O.C.G.A. § 8-3-13 (2019)

(a) Any two or more authorities may join or cooperate with one another in the exercise, either jointly or otherwise, of any or all of their powers for the purpose of financing (including the issuance of bonds, notes, or other obligations and giving security therefor), planning, undertaking, owning, constructing, operating, or contracting with respect to a housing project or projects located within the area of operation of any one or more of said authorities. For such purpose, an authority may by resolution prescribe and authorize any other housing authority or authorities, so joining or cooperating with it, to act on its behalf with respect to any or all powers. For purposes of this Code section the term “authorities” shall include an urban residential finance authority created pursuant to the provisions of Chapter 41 of Title 36.

(b) Any authorities joining or cooperating with one another may by resolution appoint from among the commissioners of such authorities an executive committee with full power to act on behalf of such authorities with respect to any or all of their powers, as prescribed by resolutions of such authorities.