Exhibit 99.3

                          REGISTRATION RIGHTS AGREEMENT

      This REGISTRATION RIGHTS AGREEMENT, dated as of July 7, 2003, is between
PROASSURANCE CORPORATION, a Delaware Corporation (together with any successor
entity, herein referred to as the "Issuer"), and the initial purchasers named in
the Purchase Agreement (as defined below) (the "Initial Purchasers") for whom
BANC OF AMERICA SECURITIES LLC and COCHRAN, CARONIA SECURITIES LLC are acting as
representatives (in such capacity, the "Representatives").

      Pursuant to the Purchase Agreement, dated July 1, 2003, between the Issuer
and the Initial Purchasers (the "Purchase Agreement"), the Initial Purchasers
have agreed to purchase from the Issuer up to $100,000,000 aggregate principal
amount of 3.90% Senior Convertible Debentures due 2023 (the "Convertible
Debentures"). The Convertible Debentures will be convertible into fully paid,
non-assessable shares of common stock of the Issuer, par value $0.01 per share
(the "Common Stock") on the terms, and subject to the conditions, set forth in
the Indenture (as defined herein). To induce the Initial Purchasers to purchase
the Convertible Debentures, the Issuer has agreed to provide the registration
rights set forth in this Agreement.

      The parties hereby agree as follows:

1.    DEFINITIONS.

      The terms defined in this Section 1, whenever used herein, shall have the
following meanings for all purposes of this Agreement:

      "Additional Amounts" shall have the meaning set forth in Section 3(a)
hereof.

      "Additional Amounts Payment Date" shall mean each interest payment date
with respect to the Convertible Debentures.

      "Affiliate" shall mean, with respect to any specified Person, an
"Affiliate," as defined in Rule 144 under the Securities Act, of such Person.

      "Agreement" shall mean this Registration Rights Agreement.

      "Broker-Dealer" shall mean any broker or dealer registered under the
Exchange Act.

      "Business Day" shall mean each day of the year other than a Saturday or
Sunday or other day on which banking institutions in The City of New York are
required or authorized by law or regulation to close.

      "Closing Date" shall mean the date of this Agreement.

      "Commission" shall mean the United States Securities and Exchange
Commission.

      "Common Stock" shall have the meaning set forth in the preamble hereto.

      "Control" shall mean, with respect to a Person, the possession, directly
or indirectly, of the power to direct or cause the direction of the management
or policies of such Person, whether through the ability to exercise voting
power, by contract or otherwise.

      "Conversion Price" shall have the meaning set forth in Section 1.1 of the
Indenture.

      "Convertible Debentures" shall have the meaning set forth in the preamble
hereto.

      "Effectiveness Period" shall have the meaning set forth in Section
2(a)(iii) hereof.

      "Effectiveness Target Date" shall have the meaning set forth in Section
2(a)(ii) hereof.

      "Exchange Act" shall mean the Securities Exchange Act of 1934, as amended.

      "Holder" shall mean a Person who owns, beneficially or otherwise,
Registrable Securities.

      "Indemnified Holder" shall have the meaning set forth in Section 6(a)
hereof.

      "Indenture" shall mean the Indenture, dated as of July 7, 2003, between
the Issuer and the Trustee, pursuant to which the Convertible Debentures are to
be issued, as such Indenture is amended, modified or supplemented from time to
time in accordance with the terms thereof.

      "Initial Placement" shall mean the issuance and sale by the Issuer of the
Convertible Debentures to the Initial Purchasers pursuant to the Purchase
Agreement.

      "Initial Purchasers" shall have the meaning set forth in the preamble
hereto.

      "Issuer" shall have the meaning set forth in the preamble hereto.

      "Majority of Holders" shall mean Holders holding more than 50% of the
aggregate principal amount of Convertible Debentures outstanding; provided that,
for purpose of this definition, a Holder of shares of Common Stock that
constitute Registrable Securities shall be deemed to hold an aggregate principal
amount of Convertible Debentures (in addition to the principal amount of
Convertible Debentures held by such Holder) equal to the product of (x) the
number of shares of such Common Stock that are Registrable Securities held by
such Holder and (y) the Conversion Price in effect at the time the conversion
pursuant to which such Common Stock was issued occurred, as determined in
accordance with the Indenture.

      "NASD" shall mean the National Association of Securities Dealers, Inc.

      "Offering Memorandum" shall mean the final offering memorandum of the
Issuer relating to the Initial Placement dated July 1, 2003.

      "Person" shall mean an individual, partnership, limited liability company,
corporation, unincorporated organization, trust, joint venture or a government
or agency or political subdivision thereof.

      "Prospectus" shall mean the prospectus included in a Shelf Registration
Statement, as amended or supplemented by any prospectus supplement and by all
other amendments thereto,


                                       2

including post-effective amendments, and all material incorporated by reference
into such Prospectus.

      "Record Holder" shall mean, with respect to any Additional Amounts Payment
Date, each Person who is a Holder on the record date with respect to the
interest payment date on which such Additional Amounts Payment Date shall occur.
In the case of a Holder of shares of Common Stock that constitute Registrable
Securities, "Record Holder" shall mean each Person who is a Holder of shares of
Common Stock that constitute Registrable Securities on the June 15 or December
15 immediately preceding the Additional Amounts Payment Date.

      "Registrable Securities" shall mean each Convertible Note and each share
of Common Stock issued upon conversion of Convertible Debentures until, in the
case of any such security, (A) the earliest of (i) its effective registration
under the Securities Act and resale in accordance with the Registration
Statement covering it, (ii) expiration of the holding period that would be
applicable thereto under Rule 144(k) under the Securities Act were it not held
by an Affiliate of the Issuer, (iii) its sale to the public pursuant to Rule 144
under the Securities Act, or (iv) the date such Convertible Note or share of
Common Stock issuable on conversion of Convertible Debentures shall have ceased
to be outstanding, and (B) as a result of the event or circumstance described in
any of the foregoing clauses (i), (ii) and (iii), the legends with respect to
transfer restrictions required under the Indenture are removed or removable in
accordance with the terms of the Indenture or such legend, as the case may be.

      "Registration Default" shall have the meaning set forth in Section 3(a)
hereof.

      "Registration Statement" shall mean any registration statement of the
Issuer that covers any of the Registrable Securities pursuant to the provisions
of this Agreement including the Prospectus, amendments and supplements to such
registration statement, including post-effective amendments, all exhibits, and
all materials incorporated by reference or explicitly deemed to be incorporated
by reference in such registration statement.

      "Representatives" shall have the meaning set forth in the preamble hereto.

      "Securities Act" shall mean the Securities Act of 1933, as amended.

      "Shelf Filing Deadline" shall have the meaning set forth in Section
2(a)(i) hereof.

      "Shelf Registration Statement" shall have the meaning set forth in Section
2(a)(i) hereof.

      "Suspension Period" shall have the meaning set forth in Section 4(b)(i)
hereof.

      "TIA" shall mean the Trust Indenture Act of 1939, as in effect on the date
the Indenture is qualified under that act.

      "Trustee" shall mean SouthTrust Bank.

      "Underwriting Majority" shall mean on any date, Holders holding at least
66 2/3% of the aggregate principal amount of the Registrable Securities
outstanding on such date; provided, that for the purpose of this definition, a
holder of shares of Common Stock that constitute Registrable


                                       3

Securities shall be deemed to hold an aggregate principal amount of Registrable
Securities (in addition to the principal amount of Convertible Debentures held
by such holder) equal to (x) the number of such shares of Common Stock that are
Registrable Securities held by such Holder multiplied by (y) the Conversion
Price in effect at the time the conversion pursuant to which such Common Stock
was issued occurred, as determined in accordance with the Indenture.

      "Underwritten Registration" or "Underwritten Offering" shall mean a
registration in which securities of the Issuer are sold to an underwriter for
reoffering to the public.

2.    SHELF REGISTRATION.

      (a)   The Issuer shall:

            (i)   not later than 120 days after the date hereof (the "Shelf
                  Filing Deadline"), cause to be filed a registration
                  statement pursuant to Rule 415 under the Securities Act
                  (the "Shelf Registration Statement"), which Shelf
                  Registration Statement shall provide for resales of all
                  Registrable Securities held by Holders that have provided
                  the information required pursuant to the terms of Section
                  2(b) hereof;

            (ii)  use its reasonable best efforts to cause the Shelf
                  Registration Statement to be declared effective by the
                  Commission as promptly as is practicable, but in no event
                  later than 180 days after the date hereof (the "Effectiveness
                  Target Date"); and

            (iii) subject to Section 4(b)(i) hereof, use its reasonable best
                  efforts to keep the Shelf Registration Statement continuously
                  effective, supplemented and amended as required by the
                  provisions of Section 4(b) hereof to the extent necessary to
                  ensure that (A) it is available for resales by the Holders of
                  Registrable Securities entitled to the benefit of this
                  Agreement and (B) conforms with the requirements of this
                  Agreement and the Securities Act and the rules and regulations
                  of the Commission promulgated thereunder as announced from
                  time to time for a period (the "Effectiveness Period") ending
                  on the earliest of:

                  (1)   two years after the last date of original issuance of
                        any of the Convertible Debentures;

                  (2)   the date when the Holders are able to sell all such
                        Registrable Securities immediately without restriction
                        pursuant to Rule 144(k) under the Securities Act;

                  (3)   the date when all of the Registrable Securities of those
                        Holders that have provided the information required
                        pursuant to the terms of Section 2(b) hereof are
                        registered under the Shelf Registration Statement and
                        disposed of in accordance with the terms of the Shelf
                        Registration Statement; or


                                       4

                  (4)   the date when all of the Registrable Securities of those
                        Holders that have provided the information required
                        pursuant to the terms of Section 2(b) hereof have ceased
                        to be outstanding (whether as a result of redemption,
                        repurchase and cancellation, conversion or otherwise).

      (b)   No Holder of Registrable Securities may include any of its
            Registrable Securities in the Shelf Registration Statement and
            related Prospectus pursuant to this Agreement unless such Holder
            furnishes to the Issuer in writing, after the date of the
            request, such information as the Issuer may reasonably request
            for use in connection with the Shelf Registration Statement or
            Prospectus or preliminary Prospectus included therein and in any
            application to be filed with or under state securities laws. In
            connection with all such requests for information from Holders of
            Registrable Securities, the Issuer shall notify such Holders of
            the requirements set forth in the preceding sentence.  No Holder
            of Registrable Securities shall be entitled to Additional Amounts
            pursuant to Section 3 hereof unless such Holder shall have
            provided all such reasonably requested information.  Each Holder
            as to which the Shelf Registration Statement is being effected
            agrees to furnish promptly to the Issuer all information required
            to be disclosed in order to make information previously furnished
            to the Issuer by such Holder not materially misleading.

3.    ADDITIONAL AMOUNTS.

      (a)   If:

            (i)   the Shelf Registration Statement has not been filed with
                  the Commission prior to or on the Shelf Filing Deadline,

            (ii)  the Shelf Registration Statement has not been declared
                  effective by the Commission prior to or on the
                  Effectiveness Target Date,

            (iii) subject to the provisions of Section 4(b)(i) hereof, the Shelf
                  Registration Statement is filed and declared effective but,
                  during the Effectiveness Period and after the Effectiveness
                  Target Date, shall thereafter cease to be effective or fail to
                  be usable for its intended purpose without being succeeded
                  within five Business Days by a post-effective amendment to the
                  Shelf Registration Statement, a prospectus supplement or a
                  report filed with the Commission pursuant to Section 13(a),
                  13(c), 14 or 15(d) of the Exchange Act that cures such failure
                  and, in the case of a post-effective amendment, is itself
                  declared effective within such five Business Day period,

            (iv)  prior to or on the 45th or 60th day, as the case may be, of
                  any Suspension Period, such suspension has not been
                  terminated, or

            (v)   the Suspension Periods exceed an aggregate of 120 days in
                  any 360-day period (each such event referred to in
                  foregoing clauses (i) through (v), a "Registration
                  Default"), then the Issuer hereby agrees to pay additional
                  amounts ("Additional Amounts") to each Holder from and
                  including the day


                                       5

                  following the Registration Default to but excluding the
                  earlier of (x) the day on which the Registration Default has
                  been cured or (y) the date the Shelf Registration Statement is
                  no longer required to be kept effective, accruing at a rate:

                  (A)   with respect to such Holder's Convertible Debentures,
                        for the first 90-day period during which a
                        Registration Default shall have occurred and be
                        continuing, an amount equal to 0.25% per annum on the
                        principal amount of such Holder's Convertible
                        Debentures, increasing to an amount per annum on the
                        principal amount of such Holder's Convertible
                        Debentures equal to 0.50% on the 91st day, provided
                        that in no event shall the Additional Amounts
                        pursuant to this clause accrue at a rate per annum
                        exceeding 0.50% of the principal amount of such
                        Holder's Convertible Debentures;

                  (B)   with respect to such Holder's Common Stock issued
                        upon conversion of Convertible Debentures, for the
                        first 90-day period during which a Registration
                        Default shall have occurred and be continuing, an
                        amount equal to 0.25% per annum on the principal
                        amount of such Holder's converted Convertible
                        Debentures, increasing to an amount per annum on the
                        principal amount of such Holder's converted
                        Convertible Debentures equal to 0.50% on the 91st
                        day, provided that in no event shall the Additional
                        Amounts pursuant to this clause accrue at a rate per
                        annum exceeding 0.50% of the principal amount of such
                        Holder's converted Convertible Debentures;

      (b)   All accrued Additional Amounts shall be paid in arrears to Record
            Holders by the Issuer on each Additional Amounts Payment Date by
            wire transfer of immediately available funds or by federal funds
            check. Following the cure of all Registration Defaults relating to
            any particular Convertible Note or share of Common Stock, the
            accrual of Additional Amounts with respect to such Convertible Note
            or share of Common Stock will cease.

      All obligations of the Issuer set forth in this Section 3 that are
      outstanding with respect to any Registrable Security at the time such
      Registrable Security ceases to be a Registrable Security shall survive
      until such time as all such obligations with respect to such Registrable
      Security shall have been satisfied in full.

      The Additional Amounts set forth above shall be the exclusive monetary
      remedy available to the Holders of Registrable Securities for such
      Registration Default.

4.    REGISTRATION PROCEDURES.

      (a)   In connection with the Shelf Registration Statement, the Issuer
            shall comply with all the provisions of Section 4(b) hereof and
            shall, in accordance with Section 2 hereof, prepare and file with
            the Commission a Shelf Registration Statement relating to the
            registration on any appropriate form under the Securities Act.


                                       6

      (b)   In connection with the Shelf Registration Statement and any
            Prospectus required by this Agreement to permit the sale or resale
            of Registrable Securities, the Issuer shall:

            (i)   Subject to any notice by the Issuer in accordance with this
                  Section 4(b) of the existence of any fact or event of the
                  kind described in Section 4(b)(iii)(D), use its reasonable
                  best efforts to keep the Shelf Registration Statement
                  continuously effective during the Effectiveness Period;
                  upon the occurrence of any event that would cause the Shelf
                  Registration Statement or the Prospectus contained therein
                  (A) to contain a material misstatement or omission or (B)
                  not be effective and usable for resale of Registrable
                  Securities during the Effectiveness Period, the Issuer
                  shall file promptly an appropriate amendment to the Shelf
                  Registration Statement, a prospectus supplement or a report
                  filed with the Commission pursuant to Section 13(a), 13(c),
                  14 or 15(d) of the Exchange Act, in the case of clause (A),
                  correcting any such misstatement or omission, and, in the
                  case of either clause (A) or (B), use its reasonable best
                  efforts to cause such amendment to be declared effective
                  and the Shelf Registration Statement and the related
                  Prospectus to become usable for their intended purposes as
                  soon as practicable thereafter. Notwithstanding the
                  foregoing, the Issuer may, by written notice to the
                  Holders, suspend the Holders' use of the Prospectus for a
                  period not to exceed an aggregate of 45 days in any 90-day
                  period (each such period, a "Suspension Period") if:

                  (x)   the Shelf Registration Statement is not usable solely
                        because a post-effective amendment to such Shelf
                        Registration Statement to incorporate financial
                        information with respect to the Issuer or any of its
                        subsidiaries is not yet effective and needs to be
                        declared effective to permit Holders to use the related
                        Prospectus; or

                  (y)   an event occurs and is continuing as a result of
                        which the Prospectus would, in the Issuer's
                        reasonable judgment, contain an untrue statement of a
                        material fact or omit to state a material fact
                        required to be stated therein or necessary to make
                        the statements therein not misleading, and the Issuer
                        reasonably determines in good faith that the
                        disclosure of such event at such time would have a
                        material adverse effect on the business of the Issuer
                        (and its subsidiaries, if any, taken as a whole);

                  provided, that (A) in the event the disclosure described in
                  clause (y) above relates to a previously undisclosed proposed
                  or pending material business transaction, the disclosure of
                  which would impede the Issuer's ability to consummate such
                  transaction, the Issuer may extend a Suspension Period from 45
                  days to 60 days and (B) the Suspension Periods shall not
                  exceed an aggregate of 120 days in any 360-day period. Each
                  Holder, by its acceptance of a Registrable Security, agrees to
                  hold in confidence any communication by the Issuer relating to
                  an event described in Section 4(b)(i)(y) or Section


                                       7

                  4(b)(iii)(D). The Issuer shall not be required to specify in
                  the written notice to the Holders the nature of the event
                  giving rise to the Suspension Period.

            (ii)  Prepare and file with the Commission such amendments and
                  post-effective amendments to the Shelf Registration Statement
                  as may be necessary to keep the Shelf Registration Statement
                  effective during the Effectiveness Period; cause the
                  Prospectus to be supplemented by any required Prospectus
                  supplement, and as so supplemented to be filed pursuant to
                  Rule 424 under the Securities Act, and to comply fully with
                  the applicable provisions of Rules 424 and 430A under the
                  Securities Act in a timely manner; and comply with the
                  provisions of the Securities Act with respect to the
                  disposition of all securities covered by the Shelf
                  Registration Statement during the applicable period in
                  accordance with the intended method or methods of distribution
                  by the sellers thereof set forth in the Shelf Registration
                  Statement or supplement to the Prospectus.

            (iii) Advise the underwriter(s), if any, and the selling Holders
                  promptly and, if requested by such Persons, to confirm such
                  advice in writing:

                  (A)   when the Prospectus or any Prospectus supplement or
                        post-effective amendment has been filed, and, with
                        respect to the Shelf Registration Statement or any
                        post-effective amendment thereto, when the same has
                        become effective;

                  (B)   of any request by the Commission for amendments to the
                        Shelf Registration Statement or amendments or
                        supplements to the Prospectus or for additional
                        information relating thereto;

                  (C)   of the issuance by the Commission of any stop order
                        suspending the effectiveness of the Shelf
                        Registration Statement under the Securities Act or of
                        the suspension by any state securities commission of
                        the qualification of the Registrable Securities for
                        offering or sale in any jurisdiction, or the
                        initiation of any proceeding for any of the preceding
                        purposes; or

                  (D)   of the existence of any fact or the happening of any
                        event, during the Effectiveness Period, that makes
                        any statement of a material fact made in the Shelf
                        Registration Statement, the Prospectus, any amendment
                        or supplement thereto, or any document incorporated
                        by reference therein untrue, or that requires the
                        making of any additions to or changes in the Shelf
                        Registration Statement or the Prospectus in order to
                        make the statements therein not misleading.

            If at any time the Commission shall issue any stop order suspending
            the effectiveness of the Shelf Registration Statement, or any state
            securities commission or other regulatory authority shall issue an
            order suspending the qualification or exemption from qualification
            of the Registrable Securities under state securities or


                                       8

            blue sky laws, the Issuer shall use its reasonable best efforts to
            obtain the withdrawal or lifting of such order at the earliest
            possible time.

            (iv)  Furnish to one counsel for the selling Holders and each of the
                  underwriter(s), if any, before filing with the Commission, a
                  copy of the Shelf Registration Statement and copies of any
                  Prospectus included therein or any amendments or supplements
                  to either of the Shelf Registration Statement or Prospectus
                  (other than documents incorporated by reference after the
                  initial filing of the Shelf Registration Statement), which
                  documents will be subject to the review of such counsel and
                  underwriter(s), if any, for a period of two Business Days, and
                  the Issuer will not file the Shelf Registration Statement or
                  Prospectus or any amendment or supplement to the Shelf
                  Registration Statement or Prospectus (other than documents
                  incorporated by reference) to which such counsel or the
                  underwriter(s), if any, shall reasonably object within two
                  Business Days after the receipt thereof.

            (v)   Subject to the execution of a confidentiality agreement
                  reasonably acceptable to the Issuer, make available at
                  reasonable times for inspection by one or more
                  representatives of the selling Holders, designated in
                  writing by a Majority of Holders whose Registrable
                  Securities are included in the Shelf Registration
                  Statement, any underwriter, if any, participating in any
                  distribution pursuant to the Shelf Registration Statement,
                  and any attorney or accountant retained by the Majority of
                  Holders or any of the underwriter(s), all financial and
                  other records, pertinent corporate documents and properties
                  of the Issuer as shall be reasonably necessary to enable
                  them to exercise any applicable due diligence
                  responsibilities, and cause the Issuer's officers,
                  directors, managers and employees to supply all information
                  reasonably requested by any such representative or
                  representatives of the selling Holders, underwriter,
                  attorney or accountant in connection with the Shelf
                  Registration Statement after the filing thereof and before
                  its effectiveness; provided, however, that any information
                  designated by the Issuer as confidential at the time of
                  delivery of such information shall be kept confidential by
                  the recipient thereof.

            (vi)  If reasonably requested by any selling Holders or the
                  underwriter(s), if any, incorporate in the Shelf Registration
                  Statement or Prospectus, pursuant to a supplement or
                  post-effective amendment if necessary, such information as
                  such selling Holders and underwriter(s), if any, shall, on the
                  basis of an opinion of a nationally recognized counsel
                  experienced in such matters, determine to be required to be
                  included therein by applicable law, including, without
                  limitation: (1) information relating to the "Plan of
                  Distribution" of the Registrable Securities, (2) information
                  with respect to the principal amount of Convertible Debentures
                  or number of shares of Common stock being sold, (3) the
                  purchase price being paid therefor and (4) any other terms of
                  the offering of the Registrable Securities to be sold in such
                  offering; and make all required filings of such Prospectus
                  supplement or post-effective amendment as soon as reasonably
                  practicable after the Issuer is notified of


                                       9

                  the matters to be incorporated in such Prospectus supplement
                  or post-effective amendment.

            (vii) Furnish to each selling Holder and each of the underwriter(s),
                  if any, without charge, at least one copy of the Shelf
                  Registration Statement, as first filed with the Commission,
                  and of each amendment thereto specifically naming such selling
                  Holder or underwriter (and any documents incorporated by
                  reference therein or exhibits thereto (or exhibits
                  incorporated in such exhibits by reference) as such Person may
                  request in writing).

            (viii)Deliver to each selling Holder and each of the
                  underwriter(s), if any, without charge, as many copies of the
                  Prospectus (including each preliminary prospectus) and any
                  amendment or supplement thereto specifically naming such
                  selling Holder or underwriter as such Persons reasonably may
                  request; subject to any notice by the Issuer in accordance
                  with this Section 4(b) of the existence of any fact or event
                  of the kind described in Section 4(b)(iii)(D), the Issuer
                  hereby consents to the use of the Prospectus and any amendment
                  or supplement thereto by each of the selling Holders and each
                  of the underwriter(s), if any, in connection with the offering
                  and the sale of the Registrable Securities covered by the
                  Prospectus or any amendment or supplement thereto.

            (ix)  If an underwriting agreement is entered into and the
                  registration is an Underwritten Registration in accordance
                  with Section 8 hereof, the Issuer shall:

                  (A)   upon request, furnish to each selling Holder and each
                        underwriter in such substance and scope as they may
                        reasonably request and as are customarily made by
                        issuers to underwriters in primary underwritten
                        offerings, upon the date of closing of any sale of
                        Registrable Securities in an Underwritten Registration:

                        (1)   a certificate, dated the date of such closing,
                              signed by (y) the Chairman of the Board or the
                              President and (z) the Chief Financial Officer of
                              the Issuer confirming, as of the date thereof,
                              such matters as such parties may reasonably
                              request;

                        (2)   opinions, each dated the date of such closing, of
                              counsel to the Issuer covering such matters as are
                              customarily covered in legal opinions to
                              underwriters in connection with primary
                              underwritten offerings of securities; and

                        (3)   customary comfort letters, dated the date of such
                              closing, from the Issuer's independent accountants
                              (and from any other accountants whose report is
                              contained or incorporated by reference in the
                              Shelf Registration Statement), in the customary
                              form and covering matters of the type customarily


                                       10

                              covered in comfort letters to underwriters in
                              connection with primary underwritten offerings of
                              securities;

                  provided, however, that the documents required pursuant
                  hereto need be addressed only to the underwriters and not
                  the selling Holders;

                  (B)   set forth in full in the underwriting agreement
                        indemnification provisions and procedures customary for
                        such Underwritten Registrations; and

                  (C)   deliver such other documents and certificates as may be
                        reasonably requested by such parties to evidence
                        compliance with clause (A) above and with any customary
                        conditions contained in the underwriting agreement or
                        other agreement entered into by the selling Holders
                        pursuant to this clause (ix).

            (x)   Before any public offering of Registrable Securities,
                  cooperate with the selling Holders, the underwriter(s), if
                  any, and their respective counsel in connection with the
                  registration and qualification of the Registrable
                  Securities under the securities or blue sky laws of such
                  jurisdictions as the selling Holders or underwriter(s), if
                  any, may reasonably request and do any and all other acts
                  or things reasonably necessary or advisable to enable the
                  disposition in such jurisdictions of the Registrable
                  Securities covered by the Shelf Registration Statement;
                  provided, however, that the Issuer shall not be required
                  (A) to register or qualify as a foreign corporation or a
                  dealer of securities where it is not now so qualified or to
                  take any action that would subject it to the service of
                  process in any jurisdiction where it is not now so subject
                  or (B) to subject itself to taxation in any such
                  jurisdiction if it is not now so subject.

            (xi)  Cooperate with the selling Holders and the underwriter(s), if
                  any, to facilitate the timely preparation and delivery of
                  certificates representing Registrable Securities to be sold
                  and not bearing any restrictive legends (unless required by
                  applicable securities laws); and enable such Registrable
                  Securities to be in such denominations and registered in such
                  names as the Holders or the underwriter(s), if any, may
                  reasonably request at least two Business Days before any sale
                  of Registrable Securities made by such underwriter(s).

            (xii) Use its reasonable best efforts to cause the Registrable
                  Securities covered by the Shelf Registration Statement to be
                  registered with or approved by such other U.S. governmental
                  agencies or authorities as may be required by applicable law
                  to enable the seller or sellers thereof or the underwriter(s),
                  if any, to consummate the disposition of such Registrable
                  Securities, subject to the proviso in clause (x) above.

            (xiii)Subject to Section 4(b)(i) hereof, if any fact or event
                  contemplated by Section 4(b)(iii)(D) hereof shall exist or
                  have occurred, use its reasonable


                                       11

                  best efforts to prepare a supplement or post-effective
                  amendment to the Shelf Registration Statement or related
                  Prospectus or any document incorporated therein by reference
                  or file any other required document so that, as thereafter
                  delivered to the purchasers of Registrable Securities, the
                  Prospectus will not contain an untrue statement of a material
                  fact or omit to state any material fact required to be stated
                  therein or necessary to make the statements therein not
                  misleading.

            (xiv) Provide CUSIP numbers for all Registrable Securities not later
                  than the effective date of the Shelf Registration Statement
                  and provide the Trustee under the Indenture with certificates
                  for the Convertible Debentures that are in a form eligible for
                  deposit with The Depository Trust Company.

            (xv)  Cooperate and assist in any filings required to be made with
                  the NASD and in the performance of any due diligence
                  investigation by any underwriter that is required to be
                  retained in accordance with the rules and regulations of the
                  NASD.

            (xvi) Otherwise use its reasonable best efforts to comply with all
                  applicable rules and regulations of the Commission and all
                  reporting requirements under the rules and regulations of the
                  Exchange Act.

            (xvii)Cause the Indenture to be qualified under the TIA not later
                  than the effective date of the Shelf Registration Statement
                  required by this Agreement, and, in connection therewith,
                  cooperate with the Trustee and the holders of Convertible
                  Debentures to effect such changes to the Indenture as may be
                  required for such Indenture to be so qualified in accordance
                  with the terms of the TIA; and execute and use its reasonable
                  best efforts to cause the Trustee thereunder to execute all
                  documents that may be required to effect such changes and all
                  other forms and documents required to be filed with the
                  Commission to enable such Indenture to be so qualified in a
                  timely manner.

           (xviii)Cause all Registrable Securities covered by the Shelf
                  Registration Statement to be listed or quoted, as the case may
                  be, on each securities exchange or automated quotation system
                  on which securities issued by the Issuer of the same series
                  are then listed or quoted, it being understood that the
                  Convertible Debentures will not be so listed or quoted and
                  nothing herein shall require the Issuer to effect any such
                  listing or quotation of the Convertible Debentures.

            (xix) Provide promptly to a Holder upon its written request each
                  document filed with the Commission pursuant to the
                  requirements of Section 13 or Section 15 of the Exchange Act
                  after the effective date of the Shelf Registration Statement,
                  unless such documents are available from EDGAR.

            (xx)  If requested by the underwriters in an Underwritten Offering,
                  make appropriate officers of the Issuer reasonably available
                  to the underwriters for


                                       12

                  meetings with prospective purchasers of the Registrable
                  Securities and prepare and present to potential investors
                  customary "road show" material in a manner consistent with
                  other new issuances of other securities similar to the
                  Registrable Securities.

      (c)   Each Holder agrees by acquisition of a Registrable Security that,
            upon receipt of any notice from the Issuer of the existence of any
            fact of the kind described in Section 4(b)(iii)(D) hereof, such
            Holder will, and will use its reasonable best efforts to cause any
            underwriter(s) in an Underwritten Offering to, forthwith discontinue
            disposition of Registrable Securities pursuant to the Shelf
            Registration Statement until:

            (i)   such Holder has received copies of the supplemented or
                  amended Prospectus contemplated by Section 4(b)(xiii)
                  hereof; or

            (ii)  such Holder is notified in writing by the Issuer that the use
                  of the Prospectus may be resumed, and has received copies of
                  any additional or supplemental filings that are incorporated
                  by reference in the Prospectus, unless such filings are
                  available on EDGAR.

            If so directed by the Issuer, each Holder will deliver to the Issuer
            (at the Issuer's expense) all copies, other than permanent file
            copies then in such Holder's possession, of the Prospectus covering
            such Registrable Securities that was current at the time of receipt
            of such notice of suspension.

      (d)   Each Holder who intends to be named as a selling Holder in the
            Shelf Registration Statement shall furnish promptly to the Issuer
            in writing after the date of the questionnaire requesting
            information in the form attached to the Offering Memorandum as
            Annex A, such information regarding such Holder and the proposed
            distribution by such Holder of its Registrable Securities as the
            Issuer may reasonably request for use in connection with the
            Shelf Registration Statement or Prospectus or preliminary
            Prospectus included therein. Holders that do not complete the
            questionnaire and deliver it to the Issuer shall not be named as
            selling securityholders in the Prospectus or preliminary
            Prospectus included in the Shelf Registration Statement and
            therefore shall not be permitted to sell any Registrable
            Securities pursuant to the Shelf Registration Statement. Each
            Holder who intends to be named as a selling Holder in the Shelf
            Registration Statement shall promptly furnish to the Issuer in
            writing all information required to be disclosed in order to make
            information previously furnished to the Issuer by such Holder not
            materially misleading and such other information as the Issuer
            may from time to time reasonably request in writing.

5.    REGISTRATION EXPENSES.

      (a)   Subject to Section 5(b) below, all expenses incident to the Issuer's
            performance of or compliance with this Agreement shall be borne by
            the Issuer regardless of whether a Shelf Registration Statement
            becomes effective, including, without limitation:


                                       13

            (i)   all registration and filing fees and expenses (other than
                  filings made by any Initial Purchasers or Holders with the
                  NASD);

            (ii)  all fees and expenses of compliance with federal securities
                  and state blue sky or securities laws;

            (iii) all expenses of printing (including printing of Prospectuses
                  and certificates for the shares of Common Stock to be issued
                  upon conversion of the Convertible Debentures), messenger and
                  delivery services, and telephone;

            (iv)  all reasonable fees and disbursements of counsel to the Issuer
                  and, subject to Section 5(b) below, the Holders of Registrable
                  Securities;

            (v)   all application and filing fees in connection with listing of
                  (or authorizing for quotation of) the shares of Common Stock
                  on a national securities exchange or automated quotation
                  system pursuant to the requirements hereof; and

            (vi)  all fees and disbursements of independent certified public
                  accountants of the Issuer (including the expenses of any
                  special audit and comfort letters required by or incident to
                  such performance).

            The Issuer shall bear its internal expenses (including, without
            limitation, all salaries and expenses of its officers and employees
            performing legal, accounting or other duties), the expenses of any
            annual audit and the fees and expenses of any Person, including
            special experts, retained by the Issuer.

      (b)   In connection with the Shelf Registration Statement required by
            this Agreement, the Issuer shall reimburse the Initial Purchasers
            and the Holders of Registrable Securities being registered
            pursuant to the Shelf Registration Statement, as applicable, for
            the reasonable fees and disbursements of not more than one
            counsel, which shall be Shearman & Sterling LLP or such other
            counsel chosen by a Majority of Holders for whose benefit the
            Shelf Registration Statement is being prepared and is reasonably
            acceptable to the Issuer. The Issuer shall not be required to pay
            any underwriter discount, commission or similar fees related to
            the sale of the Registrable Securities.

6.    INDEMNIFICATION AND CONTRIBUTION.

      (a)   The Issuer shall indemnify and hold harmless each Holder, such
            Holder's directors, officers, employees, representatives, agents
            and each person, if any, who controls such Holder within the
            meaning of Section 15 of the Securities Act (each, an
            "Indemnified Holder"), from and against any loss, claim, damage
            or liability, joint or several, or any action in respect thereof
            (including, but not limited to, any loss, claim, damage,
            liability or action relating to resales of the Registrable
            Securities), to which such Indemnified Holder may become subject,
            under the Securities Act or otherwise, insofar as any such loss,
            claim, damage, liability or action arises out of, or is based
            upon:


                                       14

            (i)   any untrue statement or alleged untrue statement of a material
                  fact contained in the Shelf Registration Statement or
                  Prospectus or any amendment or supplement thereto; or

            (ii)  the omission or alleged omission to state in the Shelf
                  Registration Statement any material fact required to be stated
                  therein or necessary to make the statements therein not
                  misleading, or the omission or alleged omission to state in
                  the Prospectus any material fact required to be stated therein
                  or necessary to make the statements therein, in the light of
                  the circumstances under which they were made, not misleading;

            and shall reimburse each Indemnified Holder promptly upon demand for
            any legal or other expenses, subject to Section 6(c) below,
            reasonably incurred by such Indemnified Holder in connection with
            investigating or defending or preparing to defend against any such
            loss, claim, damage, liability or action as such expenses are
            incurred; provided, however, that the Issuer shall not be liable in
            any such case to the extent that any such loss, claim, damage,
            liability or action arises out of, or is based upon, any untrue
            statement or alleged untrue statement or omission or alleged
            omission made in the Shelf Registration Statement or Prospectus or
            amendment or supplement thereto in reliance upon and in conformity
            with written information furnished to the Issuer by or on behalf of
            any Holder (or its related Indemnified Holder) specifically for use
            therein; provided, further, that as to any preliminary Prospectus,
            this indemnity agreement shall not inure to the benefit of any
            Indemnified Holder or any officer, employee, representative, agent,
            director or controlling person of that Indemnified Holder on account
            of any loss, claim, damage, liability or action arising from the
            sale of the Registrable Securities sold pursuant to the Shelf
            Registration Statement to any person by such Indemnified Holder if
            (i) that Indemnified Holder failed to send or give a copy of the
            Prospectus, as the same may be amended or supplemented, to that
            person within the time required by the Securities Act and (ii) the
            untrue statement or alleged untrue statement of a material fact or
            omission or alleged omission to state a material fact in such
            preliminary Prospectus was corrected in the Prospectus or a
            supplement or amendment thereto, as the case may be, unless in each
            case, such failure resulted from noncompliance by the Issuer with
            Section 4. The foregoing indemnity agreement is in addition to any
            liability that the Issuer may otherwise have to any Indemnified
            Holder.

      (b)   Each Holder, severally and not jointly, shall indemnify and hold
            harmless the Issuer, its directors, officers, employees,
            representatives, agents and each person, if any, who controls the
            Issuer within the meaning of Section 15 of the Securities Act or
            Section 20 of the Exchange Act, from and against any loss, claim,
            damage or liability, joint or several, or any action in respect
            thereof, to which the Issuer or any such officer, employee,
            representative, agent or controlling person may become subject,
            insofar as any such loss, claim, damage or liability or action
            arises out of, or is based upon:


                                       15

            (i)   any untrue statement or alleged untrue statement of any
                  material fact contained in the Shelf Registration Statement or
                  Prospectus or any amendment or supplement thereto; or

            (ii)  the omission or the alleged omission to state in the Shelf
                  Registration Statement any material fact required to be stated
                  therein or necessary to make the statements therein not
                  misleading, or the omission or alleged omission to state in
                  the Prospectus any material fact required to be stated therein
                  or necessary to make the statements therein, in light of the
                  circumstances under which they were made, not misleading,

            but in each case only to the extent that such untrue statement or
            alleged untrue statement or omission or alleged omission was made in
            reliance upon and in conformity with written information furnished
            to the Issuer by or on behalf of such Holder (or its related
            Indemnified Holder) specifically for use therein, and shall
            reimburse the Issuer and any such director, officer, employee,
            representative, agent or controlling person promptly upon demand for
            any legal or other expenses, subject to Section 6(c) below,
            reasonably incurred by the Issuer and any such director, officer,
            employee, representative, agent or controlling person in connection
            with investigating or defending or preparing to defend against any
            such loss, claim, damage, liability or action as such expenses are
            incurred. The foregoing indemnity agreement is in addition to any
            liability that any Holder may otherwise have to the Issuer and any
            such director, officer, employee or controlling person.

      (c)   Promptly after receipt by an indemnified party under this Section
            6 of notice of any claim or the commencement of any action, the
            indemnified party shall, if a claim in respect thereof is to be
            made against the indemnifying party under this Section 6, notify
            the indemnifying party in writing of the claim or the
            commencement of that action; provided, however, that the failure
            to notify the indemnifying party shall not relieve it from any
            liability that it may have under this Section 6 except to the
            extent it has been materially prejudiced by such failure and,
            provided, further, that the failure to notify the indemnifying
            party shall not relieve it from any liability that it may have to
            an indemnified party otherwise than under this Section 6. If any
            such claim or action shall be brought against an indemnified
            party, and it shall notify the indemnifying party thereof, the
            indemnifying party shall be entitled to participate therein and,
            to the extent that it wishes, jointly with any other similarly
            notified indemnifying party, to assume the defense thereof with
            counsel satisfactory to the indemnified party. After notice from
            the indemnifying party to the indemnified party of its election
            to assume the defense of such claim or action, the indemnifying
            party shall not be liable to the indemnified party under this
            Section 6 for any legal or other expenses subsequently incurred
            by the indemnified party in connection with the defense thereof
            other than reasonable costs of investigation; provided, however,
            that the indemnified party shall have the right to employ counsel
            to represent jointly the indemnified party and its respective
            directors, employees, officers and controlling persons who may be
            subject to liability arising out of any claim in respect of which
            indemnity may be sought by the indemnified party against the
            indemnifying party under this Section 6 if such indemnified party
            shall have been advised in writing that


                                       16

            the representation of such indemnified party and those directors,
            employees, officers and controlling persons by the same counsel
            would be inappropriate under applicable standards of professional
            conduct due to actual or potential differing interests between them,
            and in that event the fees and expenses of such separate counsel
            shall be paid by the indemnifying party. It is understood that the
            indemnifying party shall not be liable for the fees and expenses of
            more than one separate firm (in addition to local counsel in each
            jurisdiction) for all indemnified parties in connection with any
            proceeding or related proceedings. Each indemnified party, as a
            condition of the indemnity agreements contained in Sections 6(a) and
            6(b), shall use its reasonable best efforts to cooperate with the
            indemnifying party in the defense of any such action or claim. No
            indemnifying party shall:

            (i)   without the prior written consent of the indemnified
                  parties (which consent shall not be unreasonably withheld)
                  effect any settlement of any pending or threatened action
                  in respect of which indemnification or contribution may be
                  sought hereunder (whether or not the indemnified parties
                  are actual or potential parties to such claim or action)
                  unless such settlement, compromise or consent includes an
                  unconditional release of such indemnified party from all
                  liability arising out of such claim, action, suit or
                  proceeding and does not include a statement as to or an
                  admission of fault, culpability or failure to act by or on
                  behalf of any indemnified party, or

            (ii)  be liable for any settlement of any such action effected
                  without its written consent (which consent shall not be
                  unreasonably withheld), but if settled with its written
                  consent or if there be a final judgment for the plaintiff in
                  any such action, the indemnifying party agrees to indemnify
                  and hold harmless any indemnified party from and against any
                  loss of liability by reason of such settlement or judgment in
                  accordance with this Section 6.

      (d)   If the indemnification provided for in this Section 6 is
            unavailable or insufficient to hold harmless an indemnified party
            under subsections (a) or (b) above, then each indemnifying party
            shall contribute to the amount paid or payable by such
            indemnified party as a result of the losses, claims, damages or
            liabilities (or actions in respect thereof) referred to in
            subsection (a) or (b) above (i) in such proportion as is
            appropriate to reflect the relative benefits received by the
            indemnifying party or parties on the one hand and the indemnified
            party on the other from the Initial Placement (which in the case
            of the Issuer shall be deemed to be equal to the total net
            proceeds from the Initial Placement received by the Issuer), or
            (ii) if the allocation provided by the foregoing clause (i) is
            not permitted by applicable law, in such proportion as is
            appropriate to reflect not only the relative benefits referred to
            in clause (i) above but also the relative fault of the
            indemnifying party or parties on the one hand and the indemnified
            party on the other in connection with the statements or omissions
            that resulted in such losses, claims, damages or liabilities (or
            actions in respect thereof) as well as any other relevant
            equitable considerations. The relative fault of the parties shall
            be determined by reference to, among other things, whether the
            untrue or alleged untrue statement of a material fact or the
            omission or alleged omission to state a material fact relates to
            information supplied


                                       17

            by the Issuer on the one hand or such Holder or such other
            indemnified party, as the case may be, on the other, and the
            parties' relative intent, knowledge, access to information and
            opportunity to correct or prevent such statement or omission. The
            amount paid by an indemnified party as a result of the losses,
            claims, damages or liabilities referred to in the first sentence of
            this subsection (d) shall be deemed to include any legal or other
            expenses reasonably incurred by such indemnified party in connection
            with investigating or defending any action or claim which is the
            subject of this subsection (d). Notwithstanding any other provision
            of this Section 6(d), the Holders of the Registrable Securities
            shall not be required to contribute any amount in excess of the
            amount by which the gross proceeds received by such Holders from the
            sale of the Registrable Securities pursuant to the Shelf
            Registration Statement exceeds the amount of damages which such
            Holders have otherwise been required to pay by reason of such untrue
            or alleged untrue statement or omission or alleged omission. No
            person guilty of fraudulent misrepresentation (within the meaning of
            Section 11(f) of the Securities Act) shall be entitled to
            contribution from any person who was not guilty of such fraudulent
            misrepresentation. For purposes of this paragraph (d), each person,
            if any, who controls such indemnified party within the meaning of
            the Securities Act or the Exchange Act shall have the same rights to
            contribution as such indemnified party and each person, if any, who
            controls the Issuer within the meaning of the Securities Act or the
            Exchange Act shall have the same rights to contribution as the
            Issuer.

      (e)   The indemnity and contribution provisions contained in this
            Section 6 shall remain operative and in full force and effect
            regardless of (i) any termination of this Agreement, (ii) any
            investigation made by or on behalf of any Initial Purchaser, any
            Holder or any person controlling any Initial Purchaser or any
            Holder, or by or on behalf of the Issuer, its officers or
            directors or any person controlling the Issuer, and (iii) any
            sale of Registrable Securities pursuant to the Shelf Registration
            Statement.

7.    RULE 144A.

      In the event the Issuer is not subject to Section 13 or 15(d) of the
Exchange Act, the Issuer hereby agrees with each Holder, for so long as any
Registrable Securities remain outstanding and are "restricted securities" within
the meaning of Rule 144 under the Securities Act, to make available, upon
request, to any Holder or beneficial owner of Registrable Securities in
connection with any sale thereof and any prospective purchaser of such
Registrable Securities from such Holder or beneficial owner, the information
required by Rule 144A(d)(4) under the Securities Act in order to permit resales
of such Registrable Securities pursuant to Rule 144A.

8.    UNDERWRITTEN REGISTRATIONS.

      (a)   The Underwriting Majority may sell its Registrable Securities in an
            Underwritten Offering pursuant to the Shelf Registration Statement
            only with the Issuer's consent, which consent may be granted or
            withheld in the Issuer's sole discretion.

      (b)   No Holder may participate in any Underwritten Registration
            hereunder unless such Holder:


                                       18

            (i)   agrees to sell such Holder's Registrable Securities on the
                  basis provided in any underwriting arrangements approved by
                  the Persons entitled hereunder to approve such arrangements;
                  and

            (ii)  completes and executes all reasonable questionnaires, powers
                  of attorney, indemnities, underwriting agreements, lock-up
                  letters and other documents reasonably required under the
                  terms of such underwriting arrangements.

      (c)   In any such Underwritten Offering, the investment banker or
            investment bankers and manager or managers that will administer the
            offering will be selected by a Majority of Holders whose Registrable
            Securities are included in such Underwritten Offering; provided,
            that such investment bankers and managers must be reasonably
            satisfactory to the Issuer.

9.    MISCELLANEOUS.

      (a)   Remedies.  The Issuer acknowledges and agrees that any failure by
            the Issuer to comply with its obligations under Section 2 hereof
            may result in material irreparable injury to the Holders for
            which there is no adequate remedy at law, that it will not be
            possible to measure damages for such injuries precisely and that,
            in the event of any such failure, any Holder may obtain such
            relief as may be required to specifically enforce the Issuer's
            obligations under Section 2 hereof.  The Issuer further agrees to
            waive the defense in any action for specific performance that a
            remedy at law would be adequate.

      (b)   No Inconsistent Agreements.  The Issuer will not, on or after the
            date of this Agreement, enter into any agreement with respect to
            its securities that is inconsistent with the rights granted to
            the Holders in this Agreement or otherwise conflicts with the
            provisions hereof.  Other than as disclosed in the Purchase
            Agreement and the Offering Memorandum, the Issuer has not
            previously entered into any agreement (which has not expired or
            been terminated) granting any registration rights with respect to
            its securities to any Person, which rights conflict with the
            provisions hereof.

      (c)   Adjustments Affecting Registrable Securities. The Issuer shall not,
            directly or indirectly, take any action with respect to the
            Registrable Securities as a class that would adversely affect the
            ability of the Holders of Registrable Securities to include such
            Registrable Securities in a registration undertaken pursuant to this
            Agreement.

      (d)   Amendments and Waivers. This Agreement may not be amended,
            modified or supplemented, and waivers or consents to or
            departures from the provisions hereof may not be given, unless
            the Issuer has obtained the written consent of a Majority of
            Holders affected by such amendment, modification, supplement,
            waiver or consent; provided, however, that no amendment,
            modification, supplement, waiver or consent to or departure from
            the provisions of Section 6 that materially and adversely affects
            a Holder hereof shall be effective as against any such Holder of
            Registrable Securities unless consented to in writing by such
            Holder; provided,


                                       19

            further, that with respect to any matter that directly or indirectly
            adversely affects the rights of any Initial Purchaser hereunder
            (other than in its capacity as a Holder), the Issuer shall obtain
            the written consent of each such Initial Purchaser against which
            such amendment, modification, supplement, waiver or consent is to be
            effective.

      (e)   Notices. All notices and other communications provided for or
            permitted hereunder shall be made in writing by hand-delivery,
            first-class mail (registered or certified, return receipt
            requested), telex, telecopier, or air courier guaranteeing overnight
            delivery:

            (i)   if to a Holder, at the address set forth on the records of
                  the registrar under the Indenture or the transfer agent of
                  the Common Stock, as the case may be; and

            (ii)  if to the Issuer:

                        ProAssurance Corporation
                        100 Brookwood Place
                        Birmingham, AL  35209
                        Attention: Dr. A. Derrill Crowe, Chairman
                        Fax No.: (205)877-4405


                  with a copy to:


                        Burr & Forman LLP
                        3100 South Trust Tower
                        420 North 20th Street
                        Birmingham, AL 35203
                        Attention: Jack P. Stephenson
                        Fax No.: (205) 458-5100


            (iii) if to the Initial Purchasers:

                        Banc of America Securities LLC
                        Cochran, Caronia Securities LLC
                        c/o Banc of America Securities LLC
                        9 West 57th Street
                        New York, New York 10019
                        Attention: Robert Giammarco, Managing Director
                        Fax No.: (212) 847-5084


                                       20

                  with a copy to:


                        Shearman & Sterling LLP
                        Commerce Court West
                        Suite 4405, P.O. Box 247
                        Toronto, Ontario M5L 1E8
                        Attention: Christopher Cummings
                        Fax No.: (416) 360-2958


            All such notices and communications shall be deemed to have been
            duly given: at the time delivered by hand, if personally delivered;
            five Business Days after being deposited in the mail, postage
            prepaid, if mailed; when answered back, if telexed; when receipt
            acknowledged, if telecopied or delivered via facsimile; and on the
            next Business Day, if timely delivered to an air courier
            guaranteeing overnight delivery.

            Copies of all such notices, demands or other communications shall be
            concurrently delivered by the Person giving the same to the Trustee
            or the transfer agent, as applicable, at the address specified in
            the Indenture.

            A document or notice shall be deemed to have been furnished to the
            Holders of the Registrable Securities if it is provided to the
            registered holders of the Registrable Securities at the address set
            forth in clause (i) above.

      (f)   Successors and Assigns.  This Agreement shall inure to the
            benefit of and be binding upon the successors, assigns and
            transferees of each of the parties, including without limitation
            and without the need for an express assignment, subsequent
            Holders of Registrable Securities; provided, however, that (i)
            nothing contained herein shall be deemed to permit any
            assignment, transfer or other disposition of Registrable
            Securities in violation of the terms of the Purchase Agreement or
            the Indenture and (ii) this Agreement shall not inure to the
            benefit of or be binding upon a successor or assign of a Holder
            unless and to the extent such successor or assign acquired
            Registrable Securities from such Holder. If any transferee of any
            Holder shall acquire Registrable Securities, in any manner,
            whether by operation of law or otherwise, such Registrable
            Securities shall be held subject to all of the terms of this
            Agreement, and by taking and holding such Registrable Securities
            such person shall be conclusively deemed to have agreed to be
            bound by and to perform all of the terms and provisions of this
            Agreement and such Person shall be entitled to receive the
            benefits hereof. The Initial Purchasers (in their capacity as
            Initial Purchasers) shall have no liability or obligation to the
            Issuer with respect to any failure by a Holder to comply with, or
            breach by any Holder of, any of the obligations of such Holder
            under this Agreement.

      (g)   Purchases and Sales of Convertible Debentures. The Issuer shall not,
            and shall use its reasonable best efforts to cause its subsidiaries
            within its Control not to, resell or otherwise transfer any
            Convertible Debentures acquired by the Issuer or such


                                       21

            subsidiaries, except pursuant to an effective registration statement
            under the Securities Act or an exemption therefrom.

      (h)   Third Party Beneficiaries. The Holders shall be third-party
            beneficiaries to the agreements made hereunder between the Issuer
            and the Initial Purchasers, and such Initial Purchasers, so long as
            they are also Holders, shall have the right to enforce such
            agreements directly to the extent they deem such enforcement
            necessary or advisable to protect their rights or the rights of
            Holders hereunder.

      (i)   Counterparts. This Agreement may be executed in any number of
            counterparts and by the parties hereto in separate counterparts,
            each of which when so executed shall be deemed to be an original and
            all of which taken together shall constitute one and the same
            agreement.

      (j)   Securities Held by the Issuer or its Affiliates.  Whenever the
            consent or approval of Holders of a specified percentage of
            Registrable Securities is required hereunder, Registrable
            Securities held by the Issuer or its affiliates (as such term is
            defined in Rule 405 under the Securities Act) shall not be deemed
            outstanding and, therefore, shall not be counted in determining
            whether such consent or approval was given by the Holders of such
            required percentage.

      (k)   Headings. The headings in this Agreement are for convenience of
            reference only and shall not limit or otherwise affect the meaning
            hereof.

      (l)   Governing Law.  THIS AGREEMENT SHALL BE GOVERNED BY, AND
            CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK.

      (m)   Severability. If any one or more of the provisions contained herein,
            or the application thereof in any circumstance, is held invalid,
            illegal or unenforceable, the validity, legality and enforceability
            of any such provision in every other respect and of the remaining
            provisions contained herein shall not be affected or impaired
            thereby.

      (n)   Entire Agreement.  This Agreement, together with the Purchase
            Agreement and the Indenture, is intended by the parties as a
            final expression of their agreement and intended to be a complete
            and exclusive statement of the agreement and understanding of the
            parties hereto in respect of the subject matter contained
            herein.  There are no restrictions, promises, warranties or
            undertakings, other than those set forth or referred to herein
            with respect to the registration rights granted by the Issuer
            with respect to the Registrable Securities.  This Agreement
            supersedes all prior agreements and understandings between the
            parties with respect to such subject matter.


                                       22

      IN WITNESS WHEREOF, the parties have executed this Agreement as of the
date first written above.

                                    Very truly yours,

                                    PROASSURANCE CORPORATION

                                    By: /s/ Victor T. Adamo
                                        ----------------------------------------
                                    Name: Victor T. Adamo
                                    Title: President and Chief Operating Officer

                                    By: /s/ Frank B. O'Neil
                                        ----------------------------------------
                                    Name: Frank B. O'Neil
                                    Title: Senior Vice President and Assistant
                                           Secretary

      The foregoing Registration Rights Agreement is hereby confirmed and
accepted as of the date first above written.

                                    BANC OF AMERICA SECURITIES LLC, as
                                    representative of the Initial Purchasers

                                    By: /s/ Robert Giammarco
                                        ----------------------------------------
                                    Name: Robert Giammarco
                                    Title: Managing Director


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