Florida HOAs are governed by FS718.3027 Conflict interest criteria. "Litmus" test comprise (are not necessarily limited to):
(a) A director or an officer, or a relative of a director or an officer, enters into a contract for goods or services with the association.
(b) A director or an officer, or a relative of a director or an officer, holds an interest in a corporation, limited liability corporation, partnership, limited liability partnership, or other business entity that conducts business with the association or proposes to enter into a contract or other transaction with the association.
That being said, when a board is deciding on an action involving a violation and 2 directors, that does not quite fit in the "litmus test" described above: there are violations regarding the bylaws and possibly other statues, what is the basis in law that allows, if not forces, the board to bar said directors' vote?