Denver, First Judicial and Colorado Bar Associations Defense Research Institute Colorado Defense Lawyers Association Trial Attorneys of America.

Arapahoe County Member, Board of Directors, Denver, Colorado and American Bar Associations Colorado Defense Lawyers Association Defense Research Institute.

Denver and Colorado Bar Associations.

Denver, Colorado and American Governor, 1998-1999 Lt. Governor, 1998, Board of Governors Public Interest Committee, Law Student Division, 15th Circuit Bar Associations.

Denver Vice President, 1990, Colorado Member, Board of Governors, 1990-1991 and American Chairman, Issues Affecting the Legal Profession, 1983-1984 Young Lawyers Section Liaison to Standing Committee on Professional Discipline, 1984-1986 Bar Associ

Denver, Colorado Member, Patent, Trademark and Copyright Section and American Member, Litigation Section Bar Associations International Trademark Association American Civil Liberties Union.

Denver, Colorado and American Bar Associations.

Denver, Colorado and American Bar Associations Defense Research Institute.