(a) It is a ground for removal from office that the commissioner:
(1) does not have at the time of appointment the qualifications required by Section 402.00118;
(2) does not maintain during service as commissioner the qualifications required by Section 402.00118;
(3) violates a prohibition established by Section 402.00122, 402.00124, 402.00125, or 402.00126; or
(4) cannot because of illness or incapacity discharge the commissioner's duties for a substantial part of the commissioner's term.
(b) The validity of an action of the commissioner or the division is not affected by the fact that it is taken when a ground for removal of the commissioner exists.