Md. Code, Business Occupations and Professions § 17–3A–09

(a) A person that holds a reciprocal license shall promptly notify the Commission if the person establishes a principal place of business for the provision of real estate brokerage services in the State.

(b) A person that holds a reciprocal license shall obtain a standard license under the licensing provisions of this title within 90 days after establishing a principal place of business in the State.