State Bar of Texas.

Chicago, Illinois State and American Bar Associations Chicago Council of Lawyers Appellate Lawyers Association.

New York State Bar Association The Florida Bar The Association of Trial Lawyers of America New York State Trial Lawyers Association.

New York State and American Bar Associations Bar Association of the District of Columbia.

Maricopa County Bar Association State Bar of Arizona Health Care Financial Management Association National Health Lawyers Association.

San Antonio Bar Association State Bar of Texas Defense Counsel of San Antonio.

Broward County Chair, Law Day Committee, 1996 Chair, Medical/Legal Liaison Committee, 1997 Professional Responsibility Committee, 2000 and American Bar Associations The Florida Bar St. Thomas More Society of South Florida Defense Research Institute

Houston and American Member, Natural Resources Section Bar Associations State Bar of Texas Association of International Petroleum Negotiators.

North Carolina Bar Association North Carolina Academy of Trial Lawyers.

Chicago, Illinois State and American Bar Associations.