Illinois Full Satisfaction and Waiver of Lien by Real Estate Broker — Agent is a document used to release a lien on a property in Illinois. It is typically used by a real estate broker or agent to certify that all obligations owed to the broker or agent in relation to the sale or transfer of a property have been fulfilled. The document serves as a waiver of the broker's or agent's right to pursue a claim against a buyer or seller in relation to the sale or transfer of the property. There are two types of Illinois Full Satisfaction and Waiver of Lien by Real Estate Broker — Agent: the Joint Full Satisfaction and Waiver of Lien, and the Unilateral Full Satisfaction and Waiver of Lien. The Joint Full Satisfaction and Waiver of Lien is signed by both the buyer and seller, and both parties agree to waive their rights to pursue a claim against each other in relation to the sale or transfer of the property. The Unilateral Full Satisfaction and Waiver of Lien is signed by only one party, typically the real estate broker or agent, and is used to waive any claims against the buyer or seller of the property.