(a) Except as stated in paragraph (d), a lawyer shall not represent anyone in connection with a matter in which the lawyer participated personally and substantially as a judge or other adjudicative officer or law clerk to such a person or as an arbitrator, mediator or other third-party neutral.

(b) A lawyer shall not negotiate for employment with any person who is involved as a party or as lawyer for a party in a matter in which the lawyer is participating personally and substantially as a judge or other adjudicative officer or as an arbitrator, mediator or other third-party neutral. A lawyer serving as a law clerk to a judge or other adjudicative officer may negotiate for employment with a party or lawyer involved in a matter in which the clerk is participating personally and substantially, but only after the lawyer has notified the judge or other adjudicative officer.

(c) If a lawyer is disqualified by paragraph (a), no lawyer in a firm with which that lawyer is associated may knowingly undertake or continue representation in the matter unless:

    (1) the disqualified lawyer is timely screened from any participation in the matter and is apportioned no part of the fee therefrom; and

    (2) written notice is promptly given to the parties and any appropriate tribunal to enable them to ascertain compliance with the provisions of this rule.

(d)An arbitrator selected as a partisan of a party in a multimember arbitration panel is not prohibited from subsequently representing that party.