Claveau v. Plantier

While the defendant denies that he made any oral agreement to supply additional materials to complete the unfinished house which he sold and conveyed to the plaintiff, he relies on the parol evidence rule to exclude such evidence in any event. Wells v. Jackson Iron Mfg. Co., 47 N. H. 235; Folsom v. Great Falls Mfg. Co., 9 N. H. 355. “The justification of the Parol Evidence Rule is that when parties incorporate an agreement in a writing it is a reasonable assumption that everything included in the bargain is set down in the writing. Though this assumption in most cases conforms to the facts,…