New York Consolidated Laws, Civil Practice Law and Rules - CVP Rule 4406. Single post-trial motion

In addition to motions made orally immediately after decision, verdict or discharge of the jury, there shall be only one motion under this article with respect to any decision by a court, or to a verdict on issues triable of right by a jury;  and each party shall raise by the motion or by demand under rule 2215 every ground for post-trial relief then available to him.