Maryland Code, Courts and Judicial Proceedings § 5-116

(1) 180 days after the date of completion of any opt-out period in a class action in which the claimant is a member of the class, including an opt-out period provided for in a settlement agreement;

(2) 180 days after the completion of any nonbinding mediation in a class action in which the claimant is a member of the class; or

(3) A period of limitations that would otherwise apply.