LABAN
Member
Chairman, Ad Hoc Committee

Partido Demokratiko
National President Pilipino-Laban (PDP-Laban)
Member, National Executive Committee
Chairman, Makati Chapter
Chairman, Metro Manila Council
Chairman, Ad Hoc Committee
Makati Campaign Manager, 1986 Presidential Snap Elections

Movement of Attorneys for Brotherhood, Integrity and Nationalism, Inc. (MABINI)
Founding Member
Vice-Chairman, 1985

August Twenty One Movement (ATOM)
Legal Counsel

Free Legal Assistance Group (FLAG)
Chairman, Manila Chapter

Boy Scouts of the Philippines
National President, February 6, 1998 to present
National President, 1994-1996 (two consecutive terms)

Asia Pacific Regional Scout Committee, The World Organization of the Scout Movement
Member (1998); Chairman (2007-2012)

United Opposition (UNO)
President