Maryland Code, Alcoholic Beverages and Cannabis § 22-1004.2

(c)(1) A license authorizes the license holder to sell beer, wine, and liquor from a store in the hotel lobby to patrons of the hotel for on-premises consumption.

(2) Beer may be sold only in a can or bottle that does not exceed 12 ounces.

(3) Wine may be sold only in a bottle that does not exceed 750 milliliters.

(4) Liquor may be sold only in a bottle that does not exceed 50 milliliters.

(1) on Monday through Saturday, from noon to 10 p.m.; and

(2) on Sunday, from 11 a.m. to 10 p.m.

(1) through a vending machine; or

(2) by stocking beer, wine, and liquor in a guest room for purchase.