Mich. Ct. R. 9.125
A person is absolutely immune from suit for statements and communications transmitted solely to the administrator, the commission, or the commission staff, or given in an investigation or proceeding on alleged misconduct or reinstatement. The administrator, legal counsel, investigators, members of hearing panels, masters, voluntary investigators, fee arbitrators, mentors, practice monitors, the commission, the board, and their staffs are absolutely immune from suit for conduct arising out of the performance of their duties.
A medical or psychological expert who administers testing or provides a report pursuant to MCR 9.114(C) or MCR 9.121 is absolutely immune from suit for statements and communications transmitted solely to the administrator, the commission, or the commission staff, or given in an investigation or formal disciplinary proceeding.
Mich. Ct. R. 9.125