(a) Within 30 days after the date a board member is appointed, the member must qualify by taking the official oath and by filing a good and sufficient bond with the county clerk.
(b) The bond must be:
(1) payable to the order of the commissioners court;
(2) payable in an amount prescribed by the commissioners court of $5,000 or more; and
(3) conditioned that the board member will faithfully perform the duties of a board member, including the proper handling of all money that comes into the board member's hands in the board member's official capacity.