Life Member, American Law Institute.

Member, Board of Directors, International Law Institute.

Fellow, American Bar Foundation.

Member, Presidential Transition Team, Office of the President Elect (Ronald Reagan), The White House (1980-1981).

Member, Advisory Committee on Trade Negotiations (ACTN) (appointed to two consecutive terms by President Ronald Reagan, 1983-1987).

Caucus Manager, Bush (George Herbert Walker Bush) for President, Republican National Convention (1988).

Founder, Member, Board of Directors (1984-1989), Chairman (1986-1988), Sailors & Merchants Bank & Trust Co., Vienna, Virginia.

Board of Visitors, University of Dayton School of Law, 1979-81.

Member, Advisory Board, Houston Journal of International Law, 1977-80. U.S. Correspondent to United Nations (1976).

Listed in Who's Who in the World, Who's Who in America, and Who's Who in American Law.

Recipient of Martindale-Hubbell "AV Preeminent Rating" (highest peer-review and judicial-review rating for both legal ability and ethical standards). Included in America's Most Honored Lawyers (The American Registry 2020 to present), Directory of Best Lawyers in America and Top Litigators, American Lawyer and Corporate Counsel (2017 to present). Listed 2021 DC/Metro Top-Rated Litigators (National Law Journal).