Maricopa County and American Member, Section of Litigation, Committee on Corporate Counsel Bar Associations State Bar of Arizona Chairman, Trial Practice Section, 1990-1991 State Bar of California.

Maricopa County and American Bar Associations State Bar of Arizona Member, Criminal Rules Committee, 1995-2001 Executive Council of Securities Section, 1998—.

Maricopa County and American Bar Associations State Bar of Arizona.

Maricopa County, Iowa State and American Member, Trial Practice, Business Law Section Bar Associations State Bar of Arizona Founder, Corporate and Business Litigation Subsection Defense Research Institute Arizona Association of Defense Counsel.

Maricopa County and American Member Ethics and Professionalism Committee and Trial Practice Section Bar Associations State Bar of Arizona.

Maricopa County Bar Association State Bar of Arizona Member Real Property and Appellate Past Chair, Executive Council Sections Past Chairman, Editorial Board, Arizona Attorney Magazine Anti-Defamation League Past Chairman, Arizona Regional Board

State Bar of Texas State Bar of Arizona.

State Bar of Arizona.