NEW YORK IS A “PERMISSIVE COUNTERCLAIM” JURISDICTION; HERE COUNTERCLAIMS SHOULD NOT HAVE BEEN DISMISSED BECAUSE THEY COULD HAVE BEEN RAISED IN A PRIOR PROCEEDING (SECOND DEPT).

The Second Department, reversing (modifying) Supreme Court, determined counterclaims in the current proceeding should not have been dismissed because they could have been raised in a prior proceeding: New York is a “permissive counterclaim” state:

New York is a permissive counterclaim jurisdiction under CPLR 3011 and 3019, where, generally, a defendant has no obligation to assert counterclaims and can wait to assert them in separate litigation … . However, while “[o]ur permissive counterclaim rule may save from the bar of res judicata those claims for separate or different relief that could have been but were not interposed in the parties’ prior action,” the rule “does not . . . permit a party to remain silent in the first action and then bring a second one on the basis of a preexisting claim for relief that would impair the rights or interests established in the first action” … .

Here, [the party’s] failure to assert the remaining causes of action as counterclaims in the prior action did not preclude him from asserting them in this action because, if [he] were successful on those causes of action, this would not impair the rights that were or could be established in the prior action with respect to him … . Berry v Batash, 2026 NY Slip Op 01755, Second Dept 3-25-26

Practice Point: Consult this decision for insight into when counterclaims which could have been raised in a prior proceedings should or should not be dismissed.