What is the purpose of the Parol Evidence Rule?

What is the purpose of the Parol Evidence Rule?

• A. To enforce oral agreements over written ones.
• B. To keep out evidence of prior or contemporaneous agreements that contradict a later writing.
• C. To allow oral negotiations to modify a written contract.
• D. To require that all modifications be in writing.

Answer: (B)

When a written contract is intended to be the final and complete expression of the agreement, the Parol Evidence Rule is meant to keep out evidence of prior or contemporaneous promises that would alter or contradict those written terms. This preserves the certainty and integrity of the written instrument, so the written words control what the parties actually agreed to, and later oral or prior statements can’t rewrite the deal. In practice, that means if there’s a fully integrated writing, you generally cannot introduce earlier negotiations or side oral promises to change, add, or contradict what’s in the writing. The goal is to prevent disputes over what was said outside the document from defeating the written terms. There are important exceptions—for example, evidence may be admitted to interpret vague or ambiguous language, to prove that the contract is not fully integrated, or to establish issues like fraud, duress, or misrepresentation that would affect validity. But overall, the principle is that the written contract controls, and outside statements cannot override it unless an exception applies.

When a written contract is intended to be the final and complete expression of the agreement, the Parol Evidence Rule is meant to keep out evidence of prior or contemporaneous promises that would alter or contradict those written terms. This preserves the certainty and integrity of the written instrument, so the written words control what the parties actually agreed to, and later oral or prior statements can’t rewrite the deal.

In practice, that means if there’s a fully integrated writing, you generally cannot introduce earlier negotiations or side oral promises to change, add, or contradict what’s in the writing. The goal is to prevent disputes over what was said outside the document from defeating the written terms. There are important exceptions—for example, evidence may be admitted to interpret vague or ambiguous language, to prove that the contract is not fully integrated, or to establish issues like fraud, duress, or misrepresentation that would affect validity. But overall, the principle is that the written contract controls, and outside statements cannot override it unless an exception applies.