US real estate transactions involve a lot of potential problems that are unfamiliar to ordinary buyers and sellers, as well as the laws of the state where the property is located. The preparation and negotiation process of the sales contract is a confrontational negotiation process. Experienced lawyers know what are reasonable, legal, and what industry habit or standard is. Usually, a real estate sales contract that is fair to both buyers and sellers is the result of negotiations between their respective lawyers of two parties.