Maryland Code, Commercial Law § 13-303

(1) The sale, lease, rental, loan, or bailment of any consumer goods, consumer realty, or consumer services;

(2) The offer for sale, lease, rental, loan, or bailment of consumer goods, consumer realty, or consumer services;

(3) The offer for sale of course credit or other educational services;

(4) The extension of consumer credit;

(5) The collection of consumer debts; or

(6) The purchase or offer for purchase of consumer goods or consumer realty from a consumer by a merchant whose business includes paying off consumer debt in connection with the purchase of any consumer goods or consumer realty from a consumer.