N.D. Cent. Code § 9-03-14 : — CONTRACTS AND OBLIGATIONS03 - CONSENT —03-14 - Mistake of law defined TEXT PDF Mistake of law constitutes a mistake within the meaning of this title only when it arises from: 1. A misapprehension of the law by all parties, all supposing that they knew and understood it and all making substantially the same mistake as to the law; or 2. A misapprehension of the law by one party of which the others are aware at the time of contracting, but which they do not rectify. N.D.C.C. § 9-03-14