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Born in Hamburg, Germany, the Hon. Ernst Rosenberger focuses on domestic and international litigation, as well as arbitration, alternative and international dispute resolution and mediation.

Prior to joining Stroock in March 2004, Justice Rosenberger served as an Associate Justice of the New York Supreme Court Appellate Division, First Department, since 1985. He sat on over 15,000 criminal and civil appeals from the highest trial courts of New York. Prior to the Appellate Division, Justice Rosenberger served as Justice of the New York Supreme Court (1977-1985). During this period, he was the Presiding Justice of the Court’s Extraordinary Special and Trial Term for investigation of corruption in the criminal justice system. Justice Rosenberger also served as an Acting Justice of the New York Supreme Court (1973-1976) and a Judge in the Criminal Court of the City of New York (1972 –1976).

Justice Rosenberger’s distinguished career in the law is also marked by concern for the rights of the disenfranchised. He volunteered his services in the defense of the “Freedom Riders” arrested in 1961 in Jackson, Mississippi, and he worked on public accommodation and voting rights cases throughout the South in the 1960s. His international experience includes being one of two U.S. judges to examine West Germany’s legal system during an official visit to the country in the 1970s. Justice Rosenberger, who has served on the New York Law School faculty since 1976, has been named by New York Magazine and the Village Voice as being one of New York’s best judges.

Honors & Awards

Justice Rosenberger was awarded the President’s Medal of Honor by New York Law School. Justice Rosenberger has also been listed as a New York Super Lawyer for 2012-2017.


  • Member, Association of Justices of the Supreme Court of the State of New York
    • Chairman, Committee on Reform of the Law
  • Co-Chairman, Trial Practice Course, New York County Lawyers’ Association
  • Member, Association of the Bar of the City of New York
  • Member, New York State Bar Association
  • Member, American Bar Association
  • Founding Director, New York Offender Aid and Restoration
  • Founding President, Denis McInerney NYCLA American Inn of Court
  • Vice Chair, Board of Trustees, New York Law School

Selected Activities

Justice Rosenberger served as a Corporal in the United States Army’s 101st Airborne Division from 1949-1951.

Speeches & Events

Justice Rosenberger is a frequent lecturer at colleges, university law schools and bar associations.

Admitted To Practice

New York

U.S. District Court, Southern District of New York; U.S. District Court, Eastern District of New York; U.S. Customs Court; U.S. Court of Appeals, Second Circuit; U.S. Supreme Court; Hamburg, Germany


LL.M., University of Virginia School of Law, 1996

J.D., New York Law School, 1958; Editor-in-Chief, New York Law School Law Review

B.A., City College of the City University of New York, 1955