Md. Code, Business Occupations and Professions § 17–535

(a) A licensee may not be deemed to be an agent or subagent of or to have a brokerage relationship with a common source information company solely by reason of a licensee’s participation in a common source information company.

(b) A licensee may not be deemed to be an agent or subagent of any client of another broker solely by reason of a licensee’s participation in or use of a common source information company.

(c) A common source information company may not restrict access to its services to any licensee solely based on the size or type of licensee.