San Antonio and Federal Member, Sections on Public Law Labor Litigation Member, U.S. Board of Contract Appeals and U.S. Claims Court Bar Associations State Bar of Texas Member, Sections on Public Law Business Litigation.

San Antonio Bar Association State Bar of Texas.

San Antonio Bar Association State Bar of Texas American Bankruptcy Institute San Antonio Bankruptcy Bar Association.

San Antonio and American Bar Associations State Bar of Texas Member, Grievance Committee The Association of Trial Lawyers of America Texas Trial Lawyers Association.

San Antonio and American Bar Associations San Antonio Trial Lawyers Association San Antonio Young Lawyers Association Texas Trial Lawyers Association.

San Antonio Member, Bar Appellate Practice Section, Vice-Chair, 2002-2003, Secretary, 2001-2002 and Fifth Circuit Bar Associations State Bar of Texas.

San Antonio and American Bar Associations Texas Trial Lawyers Association.