Sec. 7. The department may revoke the certification of a tax representative for the following:
(1) Violation of any rule applicable to certification or practice before the department, the Indiana board, or the property tax assessment board of appeals.
(2) Gross incompetence in the performance of practicing before the property tax assessment board of appeals, the department, or the Indiana board.
(3) Dishonesty, fraud, or material deception committed while practicing before the property tax assessment board of appeals, the department, or the Indiana board.
(4) Dishonesty, fraud, material deception, or breach of fiduciary duty committed against the tax representative's employer or business associates.
(5) Violation of the standards of ethics or rules of solicitation adopted by the department.