Massachusetts Regulations 452.1.18

(2) In any proceeding before the Department, any person not admitted to practice before the courts of the Commonwealth may appear and act for himself, or for a partnership of which he is a member, or for a corporation of which he is an officer, or for anybody from whom he has written authorization to represent on file with the Department on a form prescribed by the Department.

(3) An attorney, or other authorized representative may, without leave, withdraw as representative by filing a written notice of withdrawal, with copies to all parties, provided that such notice is accompanied by the appearance of a successor representative. Under all other circumstances, leave of the administrative judge, or administrative law judge having jurisdiction over an active proceeding must be obtained. In cases where no judge has active jurisdiction leave must be obtained from the office the senior judge.

(4) Notice of any change of attorney or other qualified representative shall be given promptly, in writing, to the Department.

(5) The Department may, for cause, deny or suspend the right of any person to practice before it.