An authority of a municipal corporation or Baltimore City may: operate within its territorial boundaries; and without regard to location: administer rent subsidy payments and housing assistance programs for both eligible landlords and tenants; own or manage housing projects in operation before January 1, 1990; and develop, own, or operate a housing project at the request of and within the territorial boundaries of another political subdivision. Anywhere in its county an authority of a county may: administer rent subsidy payments and housing assistance programs for both eligible landlords and tenants; and own or manage housing projects in operation before: January 1, 1990, if the authority is of Baltimore City; or January 1, 1991, if the authority is of another county. Subject to paragraph (3) of this subsection, an authority of a county may conduct its other operations within the county. 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. An authority created under § 12–208 of this title may conduct its operations in the area prescribed under its articles of organization.