If there occurs within any 4-year period the final disapproval of all or any part of a county roll pursuant to s. 193.1142 for 2 separate years, the Governor shall appoint a three-member performance review panel. Such panel shall investigate the circumstances surrounding the disapprovals and the general performance of the property appraiser. If the panel finds unsatisfactory performance, the property appraiser shall be ineligible for the designation and special qualification salary provided in s. 145.10(2). Within not less than 12 months, the property appraiser may requalify therefor, provided he or she successfully recompletes the courses and examinations applicable to new candidates.