N.Y. Jud. Law § 473

§ 473. Constables, coroners, criers and attendants prohibited from\npracticing during term of office. A constable, coroner, crier, or\nattendant of a court, shall not, during his continuance in office,\npractice as an attorney or counsellor in any court, nor shall a sheriff,\nunder-sheriff, deputy-sheriff, or sheriff's clerk so practice in the\ncounty in which he is elected or appointed.\n