(a) Except as provided by Subsection (b), a certificate of termination filed in accordance with Chapter 11 must be executed by an officer of the professional corporation on behalf of the corporation.
(b) If a professional corporation does not have any living officer, the certificate of termination must be executed by a director of the corporation. If the professional corporation does not have any living director, the certificate of termination must be executed by the legal representative of the last living director of the corporation.