Every real property securities dealer shall file with the commission, ten days prior to use, true copies of all material which pertains to activities subject to sections 20-329o to 20-329bb, inclusive. The commission shall approve or disapprove such material within ten days of receiving such material. If the commission fails to give notice to the real property securities dealer of its disapproval of any such material within ten days of receiving such material, the commission shall be deemed to have approved such material. No real property securities dealer shall use any such material in any way after the commission gives notice in writing that such material contains any statement that is false or misleading or omits to state material information that is necessary to make any statement in such material complete and accurate.