Denver and Colorado Bar Associations.

Denver, Colorado Member, Ethics Committee, 1991— and American Bar Associations.

Colorado and American Bar Associations State Bar of Michigan

Denver, Colorado and American Member, Forum Committee on Construction Industry Bar Associations.

Denver and Colorado Bar Associations.

Denver Member, Judicial Administration Committee, 1981-1988, Colorado Member, Convention Committee, 1980-1988 and American Member Litigation Section Leader, Litigation Section Study of Federal Rules of Evidence-Article II, 1972-1992 Trial Evidence

Denver and Colorado Bar Associations.

Denver, Colorado Member, Colorado Real Estate Council, 1984-1987 and American Council Member, 1990-1995 Co-Chair, Membership Committee 1993-1995, Secretary, 1995-1996, Vice-Chair, 1996-1998, Chair-Elect, 1998-1999 Chair, 1999-2000, Section of Real Pr

Denver, Colorado Member, Sections on Tax Probate and Trust Law and American Member, Section of Taxation and Business Law Bar Associations.