Document:

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                                                                    EXHIBIT 10.5

           FORM OF EXECUTIVE SEVERANCE AND NONCOMPETITION AGREEMENT

          THIS AGREEMENT, dated             , is between Focal Communications
Corporation, a Delaware corporation ("Focal"), and          (the "Executive").
The terms used in this Agreement and not otherwise defined herein have the
meanings assigned to such terms in the attached Exhibit A.

                                   RECITALS:

          A.  Executive is a key employee of Focal or a Subsidiary and has made
and is expected to continue to make significant contributions to the
profitability, growth, and financial strength of Focal.

          B.  To promote retention, continuity of management in the event of an
actual or threatened change in control, and other benefits to Focal, Focal
desires to establish a severance benefit for Executive.

          C.  Focal has assessed the costs and benefits of providing severance
benefits as provided in this Agreement and similar agreements for other key
employees, and has determined that it is cost-effective and in the best
interests of Focal to enter into this Agreement and such similar agreements.

          NOW, THEREFORE, for good and valuable consideration, the receipt and
sufficiency of which is hereby acknowledged, Focal and Executive agree as
follows:

          1. Termination Generally.  If Executive's employment with Focal or a
             ---------------------
Subsidiary is terminated by Focal or a Subsidiary, other than as a result of a
Disqualifying Event and whether or not Executive obtains subsequent employment,
Focal will, from and after the Termination Date for a period of six months,
continue to pay Executive in accordance with Focal's biweekly payroll practices
an amount equal to (a) Executive's highest biweekly salary or base compensation
during the two-year period immediately prior to termination plus (b) an amount
equal to 1/26 multiplied by the greater of (i) Executive's targeted annual bonus
for the year in which termination occurs and (ii) Executive's annual bonus for
the year immediately preceding the year in which termination occurs.  In
addition, Focal will, from and after the Termination Date for a period of six
months, provide Executive with health, dental, disability, and life insurance
benefits substantially similar to the benefits in effect immediately prior to
the Termination Date.
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          2.   Termination Upon a Change in Control. (a) If, in anticipation of
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or within twelve months after a Change in Control, Focal or a Subsidiary
terminates Executive's employment, other than as a result of a Disqualifying
Event and whether or not Executive obtains subsequent employment, or if
Executive terminates his or her employment under Section 2(b), Focal will, from
and after the Termination Date for a period of one year, pay Executive in
accordance with Focal's biweekly payroll practices an amount equal to (i)
Executive's highest biweekly salary or base compensation during the two-year
period prior to termination of employment plus (ii) an amount equal to 1/26
multiplied by the greater of (A) Executive's targeted annual bonus for the year
in which termination occurs and (B) Executive's annual bonus for the year
immediately preceding the year in which termination occurs. In addition, Focal
will, from and after the Termination Date for a period of one year, provide
Executive with health, dental, disability, and life insurance benefits
substantially similar to the benefits in effect immediately prior to the Change
in Control.

          (b)  In the event of a Change in Control, Executive may terminate
employment with Focal or a Subsidiary within twelve months after the Change in
Control with the right to compensation as provided in Section 2(a) upon the
occurrence of one or more of the following events in connection with or
anticipation of such Change in Control (regardless of whether any other reason,
other than Cause, for such termination exists or has occurred):

     (i)   a material reduction in Executive's total compensation without
           Executive's consent (it being understood that a change in the form or
           measure of compensation, including but not limited to a change from
           salary-based compensation to commission-based compensation or a
           rearrangement of Executive's compensation package to include a
           different combination of salary, bonus, commission, options, or other
           equity incentives, etc., shall not in and of itself constitute such a
           reduction),

     (ii)  a significant adverse change in the nature or scope of Executive's
           authority, power, function, responsibilities, or duties,

     (iii) a relocation of Executive's place of employment to a site that is
           more than 35 miles from Executive's place of employment immediately
           prior to the Change in Control without Executive's consent,

     (iv)  Focal requires Executive to travel away from his or her office in the
           course of discharging his or her responsibilities or duties 20% more
           (in terms of aggregate days in any calendar year or in any calendar
           quarter when annualized for purposes of comparison to any prior year)
           than was required of Executive in the year immediately prior to the
           Change in Control without Executive's consent, or

     (v)   The liquidation, dissolution, merger, consolidation, or
           reorganization of Focal, or transfer of all or substantially all of
           its business and/or assets, or the entry by Focal into a binding
           agreement to consummate any such transaction, unless the successor or
           successors to which all or substantially all of its business and/or

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          assets have been or will be transferred (by operation of law or
          otherwise) assume(s) or has agreed to assume all duties and
          obligations of Focal under this Agreement.

          3.   Confidentiality; Noncompete; Nonsolicitation.  (a)  Executive
               --------------------------------------------
acknowledges that during the course of Executive's employment with Focal and its
Subsidiaries he or she will require access to and become familiar with
sensitive, highly confidential, unique, and valuable information and trade
secrets of Focal and its Subsidiaries, the disclosure to or use by a competitor
would cause Focal material and irreparable harm.  In addition, Focal and
Executive agree that the services Executive will render to Focal and its
Subsidiaries will be of a unique nature and significant value.  Consequently,
Executive represents that the restrictions contained in this Section 3 are fair
and reasonable with respect to duration, geographic area, and scope, and
acknowledges that Executive's commitments under this Section 3 constitute a
material inducement to Focal to enter into this Agreement.

          (b)  During the term of Executive's employment and for a period ending
six months following the Termination Date, if Executive shall have received or
be receiving benefits under Sections 1 or 2, Executive shall not, without the
prior written consent of Focal, engage in any Competitive Activity.
Notwithstanding the foregoing, in the event of termination for Cause or if
Executive terminates his or her employment with Focal or a Subsidiary other than
under Section 2(b), Executive may not, during the six months following the
Termination Date, engage in any Competitive Activity whether or not Executive
receives post-termination payments or benefits from Focal.

          (c)  In the event of a termination under Section 1, Focal may in its
discretion determine to extend the period referred to in Section 3(b) up to the
first anniversary of the Termination Date, provided it notifies Executive of
such determination within ten days after the Termination Date and irrevocably
commits to extend the compensation payable and benefits provided under Section 1
to be coterminous with the termination date of the period so extended.

          (d)  Executive will not, without the prior written consent of Focal,
during his or her employment or thereafter disclose to any person not employed
by Focal, or use in connection with engaging in competition with Focal, any
confidential or proprietary information of Focal.  For purposes of this
Agreement, the term "confidential or proprietary information" includes all
information of any nature and in any form that is owned by Focal and that is not
publicly available (other than by Executive's breach of this Section 3(d)) or
generally known to persons engaged in businesses similar or related to those of
Focal.  Confidential or proprietary information will include, without
limitation, Focal's financial matters, customers, employees, industry contracts,
strategic business plans, product development (or other proprietary product
data), marketing plans, and all other secrets and all other information of a
confidential or proprietary nature.  For purposes of the preceding two
sentences, the term "Focal" will also include any Subsidiary (collectively, the
"Restricted Group").  The foregoing obligations imposed by this Section 3(d)
will not apply (i) during the Executive's employment, in the course of the
business of and for the benefit of Focal, (ii) if

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such confidential or proprietary information will have become, through no fault
of Executive, generally known to the public, or (iii) if Executive is required
by law to make disclosure (after giving Focal notice and an opportunity to
contest such requirement).

          (e)  Executive will not, during his or her employment and for one year
thereafter, without the prior written consent of Focal, directly or indirectly,
on behalf of Executive or on behalf of any person, firm, or company, (i) hire
(as an employee or consultant) any person who was an employee of the Restricted
Group during Executive's employment with the Restricted Group or thereafter or
(ii) attempt to influence, persuade, or induce, or assist any other person in so
persuading or inducing, any person or entity to give up, or to not commence,
employment or a business relationship with the Restricted Group.

          (f)  The provisions of this Section 3 shall supersede and replace the
noncompetition provisions of any other agreement or undertaking of Executive,
including, without limitation, the Confidentiality Agreement signed by Executive
upon the commencement of his or her employment with Focal or a Subsidiary.

          4.   Employment Rights. Nothing expressed or implied in this Agreement
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will create any right or duty on the part of Focal or Executive to have
Executive remain in the employment of Focal or any Subsidiary. For purposes of
this Agreement, the transfer of employment from one Subsidiary to another
Subsidiary, or from Focal to a Subsidiary or vice-versa, shall not be considered
a termination.

          5.   Effect of Termination on Other Benefits.  A termination by Focal
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under Sections 1 or 2(a), or by Executive under Section 2(b), will not limit any
rights that Executive may have under any agreement, policy, plan, program, or
arrangement of Focal or Subsidiary providing Employee Benefits, which rights
shall be governed by the terms thereof.

          6.   Interest.  Without limiting the rights of Executive at law or in
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equity, if Focal fails to make any payment or provide any benefit required to be
made or provided under this Agreement on a timely basis, Focal will pay interest
on the amount or value thereof at an annualized rate of 15%.  Such interest will
be payable on demand.

          7.   No Duty to Mitigate.  Executive's entitlement to compensation and
               -------------------
benefits under this Agreement shall not be offset by any compensation Executive
obtains from another employer.  Executive shall have no duty to mitigate.
Notwithstanding the foregoing, if Executive obtains employment and he or she is
eligible for health, dental, disability, or life insurance benefits comparable
in the aggregate and at similar cost to those provided to Executive by Focal or
a Subsidiary immediately prior to the Termination Date, Focal's obligation to
continue to provide such benefits shall terminate.

          8.   Withholding of Taxes. Focal may withhold from any amounts payable
               --------------------
under this Agreement all federal, state, or other taxes as Focal is required to
withhold under applicable law.

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          9.   Successors and Binding Agreement.  (a) Focal will require any
               --------------------------------
successor (whether direct or indirect, by purchase, merger, consolidation,
reorganization, or otherwise) to all or substantially all of the business or
assets of Focal expressly to assume and agree to perform this Agreement in the
same manner and to the same extent Focal would be required to perform if no such
succession had taken place.  This Agreement will be binding upon and inure to
the benefit of Focal and any successor to Focal, including without limitation
any persons acquiring directly or indirectly all or substantially all of the
business or assets of Focal whether by purchase, merger, consolidation,
reorganization, or otherwise (and such successor shall thereafter be deemed
"Focal" for the purposes of this Agreement), but will not otherwise be
assignable, transferable, or delegable by Focal.

          (b)  This Agreement will inure to the benefit of and be enforceable by
Executive's personal representatives, executors, and successors.

          (c)  This Agreement is personal in nature and neither of the parties
shall, without the consent of the other, assign, transfer, or delegate this
Agreement or any rights or obligations hereunder except as expressly provided in
Sections 9(a) and (b).  Without limiting the generality of the foregoing,
Executive's right to receive payments hereunder will not be assignable,
transferable, or delegable, whether by pledge, creation of a security interest,
or otherwise, other than by a transfer by Executive's will or by the laws of
descent and distribution and, in the event of any attempted assignment or
transfer contrary to this Section 9(c), Focal shall have no liability to pay any
amount so attempted to be assigned, transferred, or delegated.

          10.  Term.  This Agreement shall terminate at the expiration of the
               ----
Term, provided termination will not affect either party's rights or obligations
arising from a Termination Date that occurs prior to the expiration of the Term.

          11.  Notices.  All communications, including without limitation
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notices, consents, requests or approvals, required or permitted to be given
under this Agreement will be in writing and will be deemed to have been duly
given when hand delivered or dispatched by electronic facsimile transmission
(with receipt thereof orally confirmed), or three business days after having
been sent by a nationally recognized overnight courier service addressed to
Focal (to the attention of the Secretary of Focal) at its principal executive
office and to Executive at his or her principal residence, or to such other
address as any party may have furnished to the other in writing and in
accordance herewith, except that notices of changes of address shall be
effective only upon receipt.

          12.  Governing Law.  The validity, interpretation, construction, and
               -------------
performance of this Agreement will be governed by and construed in accordance
with the substantive laws of the State of Illinois, without giving effect to the
principles of conflict of laws of such State.

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          13.  Judicial Modification.  If the final judgment of a court of
               ---------------------
competent jurisdiction declares that any term or provision of this Agreement is
invalid or unenforceable, the court making such determination of invalidity or
unenforceability shall have the power to reduce the duration, geographic area,
or scope of the term or provision, to delete specific words or phrases, or to
replace any invalid or unenforceable term or provision with a term or provision
that is valid and enforceable and that comes closest to expressing the intention
of the invalid or unenforceable term or provision, and this Agreement shall be
enforceable as so modified after the expiration of the time within which the
judgment or decision may be appealed.

          14.  Legal Fees and Expenses.  If Focal fails to comply with any of
               -----------------------
its obligations under this Agreement or if Focal or any other person takes or
threatens to take any action to declare this Agreement void or unenforceable, or
institutes any litigation or other action or proceeding designed to deny, or to
recover from, Executive the benefits provided or intended to be provided to
Executive hereunder, Focal irrevocably authorizes Executive from time to time to
retain counsel of Executive's choice, at the expense of Focal as hereafter
provided, to advise and represent Executive in connection with any
interpretation, enforcement, or defense, including without limitation the
initiation or defense of any litigation or other legal action, whether by or
against Focal or any director, officer, stockholder, or other person affiliated
with Focal, in any jurisdiction.  Without respect to whether Executive prevails,
in whole or in part, in connection with any of the foregoing, Focal will pay and
be solely financially responsible for any and all attorneys' and related fees
and expenses incurred by Executive in connection with any of the foregoing;
provided that, in regard to such matters, Executive has not acted in bad faith
or with no colorable claim of success.

          15.  Miscellaneous.  No provision of this Agreement may be modified,
               -------------
waived, or discharged unless such waiver, modification, or discharge is agreed
to in writing signed by Executive and Focal.  No waiver by either party hereto
at any time of any breach by the other party or compliance with any condition or
provision of this Agreement to be performed by such other party will be deemed a
waiver of similar or dissimilar provisions or conditions at the same or at any
prior or subsequent time.  No agreements or representations, oral or otherwise,
expressed or implied with respect to the subject matter hereof have been made by
either party that are not set forth in this Agreement.

          16.  Headings.  The section headings in this Agreement are for
               --------
convenience of reference only and do not have substantive effect.

          17.  Counterparts. This Agreement may be executed in one or more
               ------------
counterparts, each of which shall be deemed to be an original but all of which
together will constitute one and the same agreement.

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     IN WITNESS WHEREOF, the parties have caused this Agreement to be duly
executed and delivered as of the date first above written.

                              FOCAL COMMUNICATIONS CORPORATION

                              By:_________________________________________
                                  Its:  __________________________________

                              __________________________________________
                              Executive

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                                   EXHIBIT A

                                  Definitions
                                  -----------

          In addition to terms defined elsewhere in the Agreement, the following
terms have the following meanings when used in this Agreement with initial
capital letters:

          "Cause" means that, prior to any termination under Sections 1 or 2,
Executive shall have, in the reasonable determination of (i) the chief executive
officer of Focal in the case of a termination prior to a Change in Control or
(ii) the Board of Directors of Focal in the case of a termination upon or after
a Change in Control, after due inquiry, notice to Executive specifying in
reasonable detail the facts giving rise to such decision, and providing
Executive a reasonable opportunity to be heard:

               (a)  committed a felony involving fraud, embezzlement, or theft
     or committed any other felony in a wrongful effort to further Focal's
     business interests;

               (b)  intentionally and wrongfully provided senior management or
     the Board of Directors of Focal with materially incorrect information;

               (c)  failed to cooperate completely and honestly with any
     investigation by Focal of Focal's activities or business practices,
     including without limitation, investigations by Focal's human resources or
     legal personnel;

               (d)  reported to work under the influence of alcohol or illegal
     drugs;

               (e)  committed intentional wrongful damage to Focal's or any
     Subsidiary's property;

               (f)  committed intentional wrongful disclosure of material
     confidential information of Focal or any Subsidiary;

               (g)  committed intentional wrongful engagement in any Competitive
     Activity;

               (h)  intentionally, wrongfully, and materially violated one or
     more of Focal's policies (as posted on its internal website from time to
     time); or

               (i)  otherwise engaged in a pattern of violation of Focal's
     policies (as posted on its internal website from time to time) after
     Executive received written notice from the Company of its belief that he or
     she violated one or more policies specifying in reasonable detail the basis
     for such belief.

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          "Change in Control" shall mean if at any time any of the following
events shall have occurred:

          (a)  Focal is merged or consolidated or reorganized with or into
another corporation or other legal person, and as a result of such merger,
consolidation, or reorganization less than a majority of the combined voting
power of the then-outstanding securities of such corporation or person
immediately after such transaction are held in the aggregate by the holders of
securities entitled to vote generally in the election of Directors immediately
prior to such transaction;

          (b)  Focal sells or otherwise transfers all or substantially all of
its assets to any other corporation or other legal person, and less than a
majority of the combined voting power of the then-outstanding securities of such
corporation or person immediately after such sale or transfer is held in the
aggregate by the holders of Common Stock immediately prior to such sale or
transfer;

          (c)  There is a report filed on Schedule 13D or Schedule 14D-1 (or any
successor schedule, form or report), as promulgated in each case pursuant to the
Securities and Exchange Act of 1934 (the "Exchange Act"), disclosing that any
person (as the term "person" is used in Section 13(d)(3) or Section 14(d)(2) of
the Exchange Act) has become the beneficial owner (as the term "beneficial
owner" is defined in Rule 13d-3 promulgated under the Exchange Act or any
successor rule or regulation promulgated thereunder) of securities representing
50% or more of the Voting Power; or

          (d)  If during any period of two consecutive years, individuals who at
the beginning of any such period constitute the Directors and any new Directors
whose election or nomination for election by Focal's stockholders was approved
by a vote of at least two-thirds of the Directors then still in office who
either were Directors at the beginning of the period or whose election was
previously so approved cease for any reason to constitute a majority of the
Directors.  Notwithstanding the provisions of subparagraph (c) above, a "Change
in Control" shall not be deemed to have occurred for the purposes of this
Agreement (i) solely because MDCP either files or becomes obligated to file a
report on Schedule 13D (or any successor schedule or report), as promulgated
pursuant to the Exchange Act, disclosing beneficial ownership by it of
securities representing 50% or more of the Voting Power, (ii) solely because
Focal or any Focal-sponsored employee stock ownership plan or other employee
benefit plan of Focal either files or becomes obligated to file a report or
proxy statement under or in response to Schedule 13D, Schedule 14D-1, Form 8-K,
or Schedule 14A (or any successor schedule, form or report or item therein), as
promulgated in each case pursuant to the Exchange Act, disclosing beneficial
ownership by it of securities representing 50% or more of the Voting Power or
otherwise, or because Focal reports that a change in control of the Company has
or may have occurred or will or may occur in the future by reason of such
beneficial ownership or (iii) solely because of a change in control of any
subsidiary (as the term "subsidiary" is defined in Section 424(f) of the Code)
of Focal.

          "Competitive Activity" means participation by Executive, directly or
indirectly, either for him or herself or for any other individual, corporation,
partnership, joint venture or other entity, in any business division, group, or
franchise (or if there are no divisions, any business) where such division,
group or franchise (or business, if applicable)

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engages or proposes to engage in any business conducted by Focal or proposed to
be conducted pursuant to a business plan of Focal in existence at the time of a
Change in Control, (including, but not limited to, the sale or distribution of
local switched dialtone telecommunications services) in any Metropolitan
Statistical Area in which Focal conducts such business or proposes to conduct
such business pursuant to such a business plan. For purposes of this Agreement,
the term "participate in" shall include, without limitation, having any direct
or indirect interest in any corporation, partnership, joint venture or other
entity, whether as a sole proprietor, owner, stockholder, partner, joint
venturer, creditor or otherwise, or rendering any direct or indirect service or
assistance to any individual, corporation, partnership, joint venture and other
business entity (whether as a director, officer, manager, supervisor, employee,
agent, consultant or otherwise), other than ownership of up to $1 million in
value of the outstanding stock of any class which is publicly traded.

          "Disqualifying Event" means that Executive's employment has been
terminated by the Company as a result of the occurrence of one of the following
events:

               (i)    Executive's death;

               (ii)   Executive becomes permanently disabled within the meaning
     of, and begins to receive disability benefits under, the long-term
     disability plan in effect for, or applicable to, Executive; or

               (iii)  Cause.

          "Employee Benefits" means the perquisites, benefits, and service
credit for benefits as provided under any and all employee retirement income and
welfare benefit policies, plans, programs, or arrangements in which Executive is
entitled to participate, including without limitation any stock option,
performance share, performance unit, stock purchase, stock appreciation,
savings, pension, supplemental executive retirement, or other retirement income
or welfare benefit, deferred compensation, incentive compensation, group or
other life, health, medical/hospital or other insurance (whether funded by
actual insurance or self-insured by Focal or a Subsidiary), disability, salary
continuation, expense reimbursement and other employee benefit policies, plans,
programs or arrangements that may now exist or any equivalent successor
policies, plans, programs or arrangements that may be adopted hereafter by Focal
or a Subsidiary, providing perquisites, benefits and service credit for benefits
at least as great in the aggregate as are payable thereunder prior to a Change
in Control.

          "Subsidiary" means an entity in which Focal directly or indirectly
beneficially owns 50% or more of the outstanding Voting Stock.

          "Term" means the period commencing as of the date hereof and expiring
on the last day of the third full calendar year after the date of this
Agreement; provided that at the expiration of the initial or any renewal term,
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the term of this Agreement will automatically extend for an additional year
                                -------------
unless, not later than September 30 of the immediately preceding

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year, Focal or Executive shall have given notice that it or Executive, as the
case may be, does not wish to have the Term extended.

          "Termination Date" means the date on which Executive's employment is
terminated (the effective date of which shall be the date of termination).

          "Voting Stock" means securities entitled to vote generally in the
election of directors of Focal.

                                       4<PAGE>

                                                                    Exhibit 10.6

                                PLEDGE AGREEMENT

          THIS PLEDGE AGREEMENT is made this 14nd day of April, 2001, by Michael
L. Mael (the "Employee") in favor of Focal Communication Corporation, a Delaware
corporation (the "Company").

                              W I T N E S S E T H:

          WHEREAS, the Employee has delivered to the Company a Promissory Note,
dated the date hereof (the "Note"), evidencing his obligation to repay a loan
made by the Company to the Employee (the "Loan"); and

          WHEREAS, it is a condition to the Loan that the Employee pledge the
Pledged Stock as security for his obligations under the Note;

          NOW, THEREFORE, in consideration of the premises contained herein the
parties hereto agree as follows:

     1.   Defined Terms. Unless otherwise defined herein, the following terms
shall have the following meanings:

          "Code" means the Uniform Commercial Code from time to time in effect
           ----
     in the State of Illinois.

          "Collateral" means the Pledged Stock, together with all stock
           ----------
     certificates, securities or other property, options and rights of any
     nature whatsoever that may be issued or granted in respect of the Pledged
     Stock by the Company to the Employee while this Pledge Agreement is in
     effect and all Proceeds.

          "Obligations" means the unpaid principal of and interest on the Note
           -----------
     and all other obligations and liabilities of the Employee to the Company
     that may arise under, out of, or in connection with, the Note or this
     Pledge Agreement.

          "Pledge Agreement" means this Pledge Agreement, as amended,
           ----------------
     supplemented or otherwise modified from time to time.

          "Pledged Stock"  means (i) the shares of the Company's Common Stock,
           -------------
     par value $.01 per share ("Common Stock"), listed on Schedule 1 hereto and
     (ii) any shares of Common Stock hereafter acquired by the Employee, whether
     by a purchase, the lapse of restrictions on shares of restricted stock, the
     exercise of a stock option or otherwise.

          "Proceeds" means all "proceeds" as such term is defined in Section 9-
           --------
     306(1) of the Uniform Commercial Code in effect in the State of Illinois on
     the date hereof and shall in any event include, but shall not be limited
     to, all dividends or other income from
<PAGE>

     the Pledged Stock or other Collateral, collections thereon or distributions
     with respect thereto.

     2.  Pledge; Grant of Security Interest. Concurrently with his execution and
delivery of this Pledge Agreement, the Employee shall deliver the Pledged Stock
listed on Schedule 1 hereto to the Company. From time to time hereafter, as the
Employee acquires additional Pledged Stock, the Employee shall deliver such
Pledged Stock to the Company and, pending such delivery, shall hold such Pledged
Stock as agent for the Company, separate and apart from his other assets and
properties and in trust for the benefit of the Company. The Employee hereby
grants to the Company a security interest in the Collateral, as collateral
security for the prompt and complete payment and performance when due (whether
at the stated maturity, by acceleration, upon required prepayment or otherwise)
of the Obligations.

     3.  Stock Powers. Concurrently with the delivery to the Company of each
certificate representing one or more shares of Pledged Stock, the Employee shall
deliver an undated stock power covering such certificate, duly executed in blank
by the Employee.

     4.  Representations and Warranties. The Employee represents and warrants
that:

         (a)   the Employee is the record and beneficial owner of, and has good
     and marketable title to, the Pledged Stock listed on Schedule 1 hereto,
     free of any and all liens or options in favor of, or claims of, any other
     Person, except the liens created hereunder; and

         (b)   the Employee will be the record and beneficial owner of, and will
     have good and marketable title to, any additional Pledged Stock acquired
     after the date hereof, free of any and all liens or options in favor of, or
     claims of, any other Person except the liens created hereunder; and

         (c)   the lien granted pursuant to this Pledge Agreement constitutes a
     valid, perfected senior lien on the Collateral.

     5.  Covenants.  The Employee covenants and agrees with the Company that,
from and after the Closing Date until the Obligations are paid in full:

         (a)   If the Employee shall, as a result of his ownership of the
     Pledged Stock or any other Collateral, become entitled to receive or shall
     receive any non-cash dividend or distribution (whether in additional shares
     of Common Stock, other securities or other property and whether in
     connection with any reclassification, increase or reduction of capital or
     any reorganization or otherwise), or any option or right, whether in
     addition to, in substitution of, as a conversion of, or in exchange for any
     shares of the Pledged Stock or any of the other Collateral, or otherwise in
     respect thereof, the Employee shall accept the same as the agent of the
     Company, hold the same separate and apart from his other assets and
     properties and in trust for the benefit of the Company, and deliver the
     same forthwith to the Company in the exact form received, duly endorsed by
     the Employee to the Company, if required, together with an undated stock
     power duly executed in blank by the Employee covering any certificate
     received by the Employee, to be held by the

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     Company, subject to the terms hereof, as additional collateral security for
     the Obligations.

          (b)  Without the prior written consent of the Company, the Employee
     will not (i) sell, assign, transfer, exchange, or otherwise dispose of, or
     grant any option with respect to, the Collateral or (ii) create, incur or
     permit to exist any lien or option in favor of, or any claim of any Person
     with respect to, any of the Collateral, or any interest therein, except for
     the lien created by this Pledge Agreement.

          (c)  At any time and from time to time upon the written request of the
     Company, the Employee will promptly and duly execute and deliver such
     further instruments and documents and take such further actions as the
     Company may reasonably request for the purposes of obtaining or preserving
     the full benefits of this Pledge Agreement and the rights and powers herein
     granted.

          (d)  The Employee agrees to pay and hold the Company harmless from any
     and all liabilities with respect to, or resulting from any delay in paying,
     any and all stamp, excise, sales or other taxes that may be payable or
     determined to be payable with respect to any of the Collateral or in
     connection with any of the transactions contemplated by this Pledge
     Agreement.

     6.   Voting Rights. Unless the Employee fails to pay or perform any of the
Obligations of the Employee under the Note or this Pledge Agreement, the
Employee shall be permitted to exercise all voting and corporate rights with
respect to the Pledged Stock; provided, however, that no vote shall be cast or
corporate rights exercised or other action taken that, in the Company's
reasonable judgment, would impair the Collateral or would be inconsistent with
or result in any violation of any provision of the Note or this Pledge
Agreement.

     7.   Rights of the Company. (a) If the Employee fails to pay or perform any
of the Obligations, all shares of the Pledged Stock shall be registered in the
name of the Company or its nominee and the Company or its nominee may thereafter
exercise (i) all voting, corporate and other rights pertaining to such shares of
the Pledged Stock at any meeting of stockholders of the Company or otherwise and
(ii) any and all rights of conversion, exchange, subscription and any other
rights, privileges or options pertaining to such shares of the Pledged Stock as
if it were the absolute owner thereof (including but not limited to the right to
exchange at its discretion any and all of the Pledged Stock upon the merger,
consolidation, reorganization, recapitalization or other fundamental change in
the corporate structure of the Company or upon the exercise by the Employee or
the Company of any right, privilege or option pertaining to such shares of the
Pledged Stock and, in connection therewith, the right to deposit and deliver any
and all of the Pledged Stock with any committee, depositary, transfer agent,
registrar or other designated agency upon such terms and conditions as it may
determine), all without liability except to account for property actually
received by it, but the Company shall have no duty to the Employee to exercise
any such right, privilege or option and shall not be responsible for any failure
to do so or delay in so doing.

          (b)  The rights of the Company hereunder shall not be conditioned or
contingent upon the pursuit by the Company of any right or remedy against the
Employee or against any other Person that may be or become liable in respect of
all or any part of the

                                       3
<PAGE>

Obligations or against any collateral security therefor, guarantee therefor or
right of offset with respect thereto. The Company shall not be liable for any
failure to demand, collect or realize upon all or any part of the Collateral or
for any delay in so doing, and the Company shall not be under any obligation to
sell or otherwise dispose of any Collateral upon the request of the Employee or
any other person or to take any other action whatsoever with regard to the
Collateral or any part thereof.

     8.   Remedies. If the Employee fails to perform any of his Obligations and
such failure is continuing, the Company may exercise, in addition to all other
rights and remedies granted in this Pledge Agreement and in any other instrument
or agreement securing, evidencing or relating to the Obligations, all rights and
remedies of a secured party under the Code. Without limiting the generality of
the foregoing, the Company, without demand of performance or other demand,
presentment, protest, notice or advertisement of any kind (except any notice
required by the Note or any notice required by law and hereinafter referred to)
to or upon the Employee or any other Person (any and all such demands, defenses,
notices and advertisements being hereby waived), may in such circumstances
forthwith collect, receive, appropriate and realize upon the Collateral, or any
part thereof, and may forthwith sell, assign, give an option or options to
purchase or otherwise dispose of and deliver the Collateral or any part thereof
(or contract to do any of the foregoing), in one or more parcels at public or
private sale or sales, in the over-the-counter market, at any exchange, broker's
board or office of the Company or elsewhere upon such terms and conditions as it
may deem advisable and at such prices as it may deem best, for cash or on credit
or for future delivery without assumption of any credit risk. The Company shall
have the right, upon any such public sale or sales and, to the extent permitted
by law, upon any such private sale or sales, to purchase the whole or any part
of the Collateral so sold, free of any right or equity of redemption in the
Employee, and any such right or equity is hereby waived or released. The Company
shall apply any Proceeds from time to time held by it and the net proceeds of
any such collection, recovery, receipt, appropriation, realization or sale,
after deducting all reasonable costs and expenses of every kind incurred in
respect thereof or incidental to the care or safekeeping of any of the
Collateral or in any way relating to the Collateral or the rights of the Company
hereunder, including but not limited to reasonable attorneys' fees and
disbursements of counsel to the Company, to the payment of the Obligations in
whole or in part and in such order as the Company may elect, and only after such
application and after the payment by the Company of any other amount required by
any provision of law, including but not limited to Section 9-504(1)(c) of the
Code, need the Company account for the surplus, if any, to the Employee. To the
extent permitted by applicable law, the Employee waives all claims, damages and
demands, other than any rights of notice and cure under the Note, he may acquire
against the Company arising out of the exercise by him of any rights hereunder.
If any notice of a proposed sale or other disposition of Collateral shall be
required by law, such notice shall be deemed reasonable and proper if given at
least 10 days before such sale or other disposition. The Employee shall remain
liable for any deficiency if the proceeds of any sale or other disposition of
Collateral are insufficient to pay the Obligations and the fees and disbursement
of any attorneys employed by the Company to collect such deficiency.

     9.   Private Sales.  (a) The Employee recognizes that, in the absence of
registration under the provisions of the Securities Act of 1933, as amended (the
"Securities Act"), and applicable state securities laws, the Company may be
unable to effect a public sale of any or all the Pledged Stock, by reason of
certain prohibitions contained in the Securities Act and

                                       4
<PAGE>

applicable state securities laws or otherwise and may be compelled to resort to
one or more private sales thereof to a restricted group of purchasers that will
be obliged to agree, among other things, to acquire such securities for their
own account for investment and not with a view to the distribution or resale
thereof. The Employee acknowledges and agrees that any such private sale may
result in prices and other terms less favorable than if such sale were a public
sale and, notwithstanding such circumstances, agrees that any such private sale
shall be deemed to have been made in a commercially reasonable manner. The
Company shall be under no obligation to delay a sale of any of the Pledged Stock
for the period of time necessary to register such securities for public sale
under the Securities Act or under applicable state securities laws.

          (b)  The Employee further agrees to use his best efforts to do or
cause to be done all such other acts as may be necessary to make such sale or
sales of all or any portion of the Pledged Stock pursuant to this paragraph 9
valid and binding and in compliance with any and all other applicable
requirements of law. The Employee further agrees that a breach of any of the
covenants contained in this paragraph 9 will cause irreparable injury to the
Company, that the Company has no adequate remedy at law in respect of such
breach and, as a consequence, that each and every covenant contained in this
paragraph 9 shall be specifically enforceable against the Employee, and the
Employee hereby waives and agrees not to assert any defenses against an action
for specific performance of such covenants.

     10.  Limitation on Duties Regarding Collateral. From and after the Closing
Date, the Company's sole duty with respect to the custody, safekeeping and
physical preservation of the Collateral in its possession, under Section 9-207
of the Code or otherwise, shall be to deal with it in the same manner as the
Company deals with similar securities and property for its own account. Neither
the Company nor any of its directors, officers, employees or agents shall be
liable for failure to demand, collect or realize upon any of the Collateral or
for any delay in so doing or shall be under any obligation to sell or otherwise
dispose of any Collateral upon the request of the Employee or otherwise.

     11.  Powers Coupled with an Interest. All authorizations and agencies
herein contained with respect to the Collateral are irrevocable and powers
coupled with an interest.

     12.  Severability. Any provision of this Pledge Agreement that is
prohibited or unenforceable in any jurisdiction shall, as to such jurisdiction,
be ineffective to the extent of such prohibition or unenforceability without
invalidating the remaining provisions hereof, and any such prohibition or
unenforceability in any jurisdiction shall not invalidate or render
unenforceable such provision in any other jurisdiction.

     13.  Paragraph Headings. The paragraph headings used in this Pledge
Agreement are for convenience of reference only and are not to affect the
construction hereof or be taken into consideration in the interpretation hereof.

     14.  No Waiver; Cumulative Remedies. The Company shall not by any act
(except by a written instrument pursuant to paragraph 15 hereof) be deemed to
have waived any right or remedy hereunder or to have acquiesced in any breach of
any of the terms and conditions hereof. No failure on the part of the Company to
exercise, or delay on the part of the Company in exercising, any right, power or
privilege hereunder shall operate as a waiver thereof. No single or partial
exercise of any right, power or privilege hereunder shall preclude any other or
further

                                       5
<PAGE>

exercise thereof or the exercise of any other right, power or privilege. A
waiver by the Company of any right or remedy hereunder on any one occasion shall
not be construed as a bar to any right or remedy that the Company would
otherwise have on any future occasion. The rights and remedies herein provided
are cumulative, may be exercised singly or concurrently and are not exclusive of
any other rights or remedies provided by law.

     15.  Waivers and Amendments; Successors and Assigns; Governing Law. None of
the terms or provisions of this Pledge Agreement may be amended, supplemented or
otherwise modified except by a written instrument executed by the Employee and
the Company, provided that any provision of this Pledge Agreement enforceable by
the Company may be waived by the Company in a letter or agreement executed by
the Company. This Pledge Agreement shall be binding upon the successors and
assigns of the Employee and shall inure to the benefit of the Company and its
successors and assigns. This Pledge Agreement shall be governed by, and
construed and interpreted in accordance with, the laws of the State of
[Illinois] .

     16.  Notices.  Notices may be given by the parties hereto and shall be
considered effective when personally delivered or one day after delivery by
reputable overnight courier, given or addressed to the parties or their
permitted assigns at the following addresses or such other address as shall be
given in writing by either party to the other.

          To the Company:

               Focal Communications Corporation
               200 North LaSalle Street
               Chicago, Illinois  60601
               Attention: General Counsel

          To the Employee:

               Michael L. Mael
               9 Winterset Court
               Potomac, Maryland 20854

     17.  Counterparts.  This Pledge Agreement may be executed in two or more
counterparts, each of which shall be deemed an original, and in making proof of
this Pledge Agreement, it shall not be necessary to produce or account for more
than one such counterpart.

                                       6
<PAGE>

          IN WITNESS WHEREOF, the undersigned have caused this Pledge Agreement
to be duly executed and delivered as of the date first above written.

                              /s/ Michael L. Mael
                              ----------------------------------------
                              Michael L. Mael

                              FOCAL COMMUNICATIONS CORPORATION

                              By: /s/ Ronald Reising
                                 --------------------------------------
                                  Name:  Ronald Reising
                                        -------------------------------
                                  Title: Chief Financial Officer
                                        -------------------------------
<PAGE>

                                                                      SCHEDULE 1
                                                             to Pledge Agreement
                                                             -------------------

                          DESCRIPTION OF PLEDGED STOCK

                                               Stock Certificate    No. of
        Issuer              Class of Stock         Number(s)        Shares
        ------              --------------     -----------------    ------

Focal Communications         Common Stock           FC0376         150,000
     Corporation

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