Florida constitution
Article VIII: "local government"
Section 1

(k) COUNTY SEAT. In every county there shall be a county seat at which shall be located the principal offices and permanent records of all county officers. The county seat may not be moved except as provided by general law. Branch offices for the conduct of county business may be established elsewhere in the county by resolution of the governing body of the county in the manner prescribed by law. No instrument shall be deemed recorded until filed at the county seat, or a branch office designated by the governing body of the county for the recording of instruments, according to law.