N.Y. Comp. Codes R. & Regs. tit. 22 § 1015.12
An attorney employed full-time as determined by the time and leave program of the director of administration who is a law secretary to an Appellate Division Justice or confidential clerk or deputy confidential clerk to a Supreme Court Justice or an employee of the Office of Court Administration or of the Appellate Division shall not participate, directly or indirectly, as attorney or counsel in any action or proceeding pending before any court or any administrative board, agency, committee or commission of any government, or in the preparation or subscription of briefs, papers or documents pertaining thereto. Subject to the approval of a Justice of the Appellate Division in each case, such an attorney may participate as attorney or counsel in noncontested matters in the Surrogate's Court, noncontested accountings in the Supreme Court, or other ex parte applications not preliminary or incidental to litigated or contested matters.
An attorney who is employed part-time, as defined by the time and leave program of the director of administration, as a confidential clerk or deputy confidential clerk to a Supreme Court Justice or law secretary to an Appellate Division Justice shall not appear as attorney or counsel in any action or proceeding pending in the Supreme Court or a County Court, nor shall the attorney indorse papers or documents pertaining thereto. The attorney may engage in any other practice of law which is compatible with and would not reflect adversely upon the performance of the duties of the attorney. No partner or associate of the attorney employed as part-time confidential clerk or deputy confidential clerk or law secretary shall practice law before the Justice by whom the attorney is employed.
N.Y. Comp. Codes R. & Regs. Tit. 22 § 1015.12