Maryland Code, State Government § 20-1043

(a) To obtain relief with respect to an alleged civil rights violation, an action shall be commenced not later than 3 years after the discovery, occurrence, or termination, whichever occurs last, of the alleged civil rights violation.

(b) To obtain relief with respect to an alleged breach of a conciliation or settlement agreement entered into under this title, an action shall be commenced not later than 3 years after the discovery, occurrence, or termination of the alleged breach.