Four Corners (disambiguation)
Four Corners is a region in the southwestern United States where the corners of Colorado, Utah, New Mexico and Arizona meet.
Parol evidence rule
In a minority of U.S. states, (Florida, Colorado, and Wisconsin), the parol evidence rule is extremely strong and extrinsic evidence is always barred from being used to interpret a contract. This is called the Four Corners Rule, and it is traditional/old. In a Four Corners Rule jurisdiction, there are two basic rules. First, the court will never allow parol evidence if the parties intended a full and completely integrated agreement, and second, the court will only turn to parol evidence if the terms available are wholly ambiguous. The policy is to prevent lying, to protect against doubtful veracity, to enable parties to rely dearly on written contracts, and for judicial efficiency.