Maryland Code, Corporations and Associations § 3-514

(a) Any person who transacts business in the name or for the account of a corporation knowing that its charter has been forfeited and has not been revived is guilty of a misdemeanor and on conviction is subject to a fine of not more than $500.

(b) For the purpose of this section, unless there is clear evidence to the contrary, a person who was an officer or director of a corporation at the time its charter was forfeited is presumed to know of the forfeiture.

(c) A prosecution for violation of the provisions of this section may not be instituted after the date articles of revival of the corporation are filed.