N.Y. Gen. Ass'ns Law § 11
Where an action, authorized by a law of the state, is brought against one or more persons, as stockholders of a joint-stock association, an objection to any of the proceedings cannot be taken, by a person properly made a defendant in the action, on the ground that the plaintiff has joined with him, as a defendant in the action, a person, whose name appears on the stock-books of the association, as a stockholder thereof, by the name so appearing; but who is misnamed, or dead, or is not liable for any cause. In such a case, the court may, at any time before final judgment, upon motion of either party, amend the pleadings and other papers, without prejudice to the previous proceedings, by substituting the true name of the person intended, or by striking out the name of the person who is dead, or not liable, and, in a proper case, inserting the name of his representative or successor.
N.Y. Gen. Ass'ns Law § 11