I don’t know about the governor’s authority, other than his ability to remove a Sheriff from office if he is facing a criminal accusation. If he is acquitted, it impresses me as very hard for one elected official to strip another elected official of his office.
The Florida state constitution allows only the governor to remove an elected official if they are charged with official misconduct and make an interim appointment. If the charges are dropped or if the person is found not guilty, they have to petition the governor for reinstatement. Usually the reinstatement takes only a stroke of the governors pen, unless an the prosecutor appeals the not guilty verdict.