration paid, distributed and issued to
     BAM and the Transferring Partnerships at the Closing is decreased pursuant
     to Section 3.8(c), and if BAM or the applicable Transferring Partnership is
     subsequently able to deliver to OpCo the interest of BAM or the applicable
     Transferring Partnership in the economic benefits of the Tower Structure,
     then, effective as of the date that such economic benefits begin to be
     delivered to OpCo, the decrease in consideration that was made pursuant to
     Section 3.8(c) with respect to the Tower Structure shall be reversed and
     shall be recalculated, counting the Tower Structure as an Included Tower
     Structure.

3.9  Adjustments Based Upon Revenue Run Rate of Included Towers.
     ---------------------------------------------------------- 

               (a) For purposes of this Section 3.9, the average annual
     aggregate rents receivable from third party tenants for each Tower
     Structure shall be $11,186 per year (determined by dividing (i) $15,962,000
     by (ii) 1,427 Tower Structures).

               (b) At the Closing, the annualized aggregate rents receivable
     from third party tenants for the Included Tower Structures (the "Actual
                                                                      ------
     Third Party Rents for the Included Towers") shall be determined by the
     -----------------------------------------                             
     parties and then compared with the product determined by multiplying (i)
     the number of Included Tower Structures by (ii) $11,186 (the "Target Third
                                                                   ------------
     Party Rents for the Included Towers").
     -----------------------------------   

               (c) If at the Closing the Actual Third Party Rents for the
     Included Towers equal or exceed the Target Third Party Rents for the
     Included Towers, there shall be no amounts owing by BAM to OpCo, or by OpCo
     to BAM, on account of the amount of rents receivable from third party
     tenants for the Included Tower Structures.

               (d) If at the Closing the Actual Third Party Rents for the
     Included Towers are less than the Target Third Party Rents for the Included
     Towers, then the following provisions of this subsection (d) shall apply
     from and after the Closing Date until such time that the Actual Third Party
     Rents for the Included Towers equal or exceed the Target Third Party Rents
     for the Included Towers.  On the first day of each calendar month, OpCo
     shall calculate the difference between the Actual Third Party Rents for the

                                      -21-
<PAGE>
 
     Included Towers (expressed in a monthly amount, determined by dividing the
     annual rents for each Included Tower Structure by 12) and the Target Third
     Party Rents for the Included Towers (expressed in a monthly amount,
     determined by multiplying (A) $932.17 by (B) the number of Included Tower
     Structures) as of such date. On or before the tenth day of such month, OpCo
     shall deliver to BAM an invoice for the difference so calculated (the
     "Monthly Third Party Rent Shortfall"), which shall be accompanied by
      ----------------------------------
     reasonable evidence supporting OpCo's calculation of the Monthly Third
     Party Rent Shortfall. BAM shall pay each such invoice within 30 days after
     BAM's receipt of the invoice.

               (e) Amounts payable by BAM under Section 3.10 below shall be
     counted as rents receivable from third party tenants for the Included Tower
     Structures for purposes of determining the Actual Third Party Rents for the
     Included Towers under this Section 3.9.

3.10 Adjustment Based Upon Revenues Receivable under Certain Third Party
     -------------------------------------------------------------------
Leases.  Set forth on 3 SCHEDULE 3.10 is a description of certain third party
- ------                                                                       
leases covering the Tower Structures which were entered into by BAM or a
Transferring Partnership (as lessor) pursuant to a swap or other arrangement
(collectively, the "Swap Lease Agreements," and each, individually, a "Swap
                    ---------------------                              ----
Lease Agreement").  With respect to each Swap Lease Agreement covering any of
- ---------------                                                              
the Included Tower Structures, on or before the tenth day of each calendar month
from and after the Closing Date until the time specified in the following
sentence, BAM or the applicable Transferring Partnership shall pay to OpCo an
amount equal to the difference, if any, between (a) the monthly rent that OpCo
would have received under the Swap Lease Agreement if the rents payable by the
third party lessee thereunder were set at the rental rates payable to OpCo under
the Global Lease Agreement, and (b) the monthly rent receivable by OpCo under
the Swap Lease Agreement.  The payment obligation of BAM or the applicable
Transferring Partnership under the preceding sentence with respect to a
particular Swap Lease Agreement shall terminate on the date that the third party
lessee no longer has lease rights under the Swap Lease Agreement with respect to
the subject Included Tower Structure.


                                   ARTICLE 4

                                    CLOSING

      4.1 Closing.  The closing (the "Closing") of the transactions contemplated
          -------                     -------                                   
by this Agreement shall take place at 10:00 A.M., local time, on March 31, 1999,
or, if later, the first business day following the satisfaction or waiver of the
conditions precedent set forth in Article 4 hereof.  The Closing shall take
place at the offices of Morgan, Lewis & Bockius LLP, 1701 Market Street,
Philadelphia, Pennsylvania 19103 or at such other location as the parties shall
agree.  The date of the Closing is sometimes herein referred to as the "Closing
                                                                        -------
Date."
- ----- 

          4.2  Items to be Delivered and Actions to be Taken at Closing.  At the
               --------------------------------------------------------         
Closing and subject to the terms and conditions herein contained:

          (a) BAM, the Transferring Partnerships and Bidder Member shall form
OpCo by executing and delivering the OpCo Operating Agreement;

                                      -22-
<PAGE>
 
          (b) BAM and the Transferring Partnerships shall deliver to OpCo such
deeds, assignments, bills of sale and other good and sufficient instruments and
documents of conveyance and transfer as shall be necessary and effective (in the
reasonable opinion of counsel to Bidder Member, consistent with the provisions
of this Agreement) to transfer and assign to, and vest in, OpCo all of the
right, title and interest of BAM and the Transferring Partnerships in and to the
BAM Contributed Assets to the extent and as provided in this Agreement, and OpCo
shall deliver to BAM and the Transferring Partnerships an undertaking whereby
OpCo will assume and agree to pay, discharge or perform, as appropriate, the BAM
Assumed Liabilities to the extent and as provided in this Agreement;

          (c) Bidder Member shall deliver to OpCo the Bidder Contributed Cash,
as provided in this Agreement;

          (d) OpCo, BAM and each of the Transferring Partnership shall execute
and deliver the Global Lease;

          (e) OpCo and BAM (for itself and on behalf of the Transferring
Partnerships) shall execute and deliver the Build-to-Suit Agreement;

          (f) BAM, the Transferring Partnerships and Bidder Member shall form
HoldCo Sub by executing and delivering the HoldCo Sub Operating Agreement and
contributing to HoldCo Sub the BAM OpCo Interest and the Bidder OpCo Interest;

          (g) HoldCo Sub and OpCo shall execute and deliver the Management
     Agreement;

          (h) HoldCo Sub shall deliver to HoldCo cash in an amount equal to the
Contributed Cash Distribution, and HoldCo shall then immediately deliver to BAM
and the Transferring Partnerships the Contributed Cash Distribution by wire
transfer of immediately available funds to such accounts as BAM shall specify in
writing;

          (i)  BAM, the Transferring Partnerships and Bidder Member shall form
HoldCo by executing and delivering the HoldCo Operating Agreement and
contributing to HoldCo all of their respective interests in HoldCo Sub and by
Bidder Member contributing the Bidder Contributed Shares to HoldCo.;

          (j) HoldCo Sub, OpCo, BAM, BAM Sub, the Lender and the financial
institutions referred to below shall consummate the Anticipated Financing by
executing and delivering the following loan documents (the "Financing
                                                            ---------
Documents"), each in the form of the most recent draft thereof that was provided
by the Lender to BAM and Bidder as of the date of this Agreement, with such
changes thereto as BAM and Bidder may mutually approve, and by performing the
respective obligations to be performed by them at the closing of the Anticipated
Financing pursuant to the provisions of the Commitment Letter and the Financing
Documents:

               (i) Loan Agreement among HoldCo Sub, the Lender, as agent, and
the financial institutions listed therein;

                                      -23-
<PAGE>
 
              (ii) Promissory Note issued by HoldCo Sub to the Lender and such
other financial institutions party to the Loan Agreement;

              (iii) Security Agreement between HoldCo Sub and the Lender, as 
agent;

               (iv) Pledge Agreement between HoldCo and the Lender, as agent;

               (v) Tower Subsidiary Guarantee between OpCo and the Lender, as
agent;

               (vi) Tower Subsidiary Security Agreement between OpCo and the
Lender, as agent;

               (vii) Tower Subsidiary Pledge Agreement among HoldCo Sub, BAM and
the Lender, as agent;

               (viii) BAM-Sub Guarantee between BAM Sub and the Lender, as
agent;

          (ix) Agreement between the Lender, as agent, and BAM pursuant to which
BAM is granted the right to purchase the position of the Lender and such
financial institutions under all of the Financing Documents and related
documents and instruments upon an event of default by HoldCo Sub, the right of
first offer to purchase any collateral under any foreclosure action, and certain
rights of notice; and

          (x) Subordination, Non-Disturbance and Attornment Agreement between
BAM (for itself and on behalf of the Transferring Partnerships) and the Lender;

          (k) HoldCo Sub shall deliver to HoldCo cash in an amount equal to the
Financing Distribution, and HoldCo shall then immediately deliver to BAM and the
Transferring Partnerships the Financing Distribution by wire transfer of
immediately available funds to such accounts as BAM shall specify in writing;

          (l) Bidder, HoldCo Sub and OpCo shall execute and deliver the Bidder
Services Agreement;

          (m) If BAM and Bidder determine that such an agreement should be
entered into, BAM, HoldCo Sub and OpCo shall execute and deliver the
Transitional Service Agreement; and

          (n)  At or prior to the Closing, the parties hereto shall also deliver
to each other the agreements, opinions, certificates and other documents and
instruments referred to in Article 7 hereof.

      4.3 Further Assurances.  Each of BAM, the Transferring Partnerships,
          ------------------                                              
Bidder and Bidder Member, from time to time after the Closing, at OpCo's
request, will execute, acknowledge and deliver to OpCo such other instruments of
conveyance and transfer and will take such other actions and execute and deliver
such other documents, certifications and further assurances as OpCo may
reasonably require in order to vest more effectively in OpCo or to put OpCo more
fully in possession of, any of the BAM Contributed Assets or the Bidder
Contributed Cash, or to better enable OpCo to complete, perform or discharge any
of the liabilities or obligations assumed by OpCo at the Closing pursuant
hereto, or to vest 

                                      -24-
<PAGE>
 
more effectively in HoldCo or to put HoldCo more fully in possession of, the
Bidder Contributed Shares. Each of the parties hereto will cooperate with the
other and execute and deliver to the other parties hereto such other instruments
and documents and take such other actions as may be reasonably requested from
time to time by any other party hereto as necessary to carry out, evidence and
confirm the intended purposes of this Agreement.


                                   ARTICLE 5

                         REPRESENTATIONS AND WARRANTIES

      5.1 Representations and Warranties of BAM.  Except as disclosed to OpCo in
          -------------------------------------                                 
the SCHEDULES to this Agreement (with each disclosure made in the Schedule in
response to any Section of these representations and warranties being deemed to
be disclosed in response to, and to qualify, each other Section of these
representations and warranties), BAM hereby represents and warrants to OpCo as
follows:

          5.1.1  Corporate.  BAM is a general partnership, duly organized and
                 ---------                                                   
validly existing under the laws of the State of Delaware.  BAM is qualified to
do business in any jurisdiction where the ownership, use or occupancy of the BAM
Contributed Assets would require it to be so qualified, except where the failure
so to qualify would not have a BAM Material Adverse Effect.  BAM has the
requisite corporate power and authority to own, lease, use and occupy the BAM
Contributed Assets as they are now being owned, leased, used and occupied.

          5.1.2  Authorization.  BAM has the requisite corporate power and
                 -------------                                            
authority to execute and deliver the Transaction Documents to which it is a
party and to perform the transactions performed or to be performed by it
thereunder.  Such execution, delivery and performance by BAM have been duly
authorized by all necessary corporate action.  Each Transaction Document
executed and delivered by BAM has been duly executed and delivered by BAM and
constitutes a valid and binding obligation of BAM, enforceable against BAM in
accordance with its terms.

          5.1.3  Consents and Approvals.  Except for compliance with (w) the HSR
                 ----------------------                                         
Act, (x) to the extent required, notice to and the consent and approval of the
Connecticut Department of Environmental Protection ("CTDEP") under the
                                                     -----            
Connecticut Transfer Act ("CTA"), (y) to the extent required, notice to and the
                           ---                                                 
consent and approval of the New Jersey Department of Environmental Protection
("NJDEP") under the Industrial Site Recovery Act ("ISRA") and (z) the consents
- -------                                            ----                       
specified in 3 SCHEDULE 5.1.3, neither the execution and delivery by BAM of the
Transaction Documents to which it is a party, nor the performance of the
Transactions performed or to be performed by BAM, will (i) require any filing,
consent or approval or constitute a Default under (A) any Law or Court Order to
which BAM or any of the BAM Contributed Assets is subject, (B) the Charter
Documents or bylaws of BAM or (C) any Contract, Governmental Permit or other
document to which BAM is a party or by which any of the BAM Contributed Assets
is bound, except with respect to clauses (A) and (C), such Defaults that,
individually or in the aggregate, would not have a BAM Material Adverse Effect,
or (ii) result in the creation or imposition of any Encumbrance upon any of the
BAM Contributed Assets, other than Permitted Encumbrances.

                                      -25-
<PAGE>
 
          5.1.4  Title to and Condition of Assets and Related Matters.  To BAM's
                 ----------------------------------------------------           
knowledge, BAM owns and will transfer to OpCo at the Closing good and marketable
title to, or, with respect to leased assets, a valid leasehold interest in, all
of the BAM Contributed Assets, free from any Encumbrances except Permitted
Encumbrances. To BAM's knowledge, the use of the BAM Contributed Assets is not
subject to any Encumbrances, other than Permitted Encumbrances, and such use
does not materially encroach on the property or rights of any other Person.  All
of the BAM Contributed Assets which are personal property or fixtures are in
good operating condition and repair, subject to normal wear and maintenance, are
useable to support the antennae structures of BAM and the other tenants on the
existing Tower Structures as of the date hereof, except for such defects as
would not cost more than $25,000 to correct with respect to each such Tower
Structure or more than $5,000,000 for all such Tower Structures.  To BAM's
knowledge, except as disclosed in 3 SCHEDULE 5.1.4 all of the transmitting
towers, ground radials, guy anchors, transmitting buildings and related
improvements, if any, located on the real property owned or leased by BAM are
located entirely on such real property.

          5.1.5  Real Property.
                 ------------- 

          (a) Zoning.  To BAM's knowledge, BAM's ownership, lease or use of the
              ------                                                           
real property included in the BAM Contributed Assets or subject to Site Leases
is in compliance with all applicable zoning and other land use requirements
where the failure to so comply would materially limit BAM's ability to use such
real property in the ordinary course of business.

          (b) Utility Services.  The water, electric, gas and sewer utility
              ----------------                                             
services and the septic tank and storm drainage facilities currently available
to the Tower Sites are adequate for the present use of such Tower Sites by BAM,
are not being appropriated by BAM but rather are being supplied to BAM by
utility companies or municipalities pursuant to valid and enforceable contracts
or tariffs, and there is no condition which will result in the termination of
the present access from the Tower Sites to such utility services and other
facilities.

          (c)  Access.  To BAM's knowledge, BAM has obtained all Governmental
               ------                                                        
Permits (where required), easements and rights-of-way which are reasonably
necessary to provide vehicular and pedestrian ingress and egress to and from the
Tower Sites for the purposes used by BAM in the ordinary course.  To BAM's
knowledge, no action is pending or threatened which would have the effect of
terminating or limiting such access.

          (d) Eminent Domain.  BAM has received no written notice that any
              --------------                                              
governmental body having the power of eminent domain over any of the real
property included in the BAM Contributed Assets has commenced or intends to
exercise the power of eminent domain or a similar power with respect to all or
any part of such real property.

          (e) Public Improvements.  To BAM's knowledge, no  work for municipal
              -------------------                                             
improvements has been commenced on or in connection with the 'Owned Sites'
included in the BAM Contributed Assets.  BAM has received no written notice that
any assessment for public improvements has been made against any such real
property which remains unpaid.

                                      -26-
<PAGE>
 
          5.1.6  Legal Proceedings and Compliance with Law.  Except as set forth
                 -----------------------------------------                      
in 3 SCHEDULE 5.1.6, there is no Litigation that is pending or, to BAM's
knowledge, threatened against BAM with respect to, or involving, any of the BAM
Contributed Assets.  To BAM's knowledge, there has been no Default under any
Laws applicable to the ownership, occupancy or use of the BAM Contributed
Assets, including Environmental Laws, except for such Defaults that would not
have a BAM Material Adverse Effect, individually or in the aggregate.  Except as
set forth in SCHEDULE 5.1.6, BAM has not received any notices from any
Governmental Authority regarding any alleged Defaults relating to the ownership,
use or occupancy of the BAM Contributed Assets under any applicable Laws,
including Environmental Laws.  Except as set forth in SCHEDULE 5.1.6,  BAM, with
respect to the BAM Contributed Assets, is not presently subject to the
provisions of any Court Order and there has been no Default with respect to any
Court Order applicable to BAM with respect to the BAM Contributed Assets, except
for such Defaults that would not have a BAM Material Adverse Effect,
individually or in the aggregate.

          5.1.7  Governmental Permits.  Except as set forth on 3 SCHEDULE 5.1.7,
                 --------------------                                           
BAM has obtained all Governmental Permits that are required for the ownership,
use or occupancy of the BAM Contributed Assets as now being conducted, all of
which are in full force and effect, except where the failure to obtain any such
Governmental Permit or of any such Governmental Permit to be in full force and
effect would not have a BAM Material Adverse Effect, individually or in the
aggregate.  BAM has complied with all such Governmental Permits, except where
the failure so to comply would not have a BAM Material Adverse Effect,
individually or in the aggregate.

          5.1.8  Contracts.  3 SCHEDULE 5.1.8 identifies all Contracts of the
                 ---------                                                   
following types to which BAM is a party, or by which it is bound, with respect
to the BAM Contributed Assets (other than any Contract that is terminable by a
party on not more than sixty (60) days' notice without any Liability or any
Contract under which the obligation of a party (fulfilled and to be fulfilled)
involves an amount of less than $50,000 (a "Minor Contract")):
                                            --------------    

          (a) Contracts which are Site Leases, disclosing for each the location
of the related Tower Site, the identity of the lessor, the expiration date of
the initial term under the lease, and the amount of the rental paid to the
lessor by BAM thereunder for the month ended not more than forty-five (45) days
prior to the date of this Agreement;

          (b) Contracts which are Tower Leases, disclosing for each the location
of the related Tower Site, the identity of the lessee, the expiration date of
the initial term under the lease, and the amount of the rental paid by the
lessee to BAM thereunder for the month ended not more than forty-five (45) days
prior to the date of this Agreement;

          (c) Contracts which are Tower Equipment Leases, disclosing for each
the location of the related Tower Site, the type of equipment leased, the
identity of the lessor, the expiration date of the initial term under the lease
and the amount of the rental paid to the lessor by BAM thereunder for the month
ended not more than forty-five (45) days prior to the date of this Agreement;

          (d) Contracts which are Tower Service Contracts, disclosing for each
the location of the related Tower Site, the identity of the service provider,
the type of service provided, the expiration date of the initial term under the
Contract and the amount of the fees paid by BAM to the 

                                      -27-
<PAGE>
 
service provider thereunder for the month ended not more than forty-five (45)
days prior to the date of this Agreement;

          (e) Contracts under which any Encumbrances, other than Permitted
Encumbrances, exist with respect to the BAM Contributed Assets; and

          (f) Contracts (other than Minor Contracts and those described in any
of  (a) through (e) above) (i)  which relate to the Tower Structures or Tower
Sites which were entered into after December 31, 1997 and which were not made in
the ordinary course of the business of BAM or (ii) which were made in the
ordinary course of business and involve remaining payments under any such
Contract of more than $500,000.

     The Contracts listed in SCHEDULE 5.1.8 are referred to herein as the "BAM
                                                                           ---
Contracts."  Except as identified in SCHEDULE 5.1.8,  BAM is not in Default
- ----------                                                                 
under any BAM Contract in any material respect. BAM has not received any written
communication from, or given any written communication to, any other party
indicating that BAM or such other party, as the case may be, is in Default under
any BAM Contract.  To BAM's knowledge, (i) except as identified in SCHEDULE
5.1.8, none of the other parties to any such BAM Contract is in Default
thereunder in any material respect and (ii) each such BAM Contract is in full
force and effect and is enforceable against the other parties thereto in
accordance with its terms, except to the extent that such enforcement may be
limited by applicable bankruptcy, reorganization, insolvency and other Laws of
general application affecting enforcement of creditors' rights generally.

          5.1.9  Employees and Employee Relations.  3 SCHEDULE 5.1.9 lists all
                 --------------------------------                             
employees of BAM who may be hired by OpCo and HoldCo at or immediately after
consummation of the Closing (each, an "Identified Employee") and their dates of
                                       -------------------                     
hire, present positions, rates of compensation (including cash and non-cash
compensation) and accrued vacation (such Schedule being subject to change
between the date hereof and the Closing Date as a result of changes in the
ordinary course of the business).  BAM is not a party to, involved in, or, to
BAM's knowledge, threatened by, any labor dispute or unfair labor practice
charge related to such Identified Employees.  BAM is not a party to or currently
negotiating any collective bargaining agreement related to such Identified
Employees.

          5.1.10  Employee Benefit Plans.
                  ---------------------- 

          (a) 3 SCHEDULE 5.1.10 lists each Benefit Plan sponsored or maintained
by BAM under which BAM is or may be obligated to Identified Employees or their
respective beneficiaries (the "Covered Persons").
                               ---------------   

          (b) All such Benefit Plans conform (and at all times have conformed)
in all material respects to, and are being administered and operated (and have
at all times been administered and operated) in material compliance with, the
requirements of ERISA, the Code and all other applicable Laws.

          (c) Any such Benefit Plan that is intended to be qualified under
Section 401(a) of the Code and exempt from tax under Section 501(a) of the Code
has been determined by the Internal Revenue Service to be so qualified and such
determination remains in effect and has not been revoked.  Nothing has occurred
since the date of any such determination that is reasonably likely to 

                                      -28-
<PAGE>
 
affect adversely such qualification or exemption, or result in the imposition of
excise Taxes or income Taxes on unrelated business income under the Code or
ERISA with respect to any such Benefit Plan.

          (d) There are no pending or, to BAM's knowledge, threatened claims by
or on behalf of any such Benefit Plans, or by or on behalf of any Covered
Persons under any such Benefit Plans, alleging any breach of fiduciary duty on
the part of BAM or any of its officers, directors or employees under ERISA or
any other applicable regulations, or claiming benefit payments (other than those
made in the ordinary operation of such plans), nor is there, to BAM's knowledge,
any basis for any such claim.  Such Benefit Plans are not the subject of any
pending or, to BAM's knowledge, threatened investigation or audit by the
Internal Revenue Service, the Department of Labor or the Pension Benefit
Guaranty Corporation.

          (e) BAM has timely made all required contributions under such Benefit
Plans.

          (f) BAM has not taken any action that may result in OpCo being a party
to, bound by or subject to any Liability on account of, any such Benefit Plan
following the consummation of the Transactions.

          5.1.11  Environmental Matters.  Except as set forth on 3 SCHEDULE 
                  ---------------------                            
5.1.11, to BAM's knowledge, no Environmental Condition exists at any of the
Tower Sites which would have a BAM Material Adverse Effect, individually or in
the aggregate. To BAM's knowledge, except as set forth on SCHEDULE 5.1.11, (i)
there are no polychlorinated byphenyls in any container or equipment on, about,
under or within any Tower Sites, (ii) there is no asbestos at, on, about, under
or within any Tower Sites, and (iii) there are no underground storage tanks,
whether in service or closed in place, under any Tower Sites.

          5.1.12  Absence of Certain Changes or  Events.  Since June 30, 1998, 
                  -------------------------------------                  
BAM has made reasonable efforts consistent with past practice to preserve
relationships with customers, suppliers, employees, lessors, licensors, tenants,
licensees, distributors and others with whom BAM has a business or financial
relationship with respect to the BAM Contributed Assets.  Except as set forth on
3 SCHEDULE 5.1.12, BAM has conducted its operations regarding the BAM
Contributed Assets in the ordinary course of business consistent with past
practice (including with respect to the collection of receivables, payment of
payables and other liabilities, capital expenditures, and contributions to or
accruals in respect of the Benefit Plans).

          5.1.13  Availability of Documents.  BAM has made available to Bidder 
                  -------------------------                             
and Bidder Member copies of all documents, including without limitation all
Contracts identified in the SCHEDULES to this Section 5.1.  Such copies are true
and complete in all material respects and include all material amendments,
supplements and modifications thereto or waivers currently in effect thereunder.

          5.1.14  Purchase for Investment.  BAM and the Transferring 
                  -----------------------                            
Partnerships are acquiring the BAM OpCo Interest and the BAM HoldCo Interest for
their own respective accounts and not with a view to the distribution thereof,
except in the case of the Transferring Partnerships. BAM and the Transferring
Partnerships understand that the BAM OpCo Interest and the BAM HoldCo Interest
have not been registered under the Securities Act and may be resold only if
registered pursuant to the provi-

                                      -29-
<PAGE>
 
sions of the Securities Act or if an exemption from registration is available,
except under circumstances where neither such registration nor such an exemption
is required by law.

          5.1.15  Broker or Finder.  No Person assisted in or brought about the
                  ----------------                                             
negotiation of this Agreement or the Transactions in the capacity of investment
banker, broker, agent or finder or in any similar capacity on behalf of BAM or
any of its Affiliates, other than Goldman, Sachs & Co., whose fees will be borne
by BAM.

          5.1.16  No Other Warranties.  Except for the representations and
                  -------------------                                     
warranties expressly set forth in this Section 5.1 and Section 5.2, the BAM
Contributed Assets are being sold by BAM and the Transferring Partnerships as
is, where is, and with all faults, and there are no other warranties being made
by BAM or the Transferring Partnerships (INCLUDING, WITHOUT LIMITATION, ANY
WARRANTY OF HABITABILITY, MERCHANTABILITY OR WARRANTY FOR A PARTICULAR PURPOSE),
express or implied, in connection with the sale of the BAM Contributed Assets or
the other transactions contemplated by the Transaction Documents.

      5.2 Representations and Warranties of Transferring Partnerships.  Except
          -----------------------------------------------------------         
as disclosed to OpCo in the SCHEDULES to this Agreement, each of the
Transferring Partnerships, severally and not jointly and each solely with
respect to itself, and BAM, jointly with each Transferring Partnership, hereby
represents and warrants to OpCo as follows:

          5.2.1  Partnership.  Such Transferring Partnership is a partnership,
                 -----------                                                  
duly formed and validly existing under the state laws pursuant to which it was
formed.  Such Transferring Partnership has the requisite partnership power and
authority to own, lease, use and occupy the BAM Contributed Assets owned by it
as they are now being owned, leased, used and occupied.

          5.2.2  Authorization.  Such Transferring Partnership has the requisite
                 -------------                                                  
partnership power and authority to execute and deliver the Transaction Documents
to which it is a party and to perform the transactions performed or to be
performed by it thereunder.  Such execution, delivery and performance by such
Transferring Partnership have been duly authorized by all necessary partnership
action.  Each Transaction Document executed and delivered by such Transferring
Partnership has been duly executed and delivered by such Transferring
Partnership and constitutes a valid and binding obligation of such Transferring
Partnership, enforceable against such Transferring Partnership in accordance
with its terms, except to the extent that such enforcement may be limited by
applicable bankruptcy, reorganization, insolvency and other Laws of general
application affecting enforcement of creditors' rights generally.

          5.2.3  Consents and Approvals.  Except for compliance with the HSR Act
                 ----------------------                                         
and the consents specified in 3 SCHEDULE 5.2.3, neither the execution and
delivery by such Transferring Partnership of the Transaction Documents to which
it is a party, nor the performance of the Transactions performed or to be
performed by such Transferring Partnership, will (i) require any filing, consent
or approval or constitute a Default under (A) any Law or Court Order to which
such Transferring Partnership or any of the BAM Contributed Assets owned by it
is subject, (B) the partnership agreement or other governing documents of such
Transferring Partnership or (C) any Contract, Governmental Permit or other
document to which such Transferring Partnership is a party or by which any of
the BAM Contributed Assets owned by such Transferring Partnership is bound,
except with respect to clauses (A) and (C), such Defaults that, individually or
in the aggregate, would not have a BAM Material Adverse Effect, or (ii) 

                                      -30-
<PAGE>
 
result in the creation or imposition of any Encumbrance upon the BAM Contributed
Assets owned by such Transferring Partnership, other than Permitted
Encumbrances.

      5.3 Representations and Warranties of Bidder and Bidder Member.  Each of
          ----------------------------------------------------------          
Bidder and Bidder Member, jointly and severally, hereby represents and warrants
to OpCo, BAM and each of the Transferring Partnerships as follows:

          5.3.1  Corporate.  Each of Bidder and Bidder Member is a corporation
                 ---------                                                    
duly organized, validly existing and in good standing under the laws of the
State of Delaware.  Each of Bidder and Bidder Member has all requisite corporate
power and authority to carry on its business as it has been and is now being
conducted and to own, lease and operate the properties and assets used in
connection therewith.

          5.3.2  Authorization.  Each of Bidder and Bidder Member has the
                 -------------                                           
requisite corporate power and authority to execute and deliver the Transaction
Documents to which it is a party and to perform the transactions performed or to
be performed by it thereunder.  Such execution, delivery and performance by
Bidder and Bidder Member have been duly authorized by all necessary corporate
action. Each Transaction Document executed and delivered by Bidder and Bidder
Member has been duly executed and delivered by such corporation and constitutes
a valid and binding obligation of such corporation, enforceable against the
corporation in accordance with its terms.

          5.3.3  Consents and Approvals.  Except for compliance with the HSR Act
                 ----------------------                                         
and the consents specified in 3 SCHEDULE 5.3.3, neither the execution and
delivery by each of Bidder and Bidder Member of the Transaction Documents to
which it is a party, nor the performance of the Transactions performed or to be
performed by it, will (i) require any filing, consent or approval or constitute
a Default under (A) any Law or Court Order to which it or its properties and
assets are subject, (B) its Charter Documents or bylaws, or (C) any Contract,
Governmental Permit or other document to which it is a party or by which any of
its properties and assets are bound, except with respect to clauses (A) and (C),
such Defaults that, individually or in the aggregate, would not have a Bidder
Material Adverse Effect, or (ii) result in the creation or imposition of any
Encumbrance upon its properties and assets, other than Permitted Encumbrances.

          5.3.4  Broker or Finder.  No Person assisted in or brought about the
                 ----------------                                             
negotiation of this Agreement or the Transactions in the capacity of investment
banker, broker, agent or finder or in any similar capacity on behalf of Bidder
or any of its Affiliates, other than Salomon Smith Barney, whose fees will be
borne by Bidder.

          5.3.5  Capital Stock.  As of the date hereof, Bidder has authorized
                 -------------                                               
capital stock consisting solely of 690,000,000 shares of Bidder Common Stock,
par value $0.01 per share, 90,000,000 shares of Bidder Class A Common Stock, par
value $0.01 per share and 10,000,000 shares of Bidder Preferred Stock, par value
$0.01 per share.  As of September 30, 1998: (a) 82,548,545 shares of Bidder
Common Stock were issued and outstanding, (b) 11,340,000 shares of Bidder Class
A Common Stock were issued and outstanding, (c) no shares of Bidder Preferred
Stock were issued and outstanding, (d) no shares of Bidder Common Stock, Bidder
Class A Common Stock or Bidder Preferred Stock were held as treasury shares, and
(e) 23,343,316 shares of Bidder Common Stock were reserved for issuance under
Bidder's employee stock option plans and warrants (16,064,243 shares of which
were subject to outstanding options, 1,314,990 shares of which were subject to
outstanding warrants and 5,964,083 

                                      -31-
<PAGE>
 
shares of which were reserved for future option grants). Except for the 358,678
shares issued in connection with the acquisition of Millennium Communications
Limited, since September 30, 1998, to the date of this Agreement, no additional
shares of capital stock have been reserved for issuance by Bidder and the only
issuances of shares of capital stock of Bidder have been issuances of Bidder
Common Stock upon the exercise of outstanding Bidder stock options as listed in
3 SCHEDULE 5.3.5 or as permitted under Section 7.1.9(d). As of the date of this
Agreement, there are no existing subscriptions, options, warrants, convertible
securities, calls, commitments, agreements, conversion rights or other rights of
any character (contingent or otherwise) calling for or requiring the issuance,
transfer, sale or other disposition of any shares of the capital stock of
Bidder, or calling for or requiring the issuance of any securities or rights
convertible into or exchangeable for shares of capital stock of Bidder, in any
case except as set forth in SCHEDULE 5.3.5. Bidder Member is an indirect wholly-
owned subsidiary of Bidder.

          5.3.6  SEC Reports.  Bidder has filed all required forms, reports and
                 -----------                                                   
documents with the SEC since January 1, 1998 (collectively, the "'Bidder's SEC
                                                                  ------------
Reports").  Bidder's SEC Reports complied, as of their respective dates,  in all
- -------                                                                         
material respects with all applicable requirements of the Securities Act and the
Exchange Act.  As of their respective dates, none of Bidder's SEC Reports,
including, without limitation, any financial statements or schedules included or
incorporated by reference therein, contained any untrue statement of a material
fact or omitted to state a material fact required to be stated or incorporated
by reference therein or necessary in order to make the statements therein, in
light of the circumstances under which they were made, not misleading.  There
have been filed as exhibits to, or incorporated by reference in, Bidder's
Registration Statement on Form S-1 as filed with the SEC on August 18, 1998, all
contracts which, as of the date hereof, are material as described in Item
601(b)(10) of Regulation S-K.  Bidder has heretofore delivered to BAM, in the
form filed with the SEC, all of Bidder's SEC Reports.  The audited consolidated
financial statements and the unaudited interim financial statements of Bidder,
including in each case the notes thereto, included in the Bidder's SEC Reports
have been prepared in accordance with generally accepted accounting principles
consistently applied throughout the periods involved (except as may be indicated
therein or in the notes thereto) ("GAAP"), and such balance sheets, including
                                   ----                                      
the related notes, fairly present the consolidated financial position, assets
and liabilities (whether accrued, absolute, contingent or otherwise) of Bidder
and its subsidiaries at the dates indicated and such consolidated statements of
income, changes in stockholders' equity and statements of cash flow fairly
present the consolidated results of operations, changes in stockholders' equity
and cash flow of Bidder for the periods indicated, subject, in the case of the
unaudited interim financial statements, to normal, recurring audit adjustments.
The unaudited financial statements included in the Bidder's SEC Reports contain
all adjustments, which are solely of a normal recurring nature, necessary to
present fairly the results of operations and changes in stockholders' equity and
financial position for the periods then ended.

          5.3.7  Absence of Certain Changes.  Except as described in 3 SCHEDULE
                 --------------------------                                    
5.3.7, since December 31, 1997, Bidder has conducted its business solely in the
ordinary course consistent with past practice and has not been subject to any
other events or conditions of any character that would have a Bidder Material
Adverse Effect.

          5.3.8  Bidder Articles and Bylaws.  True and complete copies of  the
                 --------------------------                                   
Bidder's charter documents and bylaws as in effect on the date of this Agreement
are included in the Bidder's SEC Reports.  Prior to the date hereof, Bidder
Member has provided BAM with true and complete of the Bidder Member's charter
documents and bylaws in effect on the date of this Agreement.

                                      -32-
<PAGE>
 
          5.3.9  Threatened or Pending Litigation. There are no disputes, 
                 --------------------------------               
claims, actions, suits or proceedings, arbitrations or investigations pending
or, to the knowledge of Bidder or Bidder Member, threatened against or affecting
Bidder, Bidder Member or their respective properties, assets or operations that
would have a Bidder Material Adverse Effect.

          5.3.10  No Impact of Bidder Agreements on OpCo, HoldCo or HoldCo Sub.
                  ------------------------------------------------------------  
Neither Bidder nor Bidder Member is a party to, nor is Bidder, Bidder Member or
any of their respective properties or assets subject to or bound by, any
agreement, contract or commitment which would restrict the ability of OpCo,
HoldCo or HoldCo Sub to conduct any kind of business, or own or operate any kind
of assets, anywhere in the United States.

          5.3.11  Bidder Contributed Shares.  The issuance of the Bidder
                  -------------------------                             
Contributed Shares has been duly and validly authorized by all necessary
corporate action.  No further approval or authorization of the stockholders or
the directors of Bidder, of any Governmental Authority or of any other Person is
required for the issuance by Bidder of the Bidder Contributed Shares and the
contribution thereof to HoldCo in accordance with the terms of this Agreement.
When issued and contributed to HoldCo upon the formation of HoldCo, the Bidder
Contributed Shares shall be duly and validly issued, fully paid and
nonassessable, and free and clear of any Encumbrances and preemptive or similar
rights and restrictions of any nature including, without limitation, any
restrictions on the right to vote, sell or otherwise dispose of the Bidder
Contributed Shares (other than any restrictions imposed under the Securities Act
or Section 160(c) of the Delaware General Corporation Law).  The issuance and
contribution of the Bidder Contributed Shares to HoldCo upon the formation of
HoldCo shall not be made in violation of the terms of any preemptive right or
agreement of Bidder and shall be made in compliance with all applicable charter
documents and bylaws of Bidder and all Laws.  When distributed to BAM in
connection with the dissolution of HoldCo, as provided in the HoldCo Operating
Agreement, the Bidder Contributed Shares shall be duly and validly issued, fully
paid and nonassessable, and free and clear of any Encumbrances and preemptive or
similar rights and restrictions of any nature (other than any Encumbrance
created by BAM) including, without limitation, any restrictions on the right to
vote, sell or otherwise dispose of the Bidder Contributed Shares (other than any
restrictions imposed under the Securities Act).  Such distribution to BAM shall
not violate of the terms of any preemptive right or agreement of Bidder or the
charter documents or bylaws of Bidder or any applicable Law.

          5.3.12  Share Ownership Limitations.  No "fair price," "moratorium,"
                  ---------------------------                                 
"control share acquisition" or other form of anti-takeover statute or regulation
as in effect on the date hereof or any anti-takeover provision in the
Certificate of Incorporation or By-laws of Bidder or Bidder Member or any
shareholder rights plan or similar arrangement or material change of control
provision is applicable to any of the transactions contemplated by this
Agreement or the other Transaction Documents.

          5.3.13  Bidder Financing.  The Commitment Letter is in full force and
                  -----------------                                            
effect as of the date hereof.  The Lender has not notified Bidder or otherwise
communicated to Bidder the existence of any fact or condition which would alone
or together with any other fact or condition result in the termination or
modification of the Commitment Letter or cause the Lender to fail to enter into
the Financing Documents or issue the Anticipated Financing.  Bidder knows of no
fact or condition which would alone or together with any other fact or condition
result in the termination or modification of the Commitment Letter or a failure
by the Lender to enter into the Financing Documents or issue the Anticipated
Financing.  Bidder has complied with, or by Closing will comply with, all
conditions, 

                                      -33-
<PAGE>
 
obligations and requirements that are set forth in the Commitment Letter and
applicable to Bidder and Bidder Member.

          5.3.14  Funds Available for Bidder Contribution.  Bidder either (a) 
                  ---------------------------------------                 
has sufficient cash or cash equivalents or unconditional commitments by third
parties to pay such cash or cash equivalents to make the Bidder Cash
Contribution or (b) will have available prior to the Closing sufficient cash or
cash equivalents or unconditional commitments of third parties to pay such cash
or cash equivalents.

          5.3.15  Purchase for Investment.  Bidder Member is acquiring the 
                  -----------------------                                  
Bidder HoldCo Interest for its own account and not with a view to the
distribution thereof. Bidder understands that the Bidder HoldCo Interest has not
been registered under the Securities Act and may be resold only if registered
pursuant to the provisions of the Securities Act or if an exemption from
registration is available, except under circumstances where neither such
registration nor such an exemption is required by law.

          5.3.16  No Other Representations or Warranties. Except for the
                  --------------------------------------                
representations and warranties expressly set forth in this Section 5.3 neither
the Bidder nor its Affiliates (including Bidder Member) has made or is making
any representations or warranties to BAM, the Transferring Partnerships or OpCo,
express or implied, in connection with the transactions contemplated by the
Transaction Documents.


                                   ARTICLE 6

                          AGREEMENTS PENDING CLOSING

      6.1 Agreements of BAM Pending the Closing.  BAM covenants and agrees that,
          -------------------------------------                                 
pending the Closing, except as otherwise agreed to in writing by Bidder, and
except in connection with the performance of the transactions contemplated
hereby:

          6.1.1  Business in the Ordinary Course.  BAM shall operate, maintain 
                 -------------------------------                      
and service the BAM Contributed Assets and the BAM Assumed Liabilities in the
ordinary course consistent with past practice and in compliance in all material
respects with all applicable Laws and, to the extent consistent therewith, use
all reasonable efforts to preserve intact the current business organization of
the business of the BAM Contributed Assets, preserve the goodwill and
relationships with customers, suppliers and others having business dealings with
the business of the BAM Contributed Assets, provided that BAM may enter into
Tower Leases with respect to the Tower Structures in the ordinary course
consistent with past practice.

          6.1.2 Update Schedules.  BAM shall promptly disclose to Bidder any
                ----------------                                            
information contained in its representations and warranties or any of the other
Schedules hereto which, because of an event occurring after the date hereof, is
incomplete or is no longer correct as of all times after the date hereof until
the Closing Date; provided, however, that none of such disclosures shall be
deemed to modify, amend or supplement the representations and warranties of BAM
or the schedules hereto for the purposes of Article VII hereof, unless Bidder
shall have consented thereto in writing, except (a) to the extent that a
schedule update relates to the addition to any Schedule of Tower Structures or
Tower Sites acquired or constructed after the date of this Agreement in the
ordinary course consistent with past 

                                      -34-
<PAGE>
 
practice or the execution and delivery of Tower Leases or Site Leases entered
into after the date of this Agreement in the ordinary course consistent with
past practice and matters related thereto, (b) for the information contained in
the Required BAM Phase I Reports (as defined in Section 6.1.7) and the Optional
Bidder Phase I Reports (as defined in Section 6.2.5), and (c) for updates to
SCHEDULE 5.1.9 with respect to the Identified Employees identified by Bidder and
BAM in accordance with the provisions of Section 6.3.2 ("Permitted Schedule
                                                         -------------------
Updates").
- -------

          6.1.3  Conduct of Business.  BAM shall use its reasonable efforts to
                 -------------------                                          
conduct its business in such a manner that on the Closing Date the
representations and warranties of BAM contained in this Agreement shall be true
as though such representations and warranties were made on and as of such date.
Furthermore, BAM shall cooperate with Bidder and Bidder Member and use its
reasonable efforts to cause all of the conditions to the obligations of Bidder,
Bidder Member and BAM under this Agreement to be satisfied on or prior to the
Closing Date.

          6.1.4  Sale of Assets; Negotiations.  Without limiting the 
                 ----------------------------                        
generality of Section 6.1.3 and except for conveyances to OpCo contemplated
hereby, BAM and the Transferring Partnerships shall not, directly or indirectly,
sell or encumber all or any part of the BAM Contributed Assets, other than in
the ordinary course of its business consistent with past practice or in
connection with the sale or other divestiture of any cellular system owned by
BAM or the Transferring Partnerships, or initiate or participate in any
discussions or negotiations or enter into any agreement to do any of the
foregoing provided, however, that the total number of Tower Structures that BAM
sells pursuant to the foregoing shall not exceed four hundred (400).

          6.1.5  Access.  BAM shall give to Bidder's officers, employees, 
                 ------                                                   
counsel, accountants and other representatives free and full access to and the
right to inspect, during normal business hours, all of the premises, properties,
assets, records, contracts and other documents relating to the BAM Contributed
Assets or the BAM Assumed Liabilities and shall permit them to consult with the
officers, employees, accountants, counsel and agents of BAM for the purpose of
making such investigation of the BAM Contributed Assets or the BAM Assumed
Liabilities, as Bidder shall desire to make, provided that such investigation
shall not unreasonably interfere with the business operations of BAM.
Furthermore, BAM shall furnish to Bidder all such documents and copies of
documents and records and information with respect to the BAM Contributed Assets
or the BAM Assumed Liabilities and copies of any working papers relating thereto
as Bidder shall from time to time reasonably request and shall permit Bidder and
its agents to make such physical inventories and inspections of the BAM
Contributed Assets or the BAM Assumed Liabilities as Bidder may reasonably
request from time to time. Notwithstanding the foregoing provisions of this
Section 6.1.5, BAM shall not be required to provide any such information to
Bidder if, in the reasonable determination of the general counsel of BAM, access
to such information by Bidder is prohibited by the provisions of any
confidentiality agreements binding upon BAM or any of the Transferring
Partnerships or by applicable Law.

          6.1.6  Press Releases.  Except as required by applicable Law or in
                 --------------                                             
connection with communications with the other partners of the Transferring
Partnerships or the process of obtaining consents contemplated by Sections 2.3.5
and 2.3.6 hereof, BAM shall not give notice to third parties or otherwise make
any public statement or releases concerning this Agreement or the transactions
contemplated hereby except for such written information as shall have been
approved in writing as to form and content by Bidder, which approval shall not
be unreasonably withheld or delayed and except in 

                                      -35-
<PAGE>
 
connection with obtaining a required consent to or approval of the transactions
contemplated by the Agreement from the third party so notified.

          6.1.7  Required BAM Phase I Environmental Reports.  At its sole cost 
                 ------------------------------------------               
and expense, BAM shall have Phase I Environmental Reports performed for each of
the Tower Sites that includes an Included Tower Structure and was acquired by
BAM or any of the Transferring Partnerships since January 1, 1995 and for which
no such report exists on the date of this Agreement, which Tower Sites are
listed on 3 SCHEDULE 6.1.7 hereto. Such reports (any such report is referred to
herein as a "Required BAM Phase I Report" and such reports are referred to
             ---------------------------
collectively herein as the "Required BAM Phase I Reports") shall be performed 
                            ----------------------------
in accordance with BAM's standard methods and procedures for performing Phase I
Environmental Reports for its cellular tower sites. Notwithstanding any
provision of this Agreement to the contrary BAM shall have the right, subject to
the following provisions of this Section 6.1.7, to exclude from the BAM
Contributed Assets any Tower Site which is the subject of a Required BAM Phase I
Report that reveals an Environmental Condition. In order to exercise such right,
BAM shall give written notice to Bidder of the Tower Sites to be excluded from
the BAM Contributed Assets because of Environmental Conditions revealed by a
Required BAM Phase I Report. Within ten (10) business days after Bidder's
receipt of any such notice from BAM, Bidder shall have the right to request that
BAM obtain an estimate of the costs and expenses required to remediate the
Environmental Conditions affecting any of the Tower Sites identified in BAM's
notice. Within fifteen (15) business days after BAM's receipt of any such
request from Bidder, BAM shall secure, from a reputable third party
environmental consultant or remediation company, a written estimate of the costs
and expenses required to remediate the Environmental Conditions affecting the
subject Tower Sites. BAM shall provide Bidder with a copy of such estimate
promptly upon BAM's receipt thereof. If the third party estimate is that the
total costs and expenses required to remediate the Environmental Conditions
affecting any Tower Site are $150,000 or more, BAM shall have the right to
exclude the Tower Site from the BAM Contributed Assets notwithstanding Bidder's
previous request that the Tower Site be included in the BAM Contributed Assets.
If the third party estimate is that the total costs and expenses required to
remediate the Environmental Conditions affecting any Tower Site are less than
$150,000, BAM shall promptly commence the work required to remediate the
Environmental Conditions affecting the Tower Site and shall continue to perform
such work with reasonable diligence until such work is completed, all at BAM's
sole cost and expense. If such work is not completed prior to the Closing Date,
BAM shall continue to perform such work after the Closing Date until such work
is completed, all at BAM's sole cost and expense; and such Tower Site shall not
be granted, conveyed, assigned, transferred or delivered to OpCo until such work
is completed. With respect to each such Tower Site that is not granted,
conveyed, assigned, transferred or delivered to OpCo at Closing, from and after
the Closing Date, until such time that the remediation work is completed by BAM
and the Tower Site is granted, conveyed, assigned, transferred and delivered to
OpCo, BAM or the applicable Transferring Partnership shall deliver to OpCo the
interest of BAM or such Transferring Partnership in the economic benefits of the
Tower Site and related BAM Contributed Assets. BAM shall provide Bidder with
true and complete copies of the Required BAM Phase I Reports, except any such
report that relates to a Tower Site that is excluded from the BAM Contributed
Assets pursuant to the provisions of this Section 6.1.7. The Required BAM Phase
I Reports and any third party estimate of remediation costs and expenses
obtained by BAM pursuant to this Section 6.1.7 shall used by Bidder solely in
connection with its internal consideration of the transactions contemplated by
this Agreement and not in any way adverse to BAM, and all Required BAM Phase I
Reports and such third party estimates at all times shall be kept strictly
confidential by Bidder; provided that Bidder may provide the Lender with copies
of the Required BAM Phase I Reports and such third party estimates subject to
the conditions that the Lender (a) use such

                                      -36-
<PAGE>
 
reports and estimates solely in connection with its internal consideration of
the transactions contemplated by this Agreement and the Financing Documents and
not in any way adverse to BAM and (b) keep all such reports and estimates
strictly confidential at all times..

      6.2 Agreements of Bidder and Bidder Member Pending the Closing. Each of
          ----------------------------------------------------------         
Bidder and Bidder Member covenants and agrees that, pending the Closing and
except as otherwise agreed to in writing by BAM:

          6.2.1  Update Schedules.  Bidder and Bidder Member shall promptly
                 ----------------                                          
disclose to BAM any information contained in its representations and warranties
or any of the other Schedules hereto which, because of an event occurring after
the date hereof, is incomplete or is no longer correct as of all times after the
date hereof until the Closing Date; provided, however, that none of such
disclosures shall be deemed to modify, amend or supplement the representations
and warranties of Bidder and Bidder Member or the schedules hereto for the
purposes of Article VII hereof, unless BAM shall have consented thereto in
writing.

          6.2.2  Conduct of Business.  Each of Bidder and Bidder Member shall 
                 -------------------                                    
use its reasonable efforts to conduct its business in such a manner that on the
Closing Date the representations and warranties of Bidder and Bidder Member
contained in this Agreement shall be true as though such representations and
warranties were made on and as of such date.  Furthermore, each of Bidder and
Bidder Member shall cooperate with BAM and use its reasonable efforts to cause
all of the conditions to the obligations of BAM, Bidder and Bidder Member under
this Agreement to be satisfied on or prior to the Closing Date.

          6.2.3  Access.  Bidder shall give to BAM's officers, employees, 
                 ------                                                   
counsel, accountants and other representatives free and full access to and the
right to inspect, during normal business hours, all of the premises, properties,
assets, records, contracts and other documents relating to its business and
shall permit them to consult with the officers, employees, accountants, counsel
and agents of Bidder for the purpose of making such investigation of its
business and the properties and assets used in connection therewith, as BAM
shall desire to make, provided that such investigation shall not unreasonably
interfere with the business operations of Bidder. Furthermore, Bidder shall
furnish to BAM all such documents and copies of documents and records and
information with respect to the affairs of its business and copies of any
working papers relating thereto as BAM shall from time to time reasonably
request and shall permit BAM and its agents to make such physical inventories
and inspections of the properties and assets used in connection with its
business as BAM may reasonably request from time to time. Notwithstanding the
foregoing provisions of this Section 6.1.5, Bidder shall not be required to
provide any such information to BAM if, in the reasonable determination of the
general counsel of Bidder, access to such information by BAM is prohibited by
the provisions of any confidentiality agreement binding upon Bidder or by
applicable Law.

          6.2.4  Press Releases.  Except as required by applicable Law or in
                 --------------                                             
connection with communications with the other partners of the Transferring
Partnerships or the process of obtaining consents contemplated by Sections 2.3.5
and 2.3.6 hereof, neither Bidder nor Bidder Member shall give notice to third
parties or otherwise make any public statement or releases concerning this
Agreement or the transactions contemplated hereby except for such written
information as shall have been approved in writing as to form and content by
BAM, which approval shall not be unreasonably withheld or delayed.

                                      -37-
<PAGE>
 
          6.2.5  Optional Bidder Phase I Environmental Reports.  At its sole 
                 ---------------------------------------------          
cost and expense, Bidder shall have the right, but not the obligation, to
perform desk-top/NEPA Phase I Environmental Reports for any of the Tower Sites
(any such report is referred to herein as an "Optional Bidder Phase I Report"
                                              ------------------------------
and such reports are referred to collectively herein as the "Optional Bidder 
                                                             ---------------
Phase I Reports"). Bidder shall provide BAM with true and complete copies of the
- ---------------
Optional Bidder Phase I Reports.  The Optional Bidder Phase I Reports shall used
by Bidder solely in connection with its internal consideration of the
transactions contemplated by this Agreement and not in any way adverse to BAM,
and all Optional Bidder Phase I Reports at all times shall be kept strictly
confidential by Bidder; provided that Bidder may provide the Lender with copies
of the Optional Bidder Phase I Reports subject to the conditions that the Lender
(a) use such reports solely in connection with its internal consideration of the
transactions contemplated by this Agreement and the Financing Documents and not
in any way adverse to BAM and (b) keep all such reports strictly confidential at
all times.

          6.2.6  No Modification of Commitment Letter or Forms of Financing
                 ----------------------------------------------------------
Documents.  Bidder shall not agree, without the prior written consent of BAM, to
- ---------                                                                       
any modification or amendment to the Commitment Letter or the most recent draft
of any of the Financing Documents that was provided by the Lender to BAM and
Bidder as of the date of this Agreement.  Bidder shall promptly provide BAM with
copies of all written, electronic and facsimile communications between the
Lender and Bidder or any of its Affiliates relating to the Anticipated
Financing.

          6.2.7  Rights Agreement Amendment.  Bidder shall cause the Rights
                 --------------------------                                
Agreement between Bidder and ChaseMellon Shareholder Services, L.L.C., as Rights
Agent (the "Rights Agreement"), to be amended so that, subject to the condition
            ----------------                                                   
that BAM does acquire any other "Voting Securities" (as defined in the Rights
Agreement) beyond those described in the following clauses (i), (ii) and (iii),
BAM will not become an "Acquiring Person" under the Rights Agreement upon (i)
the issuance of the Bidder Contibuted Shares by Bidder and the contribution
thereof by Bidder Member to HoldCo at the Closing and also after Closing in
accordance with the provisions of Section 3.8 hereof, or (ii) the distribution
or transfer of the Bidder Contributed Shares (including all changes in the
Bidder Contributed Shares by reason of dividends payable in stock of Bidder,
distributions, issuance of stock, stock splits, recapitalizations,
reorganizations, mergers, consolidations, combinations, exchanges or other
similar changes with regard to Bidder Common Stock occurring following the
Closing Date, and together with all cash, securities (and rights and interests
therein) and other property received or receivable with respect to the Bidder
Contributed Shares) to BAM in connection with the dissolution of HoldCo or
otherwise, or (iii) the payment by Bidder Member to BAM, made in Bidder Common
Stock in connection with the dissolution of HoldCo pursuant to Section 9.5 of
the HoldCo Operating Agreement, of an amount equal to the Allocated Share (as
defined in the HoldCo Operating Agreement) of the Fair Market Value (as defined
in the HoldCo Operating Agreement) of the HoldCo Sub membership interest (the
"Rights Agreement Amendment").
- ---------------------------   

      6.3   Agreements of BAM and Bidder Pending Closing.
            -------------------------------------------- 

          6.3.1  Approvals and Consents and Regulatory Filings.
                 --------------------------------------------- 

          (a) Each party hereto agrees to use commercially reasonable efforts to
comply with all legal requirements which may be imposed on such party with
respect to the transactions contemplated by the Transaction Documents and to
obtain all consents, orders and approvals of Governmental Entities and non-
governmental third parties that may be or become necessary for (i) the

                                      -38-
<PAGE>
 
consummation of the transactions contemplated by the Transaction Documents and
(ii) the ownership of OpCo, HoldCo Sub and HoldCo by Bidder Member and BAM, and
each party will cooperate fully with the other parties in promptly seeking to
obtain all such authorizations, consents, orders and approvals. Without
limitation, if required by applicable law, Bidder, Bidder Member and BAM shall
each make an appropriate filing of a Notification and Report Form pursuant to
the HSR Act no later than twenty (20) days after the date hereof and shall
promptly respond to any request for additional information with respect thereto.
Each such filing shall request early termination of the waiting period imposed
by the HSR Act.

          (b) Notwithstanding anything else to the contrary contained in this
Agreement, none of OpCo, HoldCo Sub, HoldCo nor BAM nor any Transferring
Partnership shall have any obligation to oppose, challenge or appeal any suit,
action or proceeding by any Governmental Entity before any court or governmental
authority, agency or tribunal, domestic or foreign or any order or ruling by any
such body (i) seeking to restrain or prohibit or restraining or prohibiting the
consummation of the transactions contemplated by the Transaction Documents, (ii)
seeking to prohibit or limit or prohibiting or limiting the ownership, operation
or control by Bidder Member or BAM of HoldCo, HoldCo Sub or OpCo or (iii)
seeking to compel or compelling Bidder or BAM any of their respective Affiliates
to dispose of, grant rights in respect of, or hold separate any portion of the
business or assets of Bidder or BAM or any of their respective Affiliates.

          6.3.2  Identified Employees.  Not less than thirty (30) days prior to
                 --------------------                                          
the Closing Date Bidder and BAM shall have (a) identified the Identified
Employees (and BAM shall have updated SCHEDULE 5.1.9 with the required
information relating to the Identified Employees), and (b) agreed upon the
compensation and other benefits to be offered by OpCo or HoldCo Sub to the
Identified Employees and any other terms and conditions with respect to the
hiring of the Identified Employees by OpCo or HoldCo Sub, which agreements shall
be set forth in an agreement (the "Agreement Regarding Identified Employees"),
                                   ----------------------------------------   
which shall in form and substance mutually acceptable to Bidder and BAM and
executed and delivered by Bidder and BAM not less than thirty (30) days prior to
the Closing Date.


                                   ARTICLE 7

                      CONDITIONS PRECEDENT TO THE CLOSING

      7.1 Conditions Precedent to BAM's Obligations.  All obligations of BAM and
          -----------------------------------------                             
the Transferring Partnerships under this Agreement are subject to the
fulfillment or satisfaction, prior to or at the Closing, of each of the
following conditions precedent:

          7.1.1  Representations and Warranties True as of the Closing Date.  
                 ----------------------------------------------------------   
The representations and warranties of Bidder and Bidder Member contained in this
Agreement or in any schedule, certificate or document delivered by Bidder or
Bidder Member to BAM and the Transferring Partnerships pursuant to the
provisions hereof shall have been true in all material respects on the date
hereof and shall be true in all material respects on the Closing Date with the
same effect as though such representations and warranties were made as of such
date, in each case without regard to any schedule updates furnished by Bidder or
Bidder Member after the date hereof.

                                      -39-
<PAGE>
 
          7.1.2  Compliance with this Agreement.  Each of Bidder and Bidder 
                 ------------------------------                             
Member shall have performed and complied with all agreements and conditions
required by this Agreement to be performed or complied with by it prior to or at
the Closing.

          7.1.3  Closing Certificate.  BAM and the Transferring Partnerships 
                 -------------------                                         
shall have received a certificate from each of Bidder and Bidder Member, dated
the Closing Date, certifying in such detail as BAM may reasonably request that
the conditions specified in Sections 7.1.1 and 7.1.2 hereof have been fulfilled.

          7.1.4  Financing.  HoldCo, HoldCo Sub, OpCo and the Lender shall have
                 ---------                                                     
entered into the definitive Financing Documents with respect to the Anticipated
Financing, each in the form of the most recent draft thereof that was provided
by the Lender to BAM and Bidder as of the date of this Agreement, with such
changes thereto as BAM and Bidder may mutually approve, and all conditions
precedent to the obligations of the Lender thereunder to provide such financing
shall have been satisfied or waived.

          7.1.5  No Threatened or Pending Litigation.  On the Closing Date, no
                 -----------------------------------                          
suit, action or other proceeding, or injunction or final judgment relating
thereto, shall be threatened in writing or be pending before any court or
governmental or regulatory official, body or authority in which it is sought to
restrain or prohibit or to obtain damages or other relief in connection with
this Agreement or the consummation of the transactions contemplated hereby, and
no investigation that might result in any such suit, action or proceeding shall
be pending or threatened.

          7.1.6  Consents and Approvals.  The waiting period required under the
                 ----------------------                                        
HSR Act for the transactions contemplated hereby shall have expired or been
terminated; if applicable, the consent and approval of the CTDEP and the NJDEP
shall have been obtained; the consents specified in 3 SCHEDULE 7.1.6 (the
"Required Consents") shall have been obtained; and each governmental, judicial
- ------------------                                                            
or regulatory official, body or authority having jurisdiction over BAM, Bidder
or Bidder Member to the extent that their consent or approval is required or
necessary under applicable orders, laws, rules or regulations, for the
consummation of the transactions contemplated hereby in the manner herein
provided, shall have granted such consent or approval.

          7.1.7  Optional Bidder Phase I Reports.  BAM shall have received from
                 -------------------------------                               
Bidder true and complete copies of the Optional Bidder Phase I Reports.

          7.1.8  Fundamental Transactions.   Bidder shall not have (a) been a
                 ------------------------                                    
party to any merger, consolidation or business combination in which Bidder was
not the surviving corporation, (b) been liquidated, wound-up or dissolved, (c)
sold, transferred or disposed of all or a substantial part of its assets, (d)
declared any dividend, or (e) issued any capital stock having voting rights that
are disproportional to the voting rights of the Bidder Common Stock.

          7.1.9  Bidder Services Agreement.  Bidder, HoldCo Sub and OpCo shall
                 -------------------------                                    
have executed and delivered the Bidder Services Agreement, in form and substance
reasonably acceptable to BAM and consistent with the terms set forth in the
letter agreement between BAM and Bidder attached hereto as EXHIBIT 2.7.

                                      -40-
<PAGE>
 
          7.1.10  Management Agreement.  HoldCo Sub and OpCo shall have executed
                  --------------------                                          
and delivered the Management Agreement, in form and substance reasonably
acceptable to BAM and consistent with the terms set forth in the letter
agreement between BAM and Bidder attached hereto as EXHIBIT 2.7.

          7.1.11  Transitional Services Agreement.  HoldCo Sub and OpCo shall 
                  -------------------------------                       
have executed and delivered the Transitional Services Agreement, in form and
substance reasonably acceptable to BAM and consistent with the terms set forth
in the letter agreement between BAM and Bidder attached hereto as EXHIBIT 2.7.

          7.1.12  Rights Agreement Amendment.  Bidder shall have caused the 
                  --------------------------                            
Rights Agreement Amendment to have been duly adopted and the same shall have
become effective.

      7.2 Conditions Precedent to the Obligations of Bidder.  All obligations of
          -------------------------------------------------                     
Bidder and Bidder Member under this Agreement are subject to the fulfillment or
satisfaction, prior to or at the Closing, of each of the following conditions
precedent:

          7.2.1  Representations and Warranties True as of the Closing Date.  
                 ----------------------------------------------------------   
The representations and warranties of BAM contained in this Agreement or in any
schedule, certificate or document delivered by BAM to Bidder or Bidder Member
pursuant to the provisions hereof shall have been true in all material respects
on the date hereof and shall be true in all material respects on the Closing
Date with the same effect as though such representations and warranties were
made as of such date, in each case without regard to any schedule updates
furnished by BAM after the date hereof other than Permitted Schedule Updates.

          7.2.2  Compliance with this Agreement.  BAM shall have performed and
                 ------------------------------                               
complied with all agreements and conditions required by this Agreement to be
performed or complied with by it prior to or at the Closing, except for non-
performances or non-compliances which result in an adjustment pursuant to
Section 3.5.3 hereof.

          7.2.3  Closing Certificate.  Bidder and Bidder Member shall have
                 -------------------                                      
received a certificate from BAM, dated the Closing Date, certifying in such
detail as Bidder may reasonably request that the conditions specified in
Sections 7.2.1 and 7.2.2 hereof have been fulfilled.

          7.2.4  Financing.  BAM, BAM Sub, HoldCo, HoldCo Sub, OpCo and the 
                 ---------                                                  
Lender shall have entered into the definitive Financing Documents with respect
to the Anticipated Financing, each in the form of the most recent draft thereof
that was provided by the Lender to BAM and Bidder as of the date of this
Agreement, with such changes thereto as BAM and Bidder may mutually approve, and
all conditions precedent to the obligations of the Lender thereunder to provide
such financing shall have been satisfied or waived.

          7.2.5  No Threatened or Pending Litigation.  On the Closing Date, no
                 -----------------------------------                          
suit, action or other proceeding, or injunction or final judgment relating
thereto, shall be threatened in writing or be pending before any court or
governmental or regulatory official, body or authority in which it is sought to
restrain or prohibit or to obtain damages or other relief in connection with
this Agreement or the consummation of the transactions contemplated hereby, and
no investigation that might result in any such suit, action or proceeding shall
be pending or threatened.

                                      -41-
<PAGE>
 
          7.2.6  Consents and Approvals.  The waiting period required under the
                 ----------------------                                        
HSR Act for the transactions contemplated hereby shall have expired or been
terminated; if applicable, the consent and approval of the CTDEP and the NJDEP
shall have been obtained; the Required Consents shall have been obtained; and
each governmental, judicial or regulatory official, body or authority having
jurisdiction over BAM, Bidder or Bidder Member to the extent that their consent
or approval is required or necessary under applicable orders, laws, rules or
regulations, for the consummation of the transactions contemplated hereby in the
manner herein provided, shall have granted such consent or approval.

          7.2.7  Required BAM Phase I Reports.  Bidder shall have received from
                 ----------------------------                                  
BAM true and complete copies of the Required BAM Phase I Reports which BAM is
obligated to provide to Bidder pursuant to the provisions of Section 6.1.7
hereof.

          7.2.8  Bidder Services Agreement.  Bidder, HoldCo Sub and OpCo shall
                 -------------------------                                    
have executed and delivered the Bidder Services Agreement, in form and substance
reasonably acceptable to Bidder and consistent with the terms set forth in the
letter agreement between BAM and Bidder attached hereto as EXHIBIT 2.7.  If at
Closing BAM waives the condition set forth in Section 7.1.9, at Closing Bidder
shall waive the condition set forth in this Section 7.2.8.

          7.2.9  Management Agreement.  HoldCo Sub and OpCo shall have executed
                 --------------------                                          
and delivered the Management Agreement, in form and substance reasonably
acceptable to Bidder and consistent with the terms set forth in the letter
agreement between BAM and Bidder attached hereto as EXHIBIT 2.7.  If at Closing
BAM waives the condition set forth in Section 7.1.10, at Closing Bidder shall
waive the condition set forth in this Section 7.2.9.

          7.2.10  Transitional Services Agreement.  BAM shall have executed and
                  -------------------------------                              
delivered the Transitional Services Agreement, in form and substance reasonably
acceptable to Bidder and consistent with the terms set forth in the letter
agreement between BAM and Bidder attached hereto as EXHIBIT 2.7. If at Closing
BAM waives the condition set forth in Section 7.1.11, at Closing Bidder shall
waive the condition set forth in this Section 7.2.10.


                                   ARTICLE 8

                 CERTAIN POST-CLOSING COVENANTS OF THE PARTIES

      8.1 Post-Closing Covenants Related to OpCo.  From and after the Closing,
          --------------------------------------                              
OpCo shall, and HoldCo, HoldCo Sub and Bidder Member will cause OpCo to, comply
with each of the following covenants, except as otherwise determined by the
mutual consent of BAM and Bidder Member:

          8.1.1  Conduct of Business.  OpCo shall not engage in any line of
                 -------------------                                       
business except for the ownership, operation and maintenance of the Tower
Structures, the performance of its obligations under the ground leases,
easements and rights-of-way and the performance of its rights and obligations
under the Build-to-Suit Agreement, the Management Agreement and the Global Lease
and any leases or subleases of tower capacity with respect to the Tower
Structures (including, without limitation, Tower Structures developed pursuant
to the Build-to-Suit Agreement).  OpCo shall not make any investment in, or
acquire any equity securities of, any Person.

                                      -42-
<PAGE>
 
          8.1.2  Solvency.  OpCo shall not voluntarily take any action that 
                 --------                                                   
would cause it to cease to be Solvent.  "Solvent" means that the aggregate 
                                         -------                           
present fair saleable value of the applicable Person's assets is in excess of
the total cost of its probable liability on its existing debts to third parties
as they become absolute and matured, such Person has not incurred debts beyond
its foreseeable ability to pay such debts as they mature, and such Person has
capital adequate to conduct the business in which it is presently employed.
 
          8.1.3  Bankruptcy.  OpCo shall not voluntarily dissolve or liquidate,
                 ----------                                                    
shall not make a voluntary assignment for the benefit of creditors, shall not
file a petition in bankruptcy, shall not petition or apply to any tribunal for
any receiver or trustee, shall not commence any proceeding relating to itself
under any bankruptcy, reorganization, readjustment of debt, dissolution or
liquidation law or statute of any jurisdiction, shall not indicate its consent
to, approval of or acquiescence in any such proceeding and shall use its best
efforts to have discharged the appointment of any receiver of or trustee for
OpCo or any substantial part of its property;

          8.1.4  Indebtedness.  OpCo shall not, directly or indirectly, remain
                 ------------                                                 
liable, create, incur, assume, guaranty, or otherwise become or remain directly
or indirectly liable with respect to any Indebtedness.  "Indebtedness" means, at
                                                         ------------           
any time, (a) liabilities for borrowed money, (b) liabilities for the deferred
purchase price of property acquired by the applicable Person (excluding accounts
payable arising in the ordinary course of business but including all liabilities
created or arising under any conditional sale or other title retention agreement
with respect to any such property); (c)  all liabilities appearing on its
balance sheet in accordance with GAAP in respect of capital leases; (d) all
liabilities for borrowed money secured by any Encumbrance with respect to any
property owned by such Person (whether or not it has assumed or otherwise become
liable for such liabilities); (e) all liabilities in respect of letters of
credit or instruments serving a similar function issued or accepted for its
account by banks and other financial institutions (whether or not representing
obligations for borrowed money); (g) any guaranty of such Person with respect to
liabilities of a type described in any of clauses (a) through (e) hereof.
 
          8.1.5  Liens.  OpCo shall not, directly or indirectly, maintain, 
                 -----                                                     
create, incur, assume or permit to exist any Encumbrance (other than Permitted
Encumbrances and Encumbrances granted to the Lender to secure the Anticipated
Financing) on or with respect to any property or asset (including any document
or instrument in respect of goods or accounts receivable) of OpCo, whether now
owned or hereafter acquired, or any income or profits therefrom.

          8.1.6  Issuance of Interests.  OpCo shall not authorize or issue any
                 ---------------------                                        
interests in, or admit any members to, OpCo, other than BAM and HoldCo Sub.

          8.1.7  Contingent Obligations.  OpCo shall not, directly or 
                 ----------------------                               
indirectly, create or become or be liable with respect to any Contingent
Obligation except:

               (a) Contingent Obligations of OpCo arising under the BAM Assumed
Liabilities and successor liabilities thereto;

               (b) Contingent Obligations resulting from endorsement of
negotiable instruments for collection in the ordinary course of business;

                                      -43-
<PAGE>
 
               (c) Contingent Obligations under the Management Agreement, Build-
to-Suit Agreement and Global Lease;

For purposes of this Agreement, the term "Contingent Obligations" shall mean any
                                          ----------------------                
direct or indirect liability, contingent or otherwise (1) with respect to any
indebtedness, lease, dividend or other obligation of another if the primary
purpose or intent thereof is to provide assurance to the obligee of such
obligation of another that such obligation of another will be paid or
discharged, or that any agreements relating thereto will be complied with, or
that the holders of such obligations will be protected (in whole or in part)
against loss in respect thereof and (2) with respect to any letter of credit.
Contingent Obligations shall include with respect to OpCo, without limitation,
the direct or indirect guaranty, endorsement (otherwise than for the collection
or deposit in the ordinary course of business), co-making, discounting with
recourse or sale with recourse by OpCo,  the obligation to make take-or-pay or
similar payments if required regardless of non-performance by any other party or
parties to an agreement, and any liability of OpCo for the obligations of
another through any agreement (contingent or otherwise) (x) to purchase,
repurchase or otherwise acquire such obligation or any security therefor, or to
provide funds for the payment or discharge of such obligation (whether in the
form of loans, advances, stock purchases, capital contributions or otherwise),
and (y) to maintain the solvency or any balance sheet item, level of income or
financial condition of another, if in the case of any agreement described under
subclause (x) or (y) of this sentence, the primary purpose or intent thereof is
as described in the preceding sentence.

          8.1.8  Preservation of Existence.  OpCo shall preserve and maintain 
                 -------------------------                                    
its existence, rights, franchises and privileges as a limited liability company
under the laws of the State of Delaware and qualify and remain qualified as a
foreign limited liability company in each jurisdiction in which such
qualification is necessary or desirable in view of its business and operations
or the ownership or lease of its properties.

          8.1.9  Merger or Sale of Assets.  OpCo shall not merge or consolidate
                 ------------------------                                      
with, or sell, assign, lease or otherwise dispose of or voluntarily part with
the control of (whether in one transaction or in a series of transactions) a
material portion of its assets to any person (whether now owned or hereinafter
acquired) or sell, assign or otherwise dispose of (whether in one transaction or
in a series of transactions) any of its accounts receivable (whether now in
existence or hereinafter created) at a discount or with recourse, to any person,
except for sales or other dispositions of assets in the ordinary course of
business, or except as permitted under the terms of the Global Lease Agreement.

          8.1.10  Dealings with Affiliates.  OpCo shall not enter into any
                  ------------------------                                
transaction, including, without limitation, any loans or extensions of credit or
royalty agreements with any officer, director or member of OpCo or HoldCo or any
officer, director of Bidder or Bidder Member or holder of more than five percent
(5%) of the outstanding Bidder Common Stock, or any member of their respective
immediate families or any corporation or other entity directly or indirectly
controlled by one or more of such officers, directors or stockholders or members
of their immediate families except in the ordinary course of business and on
terms not less favorable to OpCo than it would reasonably expect to obtain in a
transaction between unrelated parties.

          8.1.11  Dividends; Distributions.  OpCo shall not declare or pay any
                 -------------------------                                   
dividend, or make any distribution or return of capital, or redeem any equity
interest or make any similar payments or transfer of property to its members
(excluding payments for goods or services) in amounts in excess of those amounts
which would otherwise be payable under the Management Agreement and then only to
the 

                                      -44-
<PAGE>
 
extent that such amounts had not been paid pursuant to the Management Agreement;
provided, however, that the consent of BAM shall not be required as a condition
to OpCo taking any of the aforesaid actions under this Section 8.1.11 if (a) BAM
has disposed of all of its percentage interest in HoldCo and (b)(i) there are no
further loans or other obligations outstanding under the Financing Documents,
(ii) all commitments in connection with the Financing Documents have been
terminated and (iii) no letters of credit issued under the Financing Documents
are outstanding.

      8.2 Post-Closing Covenants Related to HoldCo, HoldCo Sub and OpCo.  From
          -------------------------------------------------------------       
and after the Closing, HoldCo and HoldCo Sub shall, and Bidder Member will cause
each of HoldCo, HoldCo Sub and OpCo to, comply with each of the following
covenants, except as otherwise determined by the mutual consent of BAM and
Bidder Member.

          8.2.1  Conduct of Business.  HoldCo shall not engage in any line of
                 -------------------                                         
business except for the ownership of the membership interests in HoldCo Sub and
the Bidder Contributed Shares. HoldCo Sub shall not engage in any line of
business except for the business of acquiring or constructing, owning or
leasing, and maintaining and operating communications towers in the United
States and performing its obligations under the Management Agreement and
performing all business activities related thereto. HoldCo Sub shall not make
any investment in, or acquire any equity securities of, any Person other than
OpCo.

          8.2.2  Use of Proceeds.  HoldCo Sub shall use the proceeds of the
                 ---------------                                           
Anticipated Financing and the Bidder Contributed Cash as follows:  (i) to make
at Closing the Financing Distribution and the Contributed Cash Distribution; and
(ii) $50,000,000 of the Bidder Contributed Cash shall be retained in OpCo for
working capital and capital expenditure purposes.

          8.2.3  Solvency.  Each of HoldCo and HoldCo Sub shall not voluntarily
                 --------                                                      
take any action that would cause it to cease to be Solvent.
 
          8.2.4  Bankruptcy.  HoldCo and HoldCo Sub shall not voluntarily 
                 ----------                                               
dissolve or liquidate, shall not make a voluntary assignment for the benefit of
creditors, shall not file a petition in bankruptcy, shall not petition or apply
to any tribunal for any receiver or trustee, shall not commence any proceeding
relating to itself under any bankruptcy, reorganization, readjustment of debt,
dissolution or liquidation law or statute of any jurisdiction, shall not
indicate its consent to, approval of or acquiescence in any such proceeding and
shall use its best efforts to have discharged the appointment of any receiver of
or trustee for HoldCo or HoldCo Sub or any substantial part of their respective
properties.

          8.2.5  Indebtedness.  HoldCo and HoldCo Sub shall not, directly or
                 ------------                                               
indirectly, modify, amend or prepay the Anticipated Financing prior to the
seventh (7th) anniversary of the Closing. HoldCo shall not, directly or
indirectly, remain liable, create, incur, assume, guaranty, or otherwise become
or remain directly or indirectly liable with respect to any Indebtedness.
 
          8.2.6  Liens.  HoldCo shall not, directly or indirectly, maintain,
                 -----                                                      
create, incur, assume or permit to exist any Encumbrance (other than Permitted
Encumbrances and Encumbrances on the membership interests in HoldCo Sub granted
to the Lender to secure the Anticipated Financing) on or with respect to any
property or asset (including any document or instrument in respect of goods or
accounts receivable) of HoldCo, whether now owned or hereafter acquired, or any
income or profits therefrom.

                                      -45-
<PAGE>
 
          8.2.7  Contingent Obligations.  HoldCo shall not, directly or
                 ----------------------                                
indirectly, create or become or be liable with respect to any Contingent
Obligation.  Contingent Obligations shall include with respect to HoldCo,
without limitation, the direct or indirect guaranty, endorsement (otherwise than
for the collection or deposit in the ordinary course of business), co-making,
discounting with recourse or sale with recourse by HoldCo,  the obligation to
make take-or-pay or similar payments if required regardless of non-performance
by any other party or parties to an agreement, and any liability of HoldCo for
the obligations of another through any agreement (contingent or otherwise) (x)
to purchase, repurchase or otherwise acquire such obligation or any security
therefor, or to provide funds for the payment or discharge of such obligation
(whether in the form of loans, advances, stock purchases, capital contributions
or otherwise), and (y) to maintain the solvency or any balance sheet item, level
of income or financial condition of another, if in the case of any agreement
described under subclause (x) or (y) of this sentence, the primary purpose or
intent thereof is as described in the preceding sentence.

          8.2.8  Issuance of Interests.  Except pursuant to a transfer permitted
                 ---------------------                                          
by Section 9.1 or Section 9.2, HoldCo shall not authorize or issue any interests
in, or admit any members to, HoldCo, other than BAM and Bidder Member.  HoldCo
Sub shall not authorize or issue any interests in, or admit any members to,
HoldCo, other than HoldCo.

          8.2.9  Preservation of Existence.  Each of HoldCo and HoldCo Sub shall
                 -------------------------                                      
preserve and maintain its existence, rights, franchises and privileges as a
limited liability company under the laws of the State of Delaware and qualify
and remain qualified as a foreign limited liability company in each jurisdiction
in which such qualification is necessary or desirable in view of its business
and operations or the ownership or lease of its properties.

          8.2.10  Merger or Sale of Assets.  Neither HoldCo nor HoldCo Sub shall
                  ------------------------                                      
merge or consolidate with, or sell, assign, lease or otherwise dispose of or
voluntarily part with the control of (whether in one transaction or in a series
of transactions) a material portion of its assets to any person (whether now
owned or hereinafter acquired) or sell, assign or otherwise dispose of (whether
in one transaction or in a series of transactions) any of its accounts
receivable (whether now in existence or hereinafter created) at a discount or
with recourse, to any person, except for sales or other dispositions of assets
in the ordinary course of business.

          8.2.11  Dealings with Affiliates.  Neither HoldCo nor HoldCo Sub shall
                  ------------------------                                      
enter into any transaction, including, without limitation, any loans or
extensions of credit or royalty agreements with any officer, director or member
of HoldCo or HoldCo Sub or any officer, director of Bidder or Bidder Member or
holder of more than five percent (5%) of the outstanding Bidder Common Stock, or
any member of their respective immediate families or any corporation or other
entity directly or indirectly controlled by one or more of such officers,
directors or stockholders or members of their immediate families except in the
ordinary course of business and on terms not less favorable to HoldCo than it
would reasonably expect to obtain in a transaction between unrelated parties.

          8.2.12  Business Plan and Annual Budget.  On or before November 30 of
                  -------------------------------                              
each year, the managers of HoldCo shall, in consultation with BAM, develop a
business plan and budget for HoldCo (including HoldCo Sub and OpCo) ("Business
                                                                      --------
Plan") for the following calendar year of HoldCo (and HoldCo Sub and OpCo).  The
- ----                                                                            
Business Plan for the period between the Closing Date and December 31, 1999 is
attached hereto as 1 EXHIBIT 8.2.12.  Each subsequent Business Plan shall be
submitted to the 

                                      -46-
<PAGE>
 
members for review and, subject to the second following sentence, comment and
shall be adopted only with the mutual consent of BAM and Bidder Member. HoldCo
shall use commercially reasonable efforts to, and cause each of HoldCo Sub and
OpCo to, conduct their respective businesses in accordance with the then current
Business Plan.

     If by the first date of any year the proposed Business Plan for that year
has not been adopted, the Business Plan for such year shall be deemed to be the
expense portion of the Business Plan in effect for the preceding year increased,
at the discretion of Bidder Member, to an amount not to exceed the sum of:

          (a) the average operating cost per communications tower owned by OpCo
     (or of which it has the economic benefit) (the "OpCo Towers") based on the
                                                     -----------               
     most recent quarterly financial statements available as of the first day of
     the current year multiplied by 50% of the sum of (i) the aggregate number
     of OpCo Towers constructed, completed or otherwise acquired in the course
     of the prior year and (ii) the aggregate number of OpCo Towers projected to
     be constructed, completed or otherwise acquired in the current year in the
     Business Plan for the prior year; and

          (b) the sum of (x) with respect to all contractual price increases
     with respect to contracts and agreements to which OpCo is a party and all
     increases in Taxes with respect to OpCo Towers, the amount of such increase
     and (y) with respect to all other expense items in the previous year's
     budget, (A) the amount of such expenses multiplied by (B) the sum of 1 plus
     an amount equal to the percentage increase in the CPI during the previous
     year.

     If BAM and Bidder Member are unable to mutually agree on the Business Plan
for the year commencing January 1, 2000, the Business Plan for such year shall
be deemed to be the quotient of (a) the expense portion of the initial Business
Plan for the period ending December 31, 1999, increased as contemplated by the
foregoing sentence, multiplied by 365 (b) divided by the number of days elapsed
between the Closing Date and December 31, 1999 (including both the Closing Date
and December 31, 1999).

     Notwithstanding the foregoing, each Business Plan that is implemented
pursuant to the foregoing two paragraphs of this Section 8.2.12 because BAM and
Bidder Member are unable to mutually agree on the Business Plan must provide for
the payment by OpCo, prior to the allocation of revenues pursuant to such two
paragraphs, of: (i) any and all costs, expenses or payments reasonably
necessary to fulfill OpCo's obligations under the Global Lease Agreement; (ii)
any and all costs, expenses or payments reasonably necessary to fulfill OpCo's
obligations under the Build-to-Suit Agreement; (iii) any and all taxes of any
kind due and owing by OpCo; (iv) any payments or expenditures required under any
lease of real estate, grant of easement, right of way or similar agreement to
which OpCo is a party; (v) any and all costs, expenses or payments reasonably
necessary to fulfill OpCo's obligations under any lease or sublease of tower
space or real estate to any third party; (vi) insurance premiums (including
without limitation, any payments pursuant to premium financing) and/or
deductibles of OpCo; (vii) payments to third parties for equipment or any other
goods and services required to perform OpCo's obligations under existing
agreements including, without limitation, payments required to satisfy any
mechanics's liens; (viii) salaries, commissions, compensation, benefits, and
payments or obligations of a similar nature; and (ix) any and all costs,
expenses and payments required to comply with, or payable pursuant to any
applicable laws, rule, regulations, ordinances, permits or licenses.  Further,
any such Business Plan 

                                      -47-
<PAGE>
 
may have the effect of reducing amounts payable under the Management Agreement
so long as the Anticipated Financing remains outstanding.

          8.2.13  Certain Contracts.  Neither HoldCo, HoldCo Sub, or OpCo shall
                  -----------------                                            
enter into any contract, agreement or arrangement (whether written or oral),
other than agreements and contracts in force as of the date hereof and renewals
thereof, which (a) contains provisions restricting HoldCo, HoldCo Sub or OpCo or
any member thereof from competing in any business activity in any geographic
area, (b) contains provisions requiring HoldCo, HoldCo Sub, or OpCo or any
member thereof to deal exclusively with any third party with respect to
providing any goods, services or rights to or acquiring any goods or services or
rights from such third party, (c) contains provisions which are inconsistent
with the obligations of HoldCo, HoldCo Sub or OpCo under any Transaction
Document, or (d) provides for the purchase or sale of goods, services or rights
involving an amount in excess of $10,000,000 per year in any transaction or
series of similar transactions.

          8.2.14  Action as Members of HoldCo Sub.  HoldCo shall not give any
                  -------------------------------                            
consent, in its capacity as a member of HoldCo Sub, under Section 3.8 of the
HoldCo Sub Operating Agreement.

          8.2.15  Voting of Bidder Contributed Shares.  HoldCo shall not 
                  -----------------------------------                    
exercise any voting rights with respect to the Bidder Contributed Shares; and in
the absence of the mutual agreement of BAM and Bidder Member as to the exercise
of such voting rights, the Bidder Contributed Shares shall be voted on each
matter submitted to a vote of the shareholders of Bidder for and against such
matter in the same proportion as the vote of all other shares entitled to vote
thereon are voted (whether by proxy or otherwise) for and against such matter.

      8.3 Delivery of Financial Statements.  HoldCo shall, and Bidder Member
          --------------------------------                                  
covenants and agrees that it shall cause HoldCo to, deliver to BAM:

          (a)  within thirty (30) days of the end of each month, HoldCo shall
deliver to Bidder Member and BAM an unaudited income statement and schedule as
to the sources and application of funds for such month and an unaudited balance
sheet as of the end of such month, in reasonable detail and prepared in
accordance with GAAP (except as permitted by Form 10-Q under the Exchange Act),
with respect to each of HoldCo, HoldCo Sub and OpCo, together with an analysis
by management of HoldCo's financial condition and results of operations during
such period and explanation by management of any differences between such
condition or results and the budget and business plan for such period.

          (b) as soon as practicable, but in any event within ninety (90) days
after the end of each fiscal year of HoldCo, a consolidated income statement for
such fiscal year, a consolidated balance sheet of HoldCo, HoldCo Sub and OpCo as
of the end of such year, and a schedule as to the cash flow and changes in
members' equity for such year, such year-end financial reports to be in
reasonable detail, prepared in accordance with GAAP, and audited and certified
by HoldCo's independent public accountants;

          (c) as soon as practicable, but in any event within thirty (30) days
after the end of each of the first three (3) quarters of each fiscal year of
HoldCo, an unaudited consolidated profit or loss statement and schedule as to
consolidated cash flow for such fiscal quarter and an unaudited consolidated
balance sheet of HoldCo, HoldCo Sub and OpCo as of the end of such fiscal
quarter, in reasonable detail 

                                      -48-
<PAGE>
 
and prepared in accordance with GAAP (except as permitted by Form 10-Q under the
Exchange Act); and

          (d) such other information relating to the financial condition,
business, prospects or corporate affairs of HoldCo, HoldCo Sub and OpCo as BAM
may from time to time reasonably request.

      8.4 HoldCo, HoldCo Sub and OpCo Boards of Representatives.  Subject to the
          -----------------------------------------------------                 
terms and provisions of this Agreement, the Management Agreement, the HoldCo
Operating Agreement, the HoldCo-Sub Operating Agreement, the OpCo Operating
Agreement and the Global Lease, the policies, business and operations of each of
HoldCo, HoldCo Sub and OpCo shall be subject to the direction of a "Board of
                                                                    --------
Representatives" for each of HoldCo, HoldCo Sub and OpCo which shall meet not
- ---------------                                                              
less than once per calendar quarter.  For so long as BAM maintains ownership of
at least a five percent (5%) Percentage Interest in HoldCo, BAM shall have the
right to designate from time to time a number of members of the Board of
Representatives that is equal to the greater of (i) one member or (ii) the
number of members (rounded to the nearest whole number) which is equal to the
same percentage of all members of the Board of Representatives as the Percentage
Interest held by BAM.  BAM shall also have the right to designate one member of
each committee of the Board of Representatives that is created pursuant to the
provisions of the HoldCo Operating Agreement, the HoldCo-Sub Operating Agreement
or the OpCo Operating Agreement, which designee may or may not be a member of
the Board of Representatives. HoldCo, HoldCo Sub or OpCo, as appropriate, shall
promptly reimburse such BAM designees for any expenses incurred by them in
connection with their activities as members of the Board of Representatives.

      8.5 Covenants Are For Benefit of Members.  The provisions of Sections 8.1,
          ------------------------------------                                  
8.2, 8.3 and 8.4 are for the benefit of (a) BAM and Bidder Member (and their
respective permitted transferees), in their respective capacities as members of
HoldCo, (b) HoldCo, in its capacity as member of HoldCo Sub, and (c) BAM (and
its permitted transferees) and HoldCo Sub, in their respective capacities as
members of OpCo.

      8.6 Agreement Regarding Identified Employees.  From and after the Closing,
          ----------------------------------------                              
Bidder Member shall cause each of OpCo and HoldCo Sub to perform and observe the
respective terms, conditions and provisions of the Agreement Regarding
Identified Employees that are to be performed and observed by such party.


                                   ARTICLE 9

                 CERTAIN ANCILLARY ARRANGEMENTS OF THE PARTIES

      9.1 Restriction on Sales by Bidder.  Without the prior written consent of
          ------------------------------                                       
BAM, Bidder Member shall not, directly or indirectly, sell, assign, transfer,
pledge, hypothecate, mortgage or dispose of, by gift or otherwise, or in any way
encumber, the Bidder HoldCo Interest unless either (a) the transfer is made to
an entity of which Bidder or Bidder Member owns directly or indirectly all of
the voting power of the outstanding capital stock (provided that (x) such entity
executes an instrument reasonably satisfactory in form and substance to BAM
pursuant to which it agrees to be bound hereby and (y) Bidder (or its successor
by merger) shall not thereafter at any time cease to own directly or indirectly
less than all of the voting power of the outstanding capital stock of such
entity) or (b) Bidder Member has 

                                      -49-
<PAGE>
 
complied with the procedures described in this Article 9 and (i) the transfer is
made subject to the right of first refusal described in Section 9.3 hereof and
(ii) to the extent BAM does not exercise its right of first refusal described in
Section 9.3 hereof, the transfer is made subject to the right of participation
in sales described in Section 9.5(a) hereof. For purposes of the foregoing,
Bidder Member shall not be deemed to have indirectly transferred any of the
Bidder HoldCo Interest if Bidder or any other parent corporation of Bidder
Member is a party to any merger or consolidation transaction, whether or not
such parent corporation is the surviving entity in such merger. Any purported
transfer of the Bidder HoldCo Interest in violation of this Section 9.1 shall be
void.

      9.2 Restriction on Sales by BAM.  Without the prior written consent of
          ---------------------------                                       
Bidder Member, BAM shall not, directly or indirectly, sell, assign, transfer,
pledge, hypothecate, mortgage or dispose of, by gift or otherwise, or in any way
encumber, the BAM HoldCo Interest unless either (a) the transfer is made to any
entity or which either Bell Atlantic Corporation or BAM Inc. owns directly or
indirectly all of the voting power of the outstanding capital stock (provided
that (x) such entity executes an instrument reasonably satisfactory in form and
substance to Bidder Member pursuant to which it agrees to be bound hereby and
(y) Bell Atlantic Corporation or BAM (or the successor by merger to either)
shall not thereafter at any time cease to own directly or indirectly less than
all of the voting power of the outstanding capital stock of such entity), or (b)
BAM has complied with the procedures described in this Article 9 and (i) the
transfer is made subject to the right of first refusal described in Section 9.4
hereof or (ii) to the extent Bidder Member does not exercise its right of first
refusal described in Section 9.4 hereof, the transfer is made subject to the
right of participation in sales described in Section 9.5(b) hereof.  For
purposes of the foregoing, BAM shall not be deemed to have indirectly
transferred any of the BAM HoldCo Interest if Bell Atlantic Corporation or any
other parent corporation of BAM is a party to any merger or consolidation
transaction, whether or not such parent corporation is the surviving entity in
such merger.  Any purported transfer of the BAM HoldCo Interest in violation of
this Section 9.2 shall be void.

      9.3  BAM Right of First Refusal.
           -------------------------- 

          (a) If at any time Bidder Member wishes to sell all or any part of the
Bidder HoldCo Interest, Bidder Member shall submit a written offer to sell such
Bidder HoldCo Interest to BAM on terms and conditions, including price, not less
favorable to BAM than those on which the Bidder Member proposes to sell the
Bidder HoldCo Interest to any other purchaser (the "Bidder Offer").  The Bidder
                                                    ------------               
Offer shall disclose the identity of the proposed purchaser or transferee, the
percentage of the Bidder HoldCo Interest to be sold, the terms of the sale, any
amounts owed to Bidder Member with respect to the Bidder HoldCo Interest and any
other material facts relating to the sale. BAM shall respond to the Bidder Offer
as soon as practicable after receipt thereof, and in all events within thirty
(30) days after receipt thereof.  The Bidder Offer may be revoked at any time.
BAM shall have the right to accept the Bidder Offer as to all (but not less than
all) of the Bidder HoldCo Interest offered thereby. In the event that BAM shall
elect on a timely basis to purchase all (but not less than all) of the Bidder
HoldCo Interest covered by the Bidder Offer, BAM shall communicate in writing
such election to purchase to Bidder Member, which communication shall be
delivered by hand or mailed to Bidder Member at the address set forth in Section
11.9 below and shall, when taken in conjunction with the Bidder Offer, be deemed
to constitute a valid, legally binding and enforceable agreement for the sale
and purchase of the Bidder HoldCo Interest covered thereby; provided, however,
                                                            --------  ------- 
that Bidder Member may elect in its sole discretion to terminate such agreement
at any time prior to the closing of such sale and purchase, in which case such
Bidder HoldCo Interest shall again become subject to the requirements of a 

                                      -50-
<PAGE>
 
prior offer pursuant to this Section. In the event Bidder Member terminates any
such agreement prior to closing, Bidder Member shall be prohibited from
consummating a transaction for the sale and purchase of the Bidder HoldCo
Interest with the proposed purchaser or transferee for two (2) years from the
date of such termination, and shall be prohibited from consummating a
transaction for the sale and purchase of the Bidder HoldCo Interest with any
other party for six (6) months from the date of such termination. In the event
that any Bidder Offer includes any non-cash consideration, BAM may in its sole
discretion elect to pay a cash amount equal to the fair market value of such 
non-cash consideration in lieu of such non-cash consideration. The closing of
the sale and purchase contemplated by any agreement for the sale and purchase of
any portion of the Bidder HoldCo Interest entered into between BAM and Bidder
Member pursuant to this Section 9.3 shall be consummated within sixty (60) days
after the date that such agreement becomes valid, legally binding and
enforceable as aforesaid, subject to extension to the extent necessary to secure
required approvals or consents from Governmental Authorities. Each of BAM and
Bidder Member shall use its reasonable best efforts to obtain such required
approvals or consents from Governmental Authorities.

          (b) In the event that BAM does not purchase the Bidder HoldCo Interest
offered by Bidder Member pursuant to the Bidder Offer, such Bidder HoldCo
Interest not so purchased may be sold by the Bidder Member at any time within
ninety (90) days after the expiration of the Bidder Offer, subject to the
provisions of Section 9.5 below.  Any such sale shall be to the same proposed
purchaser or transferee, at not less than the price and upon other terms and
conditions, if any, not more favorable to the purchaser than those specified in
the Bidder Offer.  If such Bidder HoldCo Interest is not sold within such ninety
(90)-day period, it shall again become subject to the requirements of a prior
offer pursuant to this Section.  In the event that such Bidder HoldCo Interest
is sold pursuant to this Section to any purchaser other than BAM, such Bidder
HoldCo Interest shall continue to be subject to the restrictions imposed by this
Section 9.3 with the same effect as though such purchaser were Bidder Member for
purposes of this Section.

      9.4 Bidder Member's Right of First Refusal.
          -------------------------------------- 

          (a) If at any time BAM wishes to sell all or any part of the BAM
HoldCo Interest, BAM shall submit a written offer to sell such BAM HoldCo
Interest to Bidder Member on terms and conditions, including price, not less
favorable to Bidder Member than those on which BAM proposes to sell the BAM
HoldCo Interest, as the case may be, to any other purchaser (the "BAM Offer").
                                                                  ---------    
The BAM Offer shall disclose the identity of the proposed purchaser or
transferee, the percentage of the BAM HoldCo Interest to be sold, the terms of
the sale, any amounts owed to BAM with respect to the BAM HoldCo Interest and
any other material facts relating to the sale.   Bidder Member shall respond to
the BAM Offer as soon as practicable after receipt thereof, and in all events
within thirty (30) days after receipt thereof.  The BAM Offer may be revoked at
any time.  Bidder Member shall have the right to accept the BAM Offer as to all
(but not less than all) of the BAM HoldCo Interest offered thereby.  In the
event that Bidder Member elects on a timely basis to purchase all (but not less
than all) of the BAM HoldCo Interest covered by the BAM Offer, Bidder Member
shall communicate in writing such election to purchase to BAM, which
communication shall be delivered by hand or mailed to BAM at the address set
forth in Section 11.9 below and shall, when taken in conjunction with the BAM
Offer, be deemed to constitute a valid, legally binding and enforceable
agreement for the sale and purchase of the BAM HoldCo Interest covered thereby;
provided, however, that BAM may elect in its sole discretion to terminate such
- --------  -------                                                             
agreement at any time prior to the closing of such sale and purchase, in which
case such BAM HoldCo Interest shall again become subject to the requirements of
a prior offer pursuant to this 

                                      -51-
<PAGE>
 
Section. In the event BAM terminates any such agreement prior to closing, BAM
shall be prohibited from consummating a transaction for the sale and purchase of
the BAM HoldCo Interest with the proposed purchaser or transferee for two (2)
years from the date of such termination, and shall be prohibited from
consummating a transaction for the sale and purchase of the BAM HoldCo Interest
with any other party for six (6) months from the date of such termination. In
the event that any BAM Offer includes any non-cash consideration, Bidder Member
may in its sole discretion elect to pay a cash amount equal to the fair market
value of such non-cash consideration in lieu of such non-cash consideration. The
closing of the sale and purchase contemplated by any agreement for the sale and
purchase of any portion of the BAM HoldCo Interest entered into between BAM and
Bidder Member pursuant to this Section 9.4 shall be consummated within sixty
(60) days after the date that such agreement becomes valid, legally binding and
enforceable as aforesaid, subject to extension to the extent necessary to secure
required approvals or consents from Governmental Authorities. Each of BAM and
Bidder Member shall use its reasonable best efforts to obtain such required
approvals or consents from Governmental Authorities.

          (b) In the event that Bidder Member does not purchase the BAM HoldCo
Interest offered by BAM pursuant to the BAM Offer, such BAM HoldCo Interest not
so purchased may be sold by BAM at any time within ninety (90) days after the
expiration of the BAM Offer.  Any such sale shall be to the same proposed
purchaser or transferee, at not less than the price and upon other terms and
conditions, if any, not more favorable to the purchaser than those specified in
the BAM Offer.  If such BAM HoldCo Interest is not sold within such ninety (90)-
day period, such BAM HoldCo Interest shall continue to be subject to the
requirements of a prior offer pursuant to this Section.  In the event that such
BAM HoldCo Interest is sold pursuant to this Section to any purchaser other than
Bidder Member, such portion of the BAM HoldCo Interest shall continue to be
subject to the restrictions imposed by this Section 9.4 with the same effect as
though such purchaser were BAM for purposes of this Section.

      9.5 Right of Participation in Sales.
          ------------------------------- 

          (a) If at any time Bidder Member wishes to sell all or any portion of
the Bidder HoldCo Interest to any person or entity other than BAM (the "Bidder
                                                                        ------
HoldCo Interest Purchaser"), BAM shall have the right to offer for sale to the
- -------------------------                                                     
Bidder HoldCo Interest Purchaser, as a condition of such sale by Bidder Member,
at the same price and on the same terms and conditions as involved in such sale
by Bidder Member, the same proportion of the BAM HoldCo Interest as the proposed
sale represents with respect to the Bidder HoldCo Interest.  BAM shall notify
Bidder Member of such intention as soon as practicable after receipt of the
Bidder Offer made pursuant to Section 9.3, and in all events within thirty (30)
days after receipt thereof.  In the event that BAM elects to participate in such
sale by Bidder Member, BAM shall communicate such election to Bidder Member,
which communication shall be delivered by hand or mailed to the Bidder Member at
the address set forth in Section 11.9 below.  Bidder Member and BAM shall sell
to the Bidder HoldCo Interest Purchaser the Bidder HoldCo Interest proposed to
be sold by Bidder Member and the BAM HoldCo Interest proposed to be sold by BAM,
at not less than the price and upon other terms and conditions, if any, not more
favorable to the Bidder HoldCo Interest Purchaser than those in the Bidder Offer
provided by  Bidder Member under Section 9.3 above; provided, however, that any
purchase of less than all of the Bidder HoldCo Interest and the BAM HoldCo
Interest by the Bidder HoldCo Interest Purchaser shall be made from Bidder
Member and BAM pro rata based upon the amount offered to be sold by each.  Any
portion of the Bidder HoldCo Interest and the BAM HoldCo Interest sold pursuant
to this Section 9.5 shall no longer be subject to the restrictions imposed by
Sections 9.3 or 9.4 or entitled to the benefit of this Section 9.5(a).

                                      -52-
<PAGE>
 
          (b) If at any time BAM wishes to sell all or any portion of the BAM
HoldCo Interest to any person or entity other than Bidder Member or Bell
Atlantic Corporation or any other Affiliate of BAM (the  "BAM HoldCo Interest
                                                          -------------------
Purchaser"), Bidder Member shall have the right to offer for sale to the BAM
- ---------                                                                   
HoldCo Interest Purchaser, as a condition of such sale by BAM, at the same price
and on the same terms and conditions as involved in such sale by BAM, the same
proportion of the Bidder HoldCo Interest as the proposed sale represents with
respect to the BAM HoldCo Interest.  Bidder Member shall notify BAM of such
intention as soon as practicable after receipt of the BAM Offer made pursuant to
Section 9.4, and in all events within thirty (30) days after receipt thereof.
In the event that Bidder Member elects to participate in such sale by BAM,
Bidder Member shall communicate such election to BAM, which communication shall
be delivered by hand or mailed to BAM at the address set forth in Section 11.9
below.  BAM and Bidder Member shall sell to the BAM HoldCo Interest Purchaser
the BAM HoldCo Interest proposed to be sold by BAM and the Bidder HoldCo
Interest proposed to be sold by Bidder Member, at not less than the price and
upon other terms and conditions, if any, not more favorable to the BAM HoldCo
Interest Purchaser than those in the BAM Offer provided by BAM under Section 9.4
above; provided, however, that any purchase of less than all of the BAM HoldCo
Interest and the Bidder HoldCo Interest by the BAM HoldCo Interest Purchaser
shall be made from BAM and Bidder Member pro rata based upon the amount offered
to be sold by each.  Any portion of the BAM HoldCo Interest and the Bidder
HoldCo Interest sold pursuant to this Section 9.5 shall no longer be subject to
the restrictions imposed by Sections 9.3 or 9.4 or entitled to the benefit of
this Section 9.5(b).

      9.6 Transfer of BAM Retained Interest.  Without the prior written consent
          ---------------------------------                                    
of Bidder, BAM shall not, directly or indirectly, sell, assign, transfer, pledge
(except the pledge of the BAM Retained Interest to the Lender to secure the
Anticipated Financing), hypothecate, mortgage or dispose of, by gift or
otherwise, or in any way encumber, the BAM Retained Interest unless either (a)
the transfer is made to an entity of which either BAM or Bell Atlantic
Corporation owns directly or indirectly all of the voting power of the
outstanding capital stock, or (b) the transfer is made in connection with a
merger or consolidation transaction to which BAM or Bell Atlantic Corporation is
a party.

      9.7 Nomination of Director.  From and after the distribution of the Bidder
          ----------------------                                                
Contributed Shares to BAM in connection with the dissolution of HoldCo, as
provided in the HoldCo Operating Agreement, upon the written request of BAM,
Bidder shall, so long as BAM or its affiliates own at such time at least 7.5% of
the outstanding Bidder Common Stock, expand its Board of Directors by one person
and shall elect to the vacancy so created on Bidder's Board of Directors one
designee of BAM. Thereafter, for so long as BAM or its affiliates own at least
7.5% of the outstanding Bidder Common Stock, at each annual meeting of the
stockholders of Bidder, Bidder shall use its best efforts to nominate one
designee of BAM for election as a director of Bidder if after such meeting no
designee of BAM would hold office as a director of Bidder absent the election of
a BAM designee as a director of Bidder at the meeting.  Subject to the fiduciary
duties of the Board of Directors of Bidder, Bidder shall use reasonable efforts
to solicit from the stockholders of Bidder eligible to vote for the election of
directors proxies in favor of the nominees selected in accordance with this
Section 9.7.

      9.8 Registration Rights.  Bidder hereby grants to BAM and its successors
          -------------------                                                 
and assigns the registration rights contained in 1 EXHIBIT 9.8 hereto which are
hereby incorporated by reference in this Agreement with the same effect as if
set forth herein in their entirety.

      9.9 Specific Performance.  Each of the Parties specifically acknowledges
          --------------------                                                
and agrees that the remedy at law for any breach of the covenants contained in
this Article 9 will be inadequate and that any 

                                      -53-
<PAGE>
 
other Party, in addition to any other relief available to them, shall be
entitled to temporary and permanent injunctive relief without the necessity of
proving actual damages.


                                  ARTICLE  10

                                INDEMNIFICATION

      10.1 Indemnification by BAM.
            ---------------------- 

          (a) From and after the Closing, BAM shall indemnify and hold harmless
OpCo, its successors and assigns and its officers, directors, employees, agents
and any Person who controls any of the foregoing within the meaning of the
Securities Act (each, an "Indemnified OpCo Party") from and against any
                          ----------------------                       
liabilities, claims, causes of action, demands, judgments, losses, costs,
damages or expenses whatsoever (including reasonable attorneys', consultants'
and other professional fees and disbursements of every kind, nature and
description incurred by such Indemnified OpCo Party in connection therewith)
(collectively, "Losses") that such Indemnified OpCo Party may sustain, suffer or
                ------                                                          
incur and that result from, arise out of or relate to (i) any breach of any of
the representations, warranties, covenants or agreements of BAM contained in
this Agreement or (ii) any BAM Retained Liability.

          (b) OpCo acknowledges and agrees that BAM shall not have any Liability
under any provision of this Agreement for any Loss to the extent that such Loss
relates to the failure to act or any action taken by OpCo or any other Person
(other than BAM or any of its Affiliates in breach of this Agreement) or any
Transaction Document after the Closing Date.

          (c) OpCo shall take and shall cause its Affiliates to take all
reasonable steps to mitigate any Loss upon becoming aware of any event which
would reasonably be expected to, or does, give rise thereto, including incurring
costs only to the minimum extent necessary to remedy the breach which gives rise
to the Loss.

          (d) Nothing herein shall be deemed to limit or restrict in any manner
any rights or remedies which OpCo has or may have, at law, in equity or
otherwise, against BAM based on a willful misrepresentation or willful breach of
any warranty, covenant or agreement by BAM hereunder.

      10.2 Indemnification by Bidder.
           ------------------------- 

          (a) From and after the Closing, Bidder shall indemnify and hold
harmless BAM, its successors and assigns and its officers, directors, employees,
agents and any Person who controls any of the foregoing within the meaning of
the Securities Act or the Exchange Act (each, an "Indemnified BAM Party") from
                                                  ---------------------       
and against any Losses that such Indemnified BAM Party may sustain, suffer or
incur and that result from, arise out of or relate to any breach of any of the
representations, warranties, covenants or agreements of Bidder contained in this
Agreement.

          (b) BAM shall take and cause its Affiliates to take all reasonable
steps to mitigate any Loss upon becoming aware of any event which would
reasonably be expected to, or does, give rise thereto, including incurring costs
only to the minimum extent necessary to remedy the breach which gives rise to
the Loss.

                                      -54-
<PAGE>
 
          (c) Nothing herein shall be deemed to limit or restrict in any manner
any rights or remedies which BAM has or may have, at law, in equity or
otherwise, against Bidder and Bidder Member based on a willful misrepresentation
or willful breach of any, covenant or agreement of warranty by Bidder and Bidder
Member hereunder.

      10.3 Indemnification by OpCo.
           ----------------------- 

          (a) From and after the Closing, OpCo shall indemnify and hold harmless
each Indemnified BAM Party from and against any Losses that such Indemnified BAM
Party may sustain, suffer or incur and that result from, arise out of or relate
to (i) any BAM Assumed Liability or (ii) events occurring after the Closing Date
in connection with OpCo's business, including, without limitation, the use,
ownership, possession or operation of the BAM Contributed Assets from and after
the Closing Date.

          (b) BAM shall take and cause its Affiliates to take all reasonable
steps to mitigate any Loss upon becoming aware of any event which would
reasonably be expected to, or does, give rise thereto, including incurring costs
only to the minimum extent necessary to remedy the breach which gives rise to
the Loss.

          (c) Nothing herein shall be deemed to limit or restrict in any manner
any rights or remedies which BAM has or may have, at law, in equity or
otherwise, against OpCo based on a willful breach of any covenant or agreement
hereunder.

      10.4 Indemnification by Bidder Member.
           -------------------------------- 

          (a) From and after the Closing, Bidder Member shall indemnify and hold
harmless each Indemnified BAM Party from and against any Losses that such
Indemnified BAM Party may sustain, suffer or incur and that result from, arise
out of or relate to any breach of any of the representations, warranties,
covenants or agreements of Bidder Member contained in this Agreement.

          (b) BAM shall take and cause its Affiliates to take all reasonable
steps to mitigate any Loss upon becoming aware of any event which would
reasonably be expected to, or does, give rise thereto, including incurring costs
only to the minimum extent necessary to remedy the breach which gives rise to
the Loss.

          (c) Nothing herein shall be deemed to limit or restrict in any manner
any rights or remedies which BAM has or may have, at law, in equity or
otherwise, against Bidder and Bidder Member based on a willful misrepresentation
or willful breach of any, covenant or agreement of warranty by Bidder and Bidder
Member hereunder.

      10.5 Procedure for Claims.
           -------------------- 

          (a) Any Person that desires to seek indemnification under any
provision of this Section 10 or any other provision of this Agreement providing
for indemnification (each, an "Indemnified Party") shall give notice (a "Claim
                               -----------------                         -----
Notice") to each party responsible or alleged to be responsible for
- ------                                                             
indemnification hereunder (an "Indemnitor") prior to any applicable Expiration
                               ----------                                     
Date specified below.  Such Claim Notice shall briefly explain the nature of the
claim and the parties known to be involved, and shall specify the amount
thereof.  If the matter to which a claim relates shall not have 

                                      -55-
<PAGE>
 
been resolved as of the date of the Claim Notice, the Indemnified Party shall
estimate the amount of the claim in the Claim Notice, but also specify therein
that the claim has not yet been liquidated (an "Unliquidated Claim"). If an
                                                ------------------ 
Indemnified Party gives a Claim Notice for an Unliquidated Claim, the
Indemnified Party shall also give a second Claim Notice (the "Liquidated Claim
                                                              ----------------
Notice") within sixty (60) days after the matter giving rise to the claim 
- ------
becomes finally resolved, and the Second Claim Notice shall specify the amount
of the claim. Any failure to give a Claim Notice in a timely manner pursuant to
this Section 10.5(a) shall not limit the obligation of the Indemnitor under this
Section 10, except to the extent such Indemnitor is prejudiced thereby and
except as otherwise provided in Section 10.8. Each Indemnitor to which a Claim
Notice is given shall respond to any Indemnified Party that has given a Claim
Notice (a "Claim Response") within thirty (30) days (the "Response Period") 
           --------------                                 ---------------
after the later of (a) the date that the Claim Notice is given or (b) if a Claim
Notice is first given with respect to an Unliquidated Claim, the date on which
the Liquidated Claim Notice is given. Any Claim Notice or Claim Response shall
be given in accordance with the notice requirements hereunder, and any Claim
Response shall specify whether or not the Indemnitor giving the Claim Response
disputes the claim described in the Claim Notice. If any Indemnitor fails to
give a Claim Response within the Response Period, such Indemnitor shall be
deemed not to dispute the claim described in the related Claim Notice. If any
Indemnitor elects not to dispute a claim described in a Claim Notice, whether by
failing to give a timely Claim Response or otherwise, then the amount of such
claim shall be conclusively deemed to be an obligation of such Indemnitor. If
the Indemnitor notifies the Indemnified Party in the Claim Response that it
disputes the claim made by the Indemnified Party, then the Indemnitor and the
Indemnified Party shall endeavor in good faith for a period of thirty (30) days
to settle and compromise such claim, and if unable to agree on any settlement or
compromise, such claim for indemnification shall be settled by arbitration in
accordance with the provisions of Section 11.1 of this Agreement, and any Loss
established by reason of such settlement, compromise or arbitration shall be
deemed to be finally determined.

          (b) Any Loss that is finally determined in the manner set forth in
Section 10.5(a) shall be paid by the Indemnitor to the Indemnified Party within
thirty (30) days after (a) the last day of the Claim Response Period or (b) the
date on which such settlement, compromise or arbitration described in the last
sentence of Section 10.5(a) shall have been deemed to be finally determined, as
the case may be.  If any Indemnitor fails to pay all or part of any
indemnification obligation when due, then such Indemnitor shall also be
obligated to pay to the applicable Indemnified Party interest on the unpaid
amount for each day during which the obligation remains unpaid at an annual rate
equal to the Prime Rate plus two percent (2%) per annum, and the Prime Rate in
effect on the first (1st) business day of each calendar quarter shall apply to
the amount of the unpaid obligation during such calendar quarter.

      10.6 Certain Limitations.  Notwithstanding anything to the contrary in 
           -------------------                                               
this Agreement, except as provided below in this Section 10.6, (i) OpCo shall be
entitled to indemnification hereunder with respect to the breach of a
representation, warranty, covenant or agreement by BAM only when the aggregate
of all Losses to such Indemnified OpCo Parties from all such breaches exceeds on
a cumulative basis $7,500,000 (the "Deductible Amount"), and then only to the
                                    -----------------                        
extent of such excess amount, and (ii) BAM shall not be liable under this
Agreement for an aggregate amount in excess of $195,000,000 (the "Maximum
                                                                  -------
Indemnification").  The foregoing limitations with respect to the Maximum
- ---------------                                                          
Indemnification shall not apply, however, to any willful misrepresentation or
willful breach of warranty by BAM.    Notwithstanding the other provisions of
this Section 10, no Indemnified OpCo Party shall be entitled to seek
indemnification under this Section 10 for any individual fact, circumstance,
condition or occurrence that results in a breach of a representation or warranty
that involves Losses of less than $25,000.  Notwithstanding the foregoing
provisions of this Section 10.6, the 

                                      -56-
<PAGE>
 
indemnification of OpCo by BAM for BAM Retained Liabilities pursuant to Section
10.1(a)(ii) shall not be subject to the Deductible Amount or any other
deductible, the Maximum Indemnification limitation, or the limitation under the
immediately preceding sentence.

      10.7 Non-Third Party Claims.  In no event shall BAM and its Affiliates,
           ----------------------                                            
Bidder and its Affiliates, or Bidder Member and its Affiliates be liable to the
other party hereto for any special, incidental or consequential damages incurred
by such other party and caused by or arising out of any breach of any
representation, warranty, covenant or agreement contained in this Agreement or
the other Transaction Documents.

      10.8 Claims Period.  Any claim for indemnification under this Section 10
           -------------                                                      
shall be made by giving a Claim Notice under Section 10.5 on or before the
applicable "Expiration Date" specified below in this Section 10.8, if any, or
            ---------------                                                  
the claim under this Section 10 shall be invalid.  The following claims shall
have the following respective "Expiration Dates": (i) June 30, 2000, with
                               ----------------                          
respect to any claims that are not specified in the succeeding clause (ii); or
(ii) the date on which the applicable statute of limitations expires with
respect to any claim for Losses related to a (x) breach of any covenant or
agreement or (y) a breach of warranty or misrepresentation under Sections
5.1.1, 5.1.2, 5.2.1, 5.2.2, 5.3.1, 5.3.2 and 5.3.11.  Notwithstanding the
foregoing or any other provision of this Agreement to the contrary, there shall
be no Expiration Date with respect to (A) any claim by an Indemnified OpCo Party
for Losses related to any BAM Retained Liability, or (B) any claim by an
Indemnified BAM Party for Losses related to any BAM Assumed Liability .  So long
as an Indemnified Party gives a Claim Notice for an Unliquidated Claim on or
before the applicable Expiration Date, if any, such Indemnified Party shall be
entitled to pursue its rights to indemnification regardless of the date on which
such Indemnified Party gives the related Liquidated Claim Notice.

      10.9 Third Party Claims.  An Indemnified Party that desires to seek
           ------------------                                            
indemnification under any part of this Section 10 with respect to any actions,
suits or other administrative or judicial proceedings (each, an "Action") that
                                                                 ------       
may be instituted by a third party shall give each Indemnitor prompt notice of a
third party's institution of such Action and tender defense of such Action to
the Indemnitor, with counsel reasonably satisfactory to such Indemnified Party;
provided, however, that such Indemnified Party shall have the right to
participate at its own expense in the defense of such Action; and provided,
further, that the Indemnitor shall not consent to the entry of any judgment or
enter into any settlement, that (x) does not include as an unconditional term
thereof the giving by the claimant or plaintiff to such Indemnified Party of a
complete release therefrom, or (y) provides for injunctive or other non-monetary
relief affecting the Indemnified Party, except with the written consent of such
Indemnified Party (which consent shall not be unreasonably withheld, delayed or
conditioned).  The Indemnified Party shall render all assistance and cooperation
to the Indemnitor (at Indemnitor's sole expense) which the Indemnitor may
request in defense of any such Action including, without limitation, the making
of witnesses and documents available for depositions, interrogatories and court
proceedings. Any failure to give prompt notice and to tender the defense of an
Action pursuant to this Section 10.9 shall not bar an Indemnified Party's right
to claim indemnification under this Section 10, except to the extent that an
Indemnitor shall have been harmed by such failure.

      10.10 Effect of Investigation or Knowledge.  Except as otherwise provided
            ------------------------------------                               
herein, all covenants, agreements, representations and warranties made herein or
in any agreement, instrument or certificate delivered pursuant to this Agreement
shall not be deemed to be waived or otherwise affected by any investigation at
any time made by or on behalf of any party hereto.  No claim for a breach of

                                      -57-
<PAGE>
 
representation or warranty shall be made by any Indemnified OpCo Party under
Section 10.1(a) or any Indemnified BAM Party under Sections 10.2 (a), 10.3(a) or
10.4(a) if (i) such claim is based on an event occurring prior to the Closing
(whether or not also occurring prior to the date of this Agreement), (ii) either
(a) such event was disclosed by BAM, Bidder or Bidder Member, as the case may
be, prior to the Closing in a writing which describes such event in reasonable
detail or (b) Bidder, Bidder Member or BAM, as the case may be, had actual
knowledge of such event or such misrepresentation or breach of warranty prior to
the Closing, and (iii) the Closing occurs.

      10.11 Losses Net of Insurance, Etc.  The amount of any Loss for which
            -----------------------------                                  
indemnification is provided under this Agreement shall be net of (i) any tax
benefit (such as a deduction, credit or deferral) actually realized from any
Loss, (ii) any amounts recovered by the Indemnified Party pursuant to any
indemnification by or indemnification agreement with any third party, and (iii)
any insurance proceeds or other cash receipts or sources of reimbursement
received as an offset against such Loss.  Each of OpCo and BAM shall make any
claims for indemnification from a third party or insurance proceeds available to
offset against such Loss and for which it will seek indemnification hereunder,
and to pursue such claims in good faith.  If the amount to be netted hereunder
from any Loss is determined after payment by the Indemnitor of any amount
otherwise required to be paid to an Indemnified Party pursuant to this Section
10.11, the Indemnified Party shall repay to the Indemnitor, promptly after such
determination, any amount that the Indemnitor would not have had to pay pursuant
to this Section 10.11 had such determination been made at the time of such
payment.

      10.12 Sole Remedies.  Subject to the provisions of Sections 10.1(c),
            -------------                                                 
10.2(c), 10.3(c) and 10.4(c), the indemnification provisions set forth in this
Section 10 constitute the sole and exclusive post-Closing remedies of the
parties hereto with respect to Losses arising out of or relating to this
Agreement, and shall preclude the assertion after the Closing  by any party of
any other rights, or the seeking of any other remedies against any other party
for claims arising out of or relating to this Agreement.


                                   ARTICLE 11

                                 MISCELLANEOUS

      11.1 Dispute Resolution.  In the case of any dispute, controversy or claim
           ------------------                                                   
between or among the parties hereto related to this Agreement or the
transactions contemplated hereby or the other documents referred to herein,
except for disputes related to obtaining the equitable remedies of specific
performance, an injunction or a restraining order (a "Dispute"), the parties
                                                      -------               
will use the procedures set forth in this Section 11.1, in lieu of any party
pursuing other available remedies and as the sole remedy, to resolve the
Dispute.

          11.1.1  Submission to Arbitration.  Any Dispute will be settled by
                  -------------------------                                 
arbitration before three arbitrators in accordance with the Rules of the
American Arbitration Association ("AAA") then in effect and as modified by this
                                   ---                                         
Section 11.1 or by further agreement of the parties.  In addition to what is
allowed by the Rules of the AAA, discovery may be conducted according to the
Federal Rules of Civil Procedure, to be enforced by the AAA, and if necessary,
by a court having jurisdiction.  Any such arbitration will be conducted in New
York, New York, unless otherwise agreed by BAM and Bidder Member.  The
arbitrators will be selected from a panel of persons (such as retired jurists,
distinguished legal or business professionals, and similar persons)
knowledgeable in the specific areas which may be 

                                      -58-
<PAGE>
 
relevant to the claim, who have had more than ten (10) years of relevant
experience in such areas, who have previously acted as arbitrators, and who are
generally held in the highest regard among professionals in fields or businesses
related or pertinent to such area. Judgment upon the award rendered by the
arbitrators may be entered pursuant to applicable arbitration statutes.

          11.1.2 Authority of Arbitrators.  The arbitrators will have no
                 ------------------------                               
authority to award punitive damages nor any other damages not measured by the
prevailing party's actual damages, and may not, in any event, make any ruling,
finding or award that does not conform to the terms and conditions of this
Agreement.

          11.1.3 Confidentiality.  Neither the parties hereto nor the
                 ---------------                                     
arbitrators may disclose the existence or results of any arbitration under this
Agreement or any evidence presented during the course of the arbitration without
the prior written consent of the parties, other than by entry of a judgment upon
any arbitration award.

          11.1.4 Cost of Arbitration.  The arbitrators will have the authority
                 -------------------                                          
to award to the prevailing party its attorneys' fees and costs incurred in any
arbitration.  Absent any such award, each party will bear its own costs incurred
in the arbitration.  If any party hereto refuses to submit to arbitration any
Dispute required to be submitted to arbitration pursuant to this Section 11.1,
and instead commences any other proceeding, including, without limitation,
litigation (except to the extent otherwise expressly provided in this
Agreement), then the party who seeks enforcement of the obligation to arbitrate
will be entitled to its attorneys' fees and costs incurred in any such
proceeding.

      11.2 Bidder's Reasonable Best Efforts Regarding Bidder Member's
           ----------------------------------------------------------
Performance.  For so long as Bidder Member is a direct or indirect subsidiary of
Bidder, Bidder will use its reasonable best efforts to cause Bidder Member to
timely and completely observe and perform all of its agreements, covenants and
obligations under this Agreement and all of the other Transaction Documents and
all renewals, modifications, amendments and extensions thereof; provided,
                                                                -------- 
however, that in no event shall this Section 11.2 obligate Bidder to make any
- -------                                                                      
capital contributions or loan or otherwise provide any financial assistance to,
or on behalf of, Bidder Member.

      11.3 Survival of Representations and Warranties.  All representations and
           ------------------------------------------                          
warranties made by the parties in this Agreement or pursuant hereto shall
survive the Closing until the Expiration Date.

      11.4 Transfer Taxes.  BAM and Bidder Member shall each pay one-half of all
           --------------                                                       
state and local sales, documentary and other transfer Taxes, if any, due as a
result of the contribution, purchase, sale or transfer of the BAM Contributed
Assets hereunder.

      11.5 Termination.
           ----------- 

          (a) Anything herein or elsewhere to the contrary notwithstanding, this
Agreement may be terminated by written notice of termination at any time before
the Closing Date only as follows:

               (i) by mutual consent of Bidder and BAM;

                                      -59-
<PAGE>
 
               (ii) by BAM, upon written notice to Bidder given at any time
     after June 30, 1999 (or such later date as shall have been specified in a
     writing authorized on behalf of Bidder and BAM) if all of the conditions
     precedent set forth in Article 7 hereof have not been met;

               (iii)  by Bidder, upon written notice to BAM given at any time
     after June 30, 1999 (or such later date as shall have been specified in a
     writing authorized on behalf of Bidder and BAM) if all of the conditions
     precedent set forth in Article 7 hereof have not been met;

               (iv) by Bidder at any time prior to the Closing if BAM shall have
     breached any of its representations, warranties or other obligations under
     this Agreement in any respect which would have a material and adverse
     effect on either (A) the Contributed BAM Assets and Assumed BAM Liabilities
     taken as a whole, or (B) on the ability of BAM to consummate the
     transactions contemplated hereby and such breach shall not have been cured
     within thirty (30) days after notice of such breach; or

               (v) by BAM at any time prior to the Closing if Bidder or Bidder
     Member shall have breached any of its representations, warranties or other
     obligations under this Agreement in any material respect and such breach
     shall not have been cured within thirty (30) days after notice of such
     breach.

          (b) In the event of the termination and abandonment hereof pursuant to
the provisions of this Section 11.5, this Agreement (except for Sections 5.1.15,
5.3.4, 6.1.6, 6.1.7, 6.2.4, 6.2.6 and 11.6 which shall continue) shall become
void and have no effect, without any liability on the part of any of the parties
or their directors, officers, stockholders, partners or representatives in
respect of this Agreement, unless the termination was the result of the
representations and warranties of a party being materially incorrect when made
or the material breach by such party of a covenant hereunder in which event the
party whose representations and warranties were incorrect or who breached such
covenant shall be liable to the other party for all costs and expenses of the
other party in connection with the preparation, negotiation, execution and
performance of this Agreement.

      11.6 Expenses.  Except as otherwise provided in this Agreement, each party
           --------                                                             
hereto shall pay its own expenses incidental to the preparation of this
Agreement, the carrying out of the provisions of this Agreement and the
consummation of the transactions contemplated hereby.

      11.7 Contents of Agreement; Parties in Interest; etc.  This Agreement and
           -----------------------------------------------                     
the other Transaction Documents set forth the entire understanding of the
parties hereto with respect to the transactions contemplated hereby.  This
Agreement shall not be amended or modified except by written instrument duly
executed by each of the parties hereto.  Any and all previous agreements and
understandings between or among the parties regarding the subject matter hereof,
whether written or oral, are superseded by this Agreement and the other
Transaction Documents.  Any term or provision of this Agreement, or any breach
thereof, may be waived at any time by the party entitled to the benefit thereof
by a written instrument duly executed by such party; provided, however, that any
                                                     --------  -------          
waiver by any party of a breach of any term or provision of this Agreement shall
not operate or be construed as a waiver of any subsequent breach, whether or not
similar, unless such waiver specifically states that it is to be construed as a
continuing waiver.

                                      -60-
<PAGE>
 
      11.8 Assignment and Binding Effect.  This Agreement may not be assigned by
           -----------------------------                                        
any party hereto without the prior written consent of the other parties,
provided that (i) BAM may assign its rights hereunder to any other wholly-owned
(direct or indirect) subsidiary of BAM or Bell Atlantic Corporation or to any
transferee of its entire remaining BAM HoldCo Interest, in each case, in
compliance with Section 9.2, and (ii) each of Bidder and Bidder Member may
assign any of its rights hereunder to any wholly-owned (direct or indirect)
subsidiary of Bidder Member or Bidder or to any transferee of its entire
remaining Bidder HoldCo Interest, in each case, in compliance with Section 9.1.
No such assignment shall relieve BAM, Bidder or Bidder Member of their
respective obligations hereunder except that in connection with a transfer by
either Bidder Member or BAM of its entire remaining Bidder HoldCo Interest or
BAM HoldCo Interest, respectively, made in accordance with the provisions of
Article 9, the transferring party shall be relieved only of its obligations
under Articles 8 and 9 of this Agreement.  For purposes of the foregoing, a
transfer by merger by Bidder or BAM (whether or not Bidder or BAM is the
surviving corporation), or any direct or indirect parent corporation of Bidder
or BAM, shall not be deemed to be an assignment for purposes of this Section
11.8.  Subject to the foregoing, all of the terms and provisions of this
Agreement shall be binding upon and inure to the benefit of and be enforceable
by the permitted successors and assigns of BAM, Bidder and Bidder Member.  All
references herein to any party shall be deemed to include any successor to such
party, including any corporate successor.

      11.9 Notices.  All notices, consents or other communications required or
           -------                                                            
permitted to be given under this Agreement shall be in writing and shall be
deemed to have been duly given when delivered personally, delivery charges
prepaid, or three (3) business days after being sent by registered or certified
mail (return receipt requested), postage prepaid, or one (1) business day after
being sent by a nationally recognized express courier service, postage or
delivery charges prepaid, to the parties at their respective addresses stated
below.  Notices may also be given by prepaid telegram or facsimile and shall be
effective on the date transmitted if confirmed within twenty-four (24) hours
thereafter by a signed original sent in the manner provided in the preceding
sentence.  BAM shall also be furnished copies of any written notices exchanged
hereunder by Bidder or Bidder Member with either HoldCo, HoldCo Sub or OpCo.
Any party may change its address for notice and the address to which copies must
be sent by giving notice of the new address to the other parties in accordance
with this Section 11.9, except that any notice of such change of address shall
not be effective unless and until received.

          (a)  If to BAM:

               Bell Atlantic Mobile
               180 Washington Valley Road
               Bedminster, NJ  07921
               Attention: David Benson, CFO
               Fax. No.: 908-306-4350

                                      -61-
<PAGE>
 
               with required copies to:

               Bell Atlantic Corporation
               1717 Arch Street
               Philadelphia, PA  19103
               Attention: Philip R. Marx, Senior Attorney, Mergers & 
                           Acquisitions

               Fax No.: 215-963-9195

                    and

               Morgan, Lewis & Bockius LLP
               1701 Market Street
               Philadelphia, PA  19103
               Attention: N. Jeffrey Klauder
               Fax No.: 215-963-5299

          (b)  If to Bidder or Bidder Member:

               Crown Castle International Corp.
               510 Bering Drive, Suite 500
               Houston, TX  77057
               Attention: David L. Ivy, President
               Fax No.: 713-570-3150

               with required copies to:
 
               Cravath, Swaine & Moore
               825 Eighth Avenue
               New York, NY 10019
               Attention:  Philip A. Gelston
               Fax. No.:   212-474-3700

      11.10 Tax Reporting.  BAM, the Transferring Partnerships, Bidder, Bidder
            -------------                                                     
Member, HoldCo, HoldCo Sub and OpCo shall report the transactions contemplated
by this Agreement in the manner set forth in the following sentences for
purposes of filing U.S. federal, state and local income and other Tax and
information returns, and shall take and defend positions consistent therewith in
all dealings with the Internal Revenue Service and relevant state tax
authorities.  Such parties shall report (i) the transfer of the BAM Contributed
Assets to OpCo in exchange for membership interests in OpCo in part as a sale
and in part as a contribution to which Section 721(a) of the Code applies, with
the respective asset values for each such part to be determined in good faith by
BAM and Bidder at the Closing in a manner consistent with Articles 2 and 3 of
this Agreement, (ii) the contribution of the membership interests in OpCo as a
contribution to which Section 721(a) of the Code applies and to which Section
708(b)(1)(B) of the Code does not apply, and (iii) the distribution of the
proceeds of the Anticipated Financing to HoldCo Sub and subsequently to BAM and
the Transferring Partnerships as a distribution of money that does not result in
the recognition of any gain pursuant to Section 707 of the Code or Section
731(a)(1) of the Code on account of Section 752 or any other Section of the
Code.  Such parties shall file all U.S. federal, state and local income and
other Tax returns consistently with the provisions of this Section 11.10.

                                      -62-
<PAGE>
 
      11.11 Delaware Law to Govern.  This Agreement shall be governed by and
            ----------------------                                          
interpreted and enforced in accordance with the laws of the State of Delaware,
without regard to the principles of conflict of law thereof.

      11.12 No Benefit to Others.  Except as expressly provided herein, the
            --------------------                                           
representations, warranties, covenants and agreements contained in this
Agreement are for the sole benefit of the parties hereto and OpCo and they shall
not be construed as conferring any rights on any other persons.

      11.13 Table of Contents; Headings.  The table of contents and all Section
            ---------------------------                                        
headings contained in this Agreement are for convenience of reference only, do
not form a part of this Agreement and shall not affect in any way the meaning or
interpretation of this Agreement.

      11.14 Schedules and Exhibits.  All Exhibits, Annexes and Schedules 
            ----------------------                                       
referred to herein are intended to be and hereby are specifically made a part of
this Agreement.

      11.15 Severability.  Any provision of this Agreement which is invalid or
            ------------                                                      
unenforceable in any jurisdiction shall be ineffective to the extent of such
invalidity or unenforceability without invalidating or rendering unenforceable
the remaining provisions hereof, and any such invalidity or unenforceability in
any jurisdiction shall not invalidate or render unenforceable such provision in
any other jurisdiction.

      11.16 Counterparts.  This Agreement may be executed in any number of
            ------------                                                  
counterparts and any party hereto may execute any such counterpart, each of
which when executed and delivered shall be deemed to be an original and all of
which counterparts taken together shall constitute but one and the same
instrument.  This Agreement shall become binding when one or more counterparts
taken together shall have been executed and delivered by the parties.  It shall
not be necessary in making proof of this Agreement or any counterpart hereof to
produce or account for any  of the other counterparts.

      11.17 Force Majeure.  Should any circumstance beyond the reasonable 
            -------------                                                 
control of any party occur which delays or renders impossible the performance of
its obligations under this Agreement on the date herein provided for, such
obligation shall be postponed for such time as such performance necessarily has
had to be suspended or delayed on account thereof. In either such event, all
parties shall promptly meet to determine an equitable solution to the effects of
such event, provided that any party who fails because of force majeure to
perform its obligations hereunder will upon the cessation of the force majeure
take all reasonable steps within its power to resume with the least possible
delay compliance with its obligations. Events of force majeure shall include,
without limitation, war, revolution, invasion, insurrection, riots, mob
violence, sabotage or other civil disorders, acts of God, strikes or other labor
disputes, acts, laws, regulations or rules of any government or governmental
agency and any other circumstances beyond the reasonable control of the party,
the obligations of whom are affected thereby.

      11.18 Directly or Indirectly.  Any provision in this Agreement referring 
            ----------------------                                   
to action to be taken by any Person, or that such Person is prohibited from
taking, shall be applicable whether such action is taken directly or indirectly
by such Person.

      11.19 Interpretation. When a reference is made in this Agreement to an
            --------------                                                  
Article or Section, such reference shall be to an Article or Section of this
Agreement unless otherwise indicated.  Whenever the words "include," "includes"
or "including" are used in this Agreement, they shall be deemed to be followed
by the words "without limitation."  The words "hereof," "herein" and "hereunder"
and words of similar import when used in this Agreement shall refer to this
Agreement as a whole and not to any 

                                      -63-
<PAGE>
 
particular provision of this Agreement. Any agreement, instrument or statute
defined or referred to herein or in any agreement or instrument that is referred
to herein means such agreement, instrument or statute as from time to time
amended, modified or supplemented, including (in the case of agreements or
instruments) by waiver or consent and (in the case of statutes) by succession of
comparable successor statutes and references to all attachments thereto and
instruments incorporated therein. References to a Person are also to its
permitted successors and assigns.

                                      -64-
<PAGE>
 
          IN WITNESS WHEREOF, the parties hereto have duly executed this
Agreement on the date first written.

                              CROWN CASTLE INTERNATIONAL CORP.

                                  /s/ David L. Ivy
                              By: __________________________________
                                  Name:  David L. Ivy
                                  Title: President


                              CCA INVESTMENT CORP.

                                  /s/ David L. Ivy
                              By: __________________________________
                                  Name:  David L. Ivy
                                  Title: President


                              CELLCO PARTNERSHIP

                              By: Bell Atlantic Mobile, Inc., its
                                     managing general partner

                                  /s/ David H. Benson
                              By: __________________________________
                                  Name:  David H. Benson
                                  Title: Chief Financial Officer


TRANSFERRING PARTNERSHIPS:

ORANGE COUNTY-POUGHKEEPSIE MSA
LIMITED PARTNERSHIP

By: NYNEX Mobile Limited Partnership 2, its
      managing general partner

      By: Cellco Partnership, its
      managing general partner

            By: Bell Atlantic Mobile, Inc., its
                  managing general partner

                /s/ David H. Benson
            By: __________________________________
                Name:  David H. Benson
                Title: Chief Financial Officer


                                      -65-
<PAGE>
 
                                   EXHIBIT A


Allentown SMSA Limited Partnership

Anderson Cellular Telephone Company

Columbia Cellular Telephone Company

New York SMSA Limited Partnership

Orange County - Poughkeepsie MSA Limited Partnership

Pennsylvania RSA No. 6 (II) Limited Partnership

Pittsburgh SMSA Limited Partnership

Washington, DC SMSA Limited Partnership

                                      -66-


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