(a) To be qualified to serve as a director, a person must be at least 18 years old and:
(1) an owner of property subject to assessment by the district;
(2) an owner of a beneficial interest in a trust that owns property subject to assessment by the district; or
(3) an agent, employee, or tenant nominated by a person covered by Subdivision (1) or (2).
(b) § 375.063, Local Government Code, does not apply to the board.