New Jersey Statutes Title 12A. Commercial Transactions 12A § 3-311

a. If a person against whom a claim is asserted proves that that person in good faith tendered an instrument to the claimant as full satisfaction of the claim, the amount of the claim was unliquidated or subject to a bona fide dispute, and the claimant obtained payment of the instrument, the following subsections shall apply.

b. Unless subsection c. of this section applies, the claim is discharged if the person against whom the claim is asserted proves that the instrument or an accompanying written communication contained a conspicuous statement to the effect that the instrument was tendered as full satisfaction of the claim.

c. Subject to subsection d. of this section, a claim is not discharged under subsection b. of this section if either of the following applies:

d. A claim is discharged if the person against whom the claim is asserted proves that within a reasonable time before collection of the instrument was initiated, the claimant, or an agent of the claimant having direct responsibility with respect to the disputed obligation, knew that the instrument was tendered in full satisfaction of the claim.