On Chief Judge Janet DiFiore’s penultimate day in office Tuesday, the New York court officers’ union head made public a letter asking a grievance committee to consider disbarment proceedings against her.

The letter by Dennis Quirk, president of the New York State Court Officers Association, to the New York Grievance Committee for the Ninth Judicial District, cites what Quirk says are a litany of “egregious violations” of state rules of professional conduct.