Md. Code, Housing and Community Development § 12–105

(a) An authority of a municipal corporation or Baltimore City may:

(1) operate within its territorial boundaries; and

(2) without regard to location:

(i) administer rent subsidy payments and housing assistance programs for both eligible landlords and tenants;

(ii) own or manage housing projects in operation before January 1, 1990; and

(iii) develop, own, or operate a housing project at the request of and within the territorial boundaries of another political subdivision.

(b) (1) Anywhere in its county an authority of a county may:

(i) administer rent subsidy payments and housing assistance programs for both eligible landlords and tenants; and

(ii) own or manage housing projects in operation before:

1. January 1, 1990, if the authority is of Baltimore City; or

2. January 1, 1991, if the authority is of another county.

(2) Subject to paragraph (3) of this subsection, an authority of a county may conduct its other operations within the county.

(3) An authority of a county other than Baltimore City may not conduct its other operations within a municipal corporation unless the governing body of the municipal corporation consents by resolution to its inclusion in the authority’s area of operation.

(c) An authority created under § 12–208 of this title may conduct its operations in the area prescribed under its articles of organization.