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On Parol: The Construction And Interpretation Of Written Agreements And The Role Of Extrinsic Evidence In Contract Litigation, Keith A. Rowley

Scholarly Works

As a general rule, extrinsic evidence, whether written or oral, is not admissible to prove either the intent of the parties to a contract or the meaning of contractual terms when the parties have executed an unambiguous, fully-integrated (i.e., final and all-inclusive) written agreement. The trial court may consider various types of extrinsic evidence, however, in determining whether a particular agreement is fully integrated or ambiguous, and even in choosing among rival interpretations of an agreement where ambiguity is not present. If the trial court determines that an agreement is not fully integrated, then the trier of fact may consider …