There are no differences between ARPC 1.12 and MRPC 1.12.
Inapplicable.
The Alabama rule parallels the model rule and prevents a lawyer, absent consent from all parties after consultation, from representing any person "in connection with a matter which the lawyer participated personally and substantially as a judge or other adjudicative officer, arbitrator or law clerk to such a person. Adjudicative officer includes such officials as judges, referees, special masters, hearing officers and also lawyers who serve as part-time judges. In opinion RO-91-18, the General Counsel opined that the applicable standard for ARPC Rule 1.12 is "substantial responsibility" by the lawyer in his previous capacity as a judge, and some action by that judge upon the merits of said litigation." The term personally and substantially serves two purposes. First, it allows judges who leave multi-member courts to enter private practice to represent clients in matters pending before that court if the former judge did not participate in the matter in question. Second, it allows a former judge to represent a private client in a matter in which the former judge previously exercised remote or incidental administrative responsibility that did not effect the merits
ARPC Rule 1.12(b) prevents a judge from negotiating for employment with a party or an attorney for a party in a matter in which the judge is participating personally and substantially. However, law clerks, other adjudicative officers and arbitrators may, after notifying the judge, negotiate for employment with a party or attorney for a party in a manner in which they are substantially involved.
ARPC Rule 1.12(c) screening and waiver of positions are nearly identical to the screening and waiver positions in ARPC Rule 1.11. The only difference lies in paragraph (c)(2) which requires that written notice be given to the appropriate tribunal to allow it to ascertain compliance with Rule 1.12.
An arbitrator selected as a partisan of a party in a multi-member arbitration panel may subsequently represent that party.