Form 148: Cooperating Broker Compensation Agreement. This guide will help you to understand the changes and the proper way to fill out the forms.The resources here provide the facts and latest updates on NAR's settlement agreement related to broker commissions. NOTICE: This is a legal and binding Agreement for the purchase and sale of property. It is appropriate for most BUT. Find out more about our database of CAR real estate forms here. We can provide you with samples of court forms that are available. We can provide you with guidance on how to fill out forms.