Maryland Code, Alcoholic Beverages and Cannabis § 27-1601

(a)(1) Except as provided in subsection (b) of this section, the Board may not issue a license for an establishment unless the establishment is located at least 500 feet away from:

(2) The distance is to be measured from the nearest point of the building of the establishment to the nearest point of the property line of the elementary or secondary school, public library, or youth center.

(1) the renewal or transfer of a license issued before May 1, 1976; or

(2) the issuance of a Class B (on-sale) hotel and restaurant license of any type.