Production Credit Ass'n of Green Bay v. Rosner

The parol evidence rule is applicable to bar prior written or oral agreements varying or contradicting a subsequent written agreement if the subsequent written agreement is intended by the parties to be the final expression of the agreement. (For a complete statement of the rule see note 1 of the majority opinion.) Thus when a party invokes the parol evidence rule the first step the trial court must take is to determine whether the parties intended the written agreement to be a final, total or partial, integrated agreement, or whether they intended any prior agreements to be part of their…