Md. Code, Real Property § 14-113

(a) Any deed by a Maryland corporation, having an effective date before October 1, 2018, containing a certification by the person executing the deed on behalf of the corporation to the effect that the grant is not part of a transaction in which there is a sale, lease, exchange, or other transfer of all or substantially all of the property and assets of the corporation, shall be considered valid and effective whether or not there has been compliance with the procedures of Title 3, Subtitle 1 of the Corporations and Associations Article despite the fact the grant is in fact part of such a transaction.

(b) Any deed by a Maryland corporation, executed and recorded before January 1, 1979 is not invalid solely because of noncompliance with those procedures unless proceedings to set the deed aside were commenced on or before July 1, 1979.