Com to register for classes! "Agreement" is defined in the introductory paragraph hereof.A contract is whatever the two parties agree to it. There is no such thing as standard contract in the sense that you have to use this. The property and improvements which the Seller is agreeing to sell and which the Purchaser is agreeing to purchase is known as. Unit 8.2--Contract Formation, Offer and Acceptance. Listing Agreements Exclusive Right to Sell Exclusive Agency Open Listing Net Listing Buyer Agency Agreements.