(a) The commissioner shall make a determination, prior to sale of unappropriated State land, whether a commission shall be made available to real estate brokers and, if so, to what extent, where such commission is deemed to be necessary to stimulate interest in a particular sale. In no event shall the rate of commission exceed six percent of the purchase price of the realty being offered for sale.

(b) In any such sale where a broker commission is offered, notice as to the offer and extent of said commission shall be included in the publication of any notice of sale pertaining to the realty being offered for sale.

(c) A broker commission shall be paid only to a broker who qualifies under and complies with the standards and requirements of section 276.3 of this Part. Said commission, if payable, shall not be paid prior to transfer of title from the State to the purchaser. In the event such transfer of title does not occur for any reason, no broker commission shall be paid.