
    In the Matter of William V. Grady, Petitioner, v Stephen L. Greller et al., Respondents.
    [932 NYS2d 377]
   “Because of its extraordinary nature, prohibition is available only where there is a clear legal right, and then only when a court — in cases where judicial authority is challenged — acts or threatens to act either without jurisdiction or in excess of its authorized powers” (Matter of Holtzman v Goldman, 71 NY2d 564, 569 [1988]; see Matter of Rush v Mordue, 68 NY2d 348, 352 [1986]). The petitioner failed to demonstrate a clear legal right to the relief sought. Skelos, J.E, Balkin, Leventhal and Lott, JJ., concur.  