Tulsa County, Oklahoma and American Bar Associations.

Hawaii State Member, Section on Real Property and Financial Services and American Member, Section on Real Property, Probate and Trust Bar Associations American Land Title Association Hawaii Developers Council.

Illinois State Bar Association State Bar of Wisconsin.

Pennsylvania Bar Association Water Environment Federation Institute of Professional Environmental Practice.

Yellowstone County Bar Association State Bar of Montana Defense Research Institute Montana Defense Trial Lawyers Member, Board of Directors, 2000—.

Tulsa County and Oklahoma Bar Associations.

Atlanta, Bartow County, New York State and American Bar Associations State Bar of Georgia Chairman, Aviation Section, 1986-1988 Lawyer-Pilots Bar Association Lawyers Club of Atlanta National Transportation Safety Board Bar Association.

Washington State Bar Association.

Dane County and American Bar Associations State Bar of Wisconsin.

New York County, New York State, Westchester County and American Bar Associations New York County Lawyers Association Co-Chairman, Presidents Business Advisory Counsel.