(a) It is a ground for removal from office that the public counsel:
(1) does not have at the time of appointment or maintain during service as public counsel the qualifications required by Section 404.052;
(2) violates a prohibition established by Section 404.053, 404.054, 404.056, or 404.057; or
(3) cannot, because of illness or disability, discharge the public counsel's duties for a substantial part of the public counsel's term.
(b) The validity of an action of the public counsel or the office is not affected by the fact that the action is taken when a ground for removal of the public counsel exists.