Sec. 2.004. LIMITATION ON PURPOSES OF PROFESSIONAL ENTITY. Except as provided in Title 7, a professional entity may engage in only: (1) one type of professional service, unless the entity is expressly authorized to provide more than one type of professional service under state law regulating the professional services; and (2) services ancillary to that type of professional service. Acts 2003, 78th Leg., ch. 182, Sec. 1, eff. Jan. 1, 2006.