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N.Y. C.P.L.R. 1009
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Rule 1009 Claim by plaintiff against third-party defendant

Article 10: Parties Generally

Rule Text

Rule 1009. Claim by plaintiff against third-party defendant. Within twenty days after service of the answer to the third-party complaint upon plaintiff's attorney, the plaintiff may amend his complaint without leave of court to assert against the third-party defendant any claim plaintiff has against the third-party defendant.