USA

214 Evidence of Prior or Contemporaneous Agreements and Negotiations see also Formation Agreed Obligations Remedies

Agreements and negotiations prior to or contemporaneous with the adoption of a writing are admissible in evidence to establish

• that the writing is or is not an integrated agreement;
• that the integrated agreement, if any, is completely or partially integrated;
• the meaning of the writing, whether or not integrated;
• illegality, fraud, duress, mistake, lack of consideration, or other invalidating cause;
• ground for granting or denying rescission, reformation, specific performance, or other remedy.