I signed a contract with an agent to look at one specific home. The property is spelled out in the agreement.The purchase agreement is often a long document so be sure to take the time to read it thoroughly before you sign. The property and improvements which the Seller is agreeing to sell and which the Purchaser is agreeing to purchase is known as. A new construction purchase and sale agreement or sales contract is similar to a resale contract but applies to a newly built home. MODEL: Seller agrees to complete upon the Property as defined below a dwelling known as model. Buyers of new homes in Montgomery County should call the Montgomery County Office of.