N.Y. Civil Practice Law & Rules § 1008: Answer of third-party defendant; defenses

§ 1008. Answer of third-party defendant; defenses. The third-party

defendant shall answer the claim asserted against him or her by serving

copies of his or her answer upon the third-party plaintiff. The

third-party defendant may assert against the plaintiff in his or her

answer any defenses which the third-party plaintiff has to the

plaintiff's claim except an objection or defense that the summons and

complaint, summons with notice or notice of petition and petition was

not properly served, or that jurisdiction was not obtained over the

third-party plaintiff. The third-party defendant shall have the rights

of a party adverse to the other parties in the action, including the

right to counter-claim, cross-claim and appeal.