Only consider parol evidence when you consider it.

In Bluebonnet Hotel Ventures, LLC v. Wells Fargo Bank, N.A., the Fifth Circuit considered whether there had been an “[e]rror that vitiates consent” because of a “failure of cause” about an interest rate swap agreement, so as to allow its cancellation under Louisiana contract law.  No. 13-30827 (June 6, 2014).  In the course of affirming summary judgment for the bank, the Court declined to consider emails written around the time of contracting, noting: “Under Louisiana law, courts may only consider parol evidence when a contract is ambiguous.” To illustrate the sharp edge that separates holdings in the area of extrinsic evidence, cf. Fruge v. Amerisure, 663 F.3d 743 (5th Cir. 2011) ( applying Louisiana law and holding: “Parol evidence is admissible to show mutual error even though the express terms of the policy are not ambiguous.”) (citations omitted).