(a) The commission may adopt rules in the public's best interest that require license holders to use contract forms prepared by the Texas Real Estate Broker-Lawyer Committee and adopted by the commission.
(b) The commission may not prohibit a license holder from using for the sale, exchange, option, or lease of an interest in real property a contract form that is:
(1) prepared by the property owner; or
(2) prepared by an attorney and required by the property owner.
(c) A listing contract form adopted by the commission that relates to the contractual obligations between a seller of real estate and a license holder acting as an agent for the seller must include:
(1) a provision informing the parties to the contract that real estate commissions are negotiable; and
(2) a provision explaining the availability of Texas coastal natural hazards information important to coastal residents, if that information is appropriate.