Md. Code, Alcoholic Beverages and Cannabis § 31-1402
§31–1402.
With the license application, the applicant shall submit a petition of support that:
(1) is signed by at least three residents who are owners of real property and registered voters in the county; and
(2) declares that the applicant:
(i) is personally known to them; and
(ii) is a resident of the county at the time the applicant presents them with the application.