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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, arbitrator, mediator, or other third-party neutral, or law clerk to such a person unless all parties to the current proceeding give informed consent, confirmed in writing.
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 or an arbitrator, mediator or other third-party neutral 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 or an arbitrator, or mediator or other third-party neutral.
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.
An arbitrator selected as a partisan of a party in a multimember arbitration panel is not prohibited from subsequently representing that party.
 This Rule generally parallels Rule 1.11. The term “personally and substantially” signifies that a judge who was a member of a multimember court, and thereafter left judicial office to practice law, is not prohibited by these Rules from representing a client in a matter pending in the court, but in which the former judge did not participate. So also the fact that a former judge exercised administrative responsibility in a court does not prevent the former judge from acting as a lawyer in a matter where the judge had previously exercised remote or incidental administrative responsibility that did not affect the merits. Compare the Comment to Rule 1.11. The lawyer should also consider applicable statutes and regulations, e.g. G. L. c. 268A . The term “adjudicative officer” includes such officials as magistrates, referees, special masters, hearing officers and other parajudicial officers. Canon 6A(2) of the Code of Judicial Conduct (S.J.C. Rule 3:09) provides that a retired judge recalled to active service “shall not, for a period of six months following the date of retirement, resignation, or most recent service as a retired judge pursuant to G. L. c. 32, §§ 65E-65G , perform court-connected dispute resolution services except on a pro bono publico basis, enter an appearance, or accept an appointment to represent any party in any court of the Commonwealth.”
 Like former judges, lawyers who have served as arbitrators, mediators or other third-party neutrals may be asked to represent a client in a matter in which the lawyer participated personally and substantially. This Rule forbids such representation unless all of the parties to the proceedings give their informed consent, confirmed in writing. See Rule 1.0(f) and (c). Other law or codes of ethics governing third-party neutrals may impose more stringent standards of personal or imputed disqualification. See Rule 2.4.
 Although lawyers who serve as third-party neutrals do not have information concerning the parties that is protected under Rule 1.6, they typically owe the parties an obligation of confidentiality under law or codes of ethics governing third-party neutrals. Thus, paragraph (c) provides that conflicts of the personally disqualified lawyer will be imputed to other lawyers in a law firm unless the conditions of this paragraph are met.
 Requirements for screening procedures are stated in Rule 1.10(f). Paragraph (c)(1) does not prohibit the screened lawyer from receiving a salary or partnership share established by prior independent agreement, but that lawyer may not receive compensation directly related to the matter in which the lawyer is disqualified.
 Notice, including a description of the screened lawyer’s prior representation and of the screening procedures employed, generally should be given as soon as practicable after the need for screening becomes apparent.
 Law clerks who serve before they are admitted to the bar are subject to the limitations stated in Rule 1.12(b). For purposes of this Rule, the term “law clerk” shall include judicial interns and others who provide similar legal assistance to a judge or other adjudicative officer or to an arbitrator, mediator, or other third-party neutral.