Maryland Code, Courts and Judicial Proceedings § 3-1804

(1) To a potential victim or to the appropriate law enforcement authority to the extent that the mediator, party, or person reasonably believes the disclosure is necessary to prevent bodily harm or death to the potential victim;

(2) To the extent necessary to assert or defend against allegations of mediator misconduct or negligence;

(3) To the extent necessary to assert or defend against allegations of professional misconduct or malpractice by a party or any person who was present or who otherwise participated in the mediation at the request of a party, except that a mediator may not be compelled to participate in a proceeding arising out of the disclosure; or

(4) To the extent necessary to assert or defend against a claim or defense that, because of fraud, duress, or misrepresentation, a contract arising out of a mediation should be rescinded or damages should be awarded.