Oral agreements and even an extended course of dealing probably will be insufficient under New Jersey law to contradict the language of a written agreement, even if by all outward appearances a partnership existed. An Appellate Division decision finding that no partnership between attorneys who practiced together for 11 years is a warning to make sure that the documents defining a business reflect its actual operations.
Raymond Nadel and Morris Starkman practiced together as Starkman & Nadel, shared profits and held each other and the firm out to the public as partners and even, it seemed, intended to be partnership. Nonetheless, the Appellate Division decision, reversing a trial court decision that there was no partnership in contradiction of a written agreement. See Nadel v. Starkman, 2010 N.J. Super. Unpub. LEXIS 2542 (App.Div. Oct. 20, 2010). (Copy of Slip Opinion Here) The Appellate Division held that, notwithstanding ambiguity in an agreement, a court cannot use extrinsic evidence to vary the unambiguous terms of a contract.
The decision turned on an application of the extrinsic, or parol, evidence rule, which prohibits the introduction of extrinsic evidence to vary the terms of a written agreement. Many trial courts see the rule as more of a suggestion and it sometimes seems that the exceptions to the rule make it meaningless. The biggest exception in my view is that courts will accept evidence to prove that the written agreement was amended by an oral agreement, even if the contract has a provision that it can be amended only writing. Perhaps the lesson here is that appellate courts look at such matters differently, or the plaintiff failed to argue that the original agreement had been amended orally or by the conduct of the parties.