Maryland Code, Housing and Community Development § 16-109

(1) after financing is provided by the Montgomery Commission, 50% or more of the housing units are occupied first by persons of eligible income;

(2) 20% or more of the housing units are for low-income persons who are assisted or who are eligible to be assisted with federal subsidies; or

(3) the owners of the housing certify to the Montgomery Commission that they will make their best efforts to meet the standard under item (1) or (2) of this section.