Each written agreement which fixes the compensation to be paid to a real estate broker for the sale, lease or purchase of real property shall contain the following statement in not less than ten point boldface type or in a manner which otherwise stands out significantly from the text immediately preceding any provision of such agreement relating to compensation of the broker:
“NOTICE: THE AMOUNT OR RATE OF REAL ESTATE BROKER COMPENSATION IS NOT FIXED BY LAW. IT IS SET BY EACH BROKER INDIVIDUALLY AND MAY BE NEGOTIABLE BETWEEN YOU AND THE BROKER.”