N.J. Stat. § 2A:34-12: Counterclaims.

Counterclaims.

Whenever the court shall have acquired jurisdiction of any action under the provisions of this chapter or P.L.2006, c.103 (C.37:1-28 et al.), the defendant therein may, by counterclaim, state any cause of action under this chapter or P.L.2006, c.103 (C.37:1-28 et al.) which exists at the time of the service of the counterclaim.

Amended 2006, c.103, s.72.