Md. Code, Alcoholic Beverages and Cannabis § 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.