Ala. Code § 24-1-111

In addition to its other powers, any housing authority may exercise any or all of its powers within the territorial boundaries of any municipality not included in the area of operation of such housing authority, for the purpose of planning, undertaking, financing, constructing, and operating a housing project or projects within such municipality; provided, that a resolution shall have been adopted by the governing body of such municipality in which the authority is to exercise its powers and by any housing authority previously established by such municipality and authorized to exercise its powers therein declaring that there is a need for the aforesaid housing authority to exercise its powers within such municipality.