Of counsel in the Litigation Department, retired partner Sidney S. Rosdeitcher concentrated in antitrust but also had experience in a variety of other fields of commercial litigation. Mr. Rosdeitcher had an extensive appellate practice that included two important arguments in the United States Supreme Court.

Since his retirement, Mr. Rosdeitcher has devoted himself exclusively to a pro bono practice as Senior Policy Advisor to the Brennan Center for Justice at New York University School of Law, and on behalf of the Association of the Bar of the City of New York and other groups, on issues that include access to justice, voting rights and civil liberties.

Mr. Rosdeitcher has engaged in substantial pro bono work. Among other things, Mr. Rosdeitcher won an important asylum case in the Third Circuit in which the court of appeals overturned a denial of asylum, finding that the refugee’s due process rights were violated. Mr. Rosdeitcher also represented the City of Santa Fe in successfully defending at trial, and on appeal, its living wage ordinance, raising the hourly minimum wage for Santa Fe workers to its current level of $9.50.

Recognized for his "extraordinary commitment to helping refugees secure asylum," Mr. Rosdeitcher received the Marvin E. Frankel Pro Bono Award from Human Rights First. He also received the Segal-Tweed Founders Award and the Whitney North Seymour Award from the Lawyers’ Committee for Civil Rights Under Law for his work in civil rights.

Mr. Rosdeitcher was chairman, and is currently a member, of the Task Force on National Security and the Rule of Law of The Association of the Bar of the City of New York. He also served as a member of the Association's Executive Committee and as chairman of the Association's Council on International Affairs, and chairman of the Association's Committees on Civil Rights, International Human Rights and Professional and Judicial Ethics. Mr. Rosdeitcher is a director of the Lawyers’ Committee for Civil Rights Under Law and a member of its Amicus Committee. He also is a member of the Amicus Committee of the Individual Rights and Responsibilities section of the American Bar Association. He currently teaches an undergraduate seminar in constitutional law at Columbia. He also taught courses in civil liberties at Brooklyn Law School and ethics at Columbia Law School. He published articles on antitrust and transnational discovery and is co-author of reports on human rights conditions in Uganda and on the impact of the Military Commissions Act on U.S. obligations under the Geneva Conventions, and is the author of an article on Supreme Court Adjudication and the Qualifications of Supreme Court Nominees.

From 1961-62, Mr. Rosdeitcher served as a lawyer in the Office of Legal Counsel at the United States Department of Justice and he took a leave of absence from the firm to serve as an assistant to Commissioner Philip Elman of the Federal Trade Commission from 1965 to 1966.

Mr. Rosdeitcher served as an articles editor of the Harvard Law Review and is currently a member of the Harvard Law Review’s Board of Overseers.