(

a) Any printed or form agreement that initially establishes, or is intended to establish, or alters the terms of any agreement that previously established a right to compensation to be paid to a real estate licensee for the sale of residential real property containing not more than four residential units, or for the sale of a mobilehome, shall contain the following statement in not less than 10-point boldface type immediately preceding any provision of such agreement relating to compensation of the licensee: Notice: The amount or rate of real estate commissions is not fixed by law. They are set by each broker individually and may be negotiable between the seller and broker. (

b) Any printed or form agreement that initially establishes or is intended to establish, or alters the terms of any agreement that previously established a right to compensation to be paid to a real estate licensee for the purchase of residential real property containing not more than four residential units, or for the purchase of a mobilehome, shall contain the following statement in not less than 10-point boldface type immediately preceding any provision of such agreement relating to compensation of the licensee: Notice: The amount or rate of real estate compensation is not fixed by law. They are set by each broker individually and may be negotiable between the buyer and broker. (

c) The amount or rate of compensation shall not be printed in any such agreement described in subdivisions (

a) and (b). (

d) Nothing in this

section shall affect the validity of a transfer of title to real property. (

e) As used in this section, “alters the terms of any agreement which previously established a right to compensation” means an increase in the rate of compensation, or the amount of compensation if initially established as a flat fee, from the agreement which previously established a right to compensation.