Maryland Code, Commercial Law § 13-101

(b)(1) “Advertisement” means the publication, dissemination, or circulation of any oral or written matter, including labeling, which directly or indirectly tends to induce a person to enter into an obligation, sign a contract, or acquire title or interest in any merchandise, real property, intangibles, or service.

(2) “Advertisement” includes every device to disguise any form of business solicitation by using:

(c)(1) “Consumer” means an actual or prospective purchaser, lessee, or recipient of consumer goods, consumer services, consumer realty, or consumer credit.

(2) “Consumer” includes:

(d)(1) “Consumer credit”, “consumer debts”, “consumer goods”, “consumer realty”, and “consumer services” mean, respectively, credit, debts or obligations, goods, real property, and services which are primarily for personal, household, family, or agricultural purposes.

(2) “Consumer goods” and “consumer services” include, respectively, goods and services which are purchased, rented, or leased by a fraternal, religious, civic, patriotic, educational, or charitable organization for the benefit of the members of the organization.

(g)(1) “Merchant” means a person who directly or indirectly either offers or makes available to consumers any consumer goods, consumer services, consumer realty, or consumer credit.

(2) “Merchant” includes a person:

(1) Sale of or offer or attempt to sell merchandise, real property, or intangibles for cash or credit; or

(2) Service or offer for service which relates to any person, building, or equipment.

(1) Building repair or improvement service;

(2) Subprofessional service;

(3) Repair of a motor vehicle, home appliance, or other similar commodity; or

(4) Repair, installation, or other servicing of any plumbing, heating, electrical, or mechanical device.