Topic 4 - Alteration
286 Alteration of Writing
1. If one to whom a duty is owed under a contract alters a writing that is an integrated agreement or that satisfies the Statute of Frauds with respect to that contract, the duty is discharged if the alteration is fraudulent and material.
2. An alteration is material if it would, if effective, vary any party's legal relations with the maker of the alteration or adversely affect that party's legal relations with a third person. The unauthorized insertion in a blank space in a writing is an alteration.
287 Assent to or Forgiveness of Alteration
1. If a party, knowing of an alteration that discharges his duty, manifests assent to the altered terms, his manifestation is equivalent to an acceptance of an offer to substitute those terms.
2. If a party, knowing of an alteration that discharges his duty, asserts a right under the original contract or otherwise manifests a willingness to remain subject to the original contract or to forgive the alteration, the original contract is revived.