About: William L. Nagle, Special Master / Mediator

William L. Nagle, Special Master/Mediator is in Burlingame near the San Francisco Airport

William L. Nagle, Esq.
Special Master/Mediator


Stanford University. B.A. History, 1971

University of San Francisco School of Law. J.D., 1974 Law Review


1994 - Present Special Master by appointment of Superior Courts of the State of California and Mediator:
San Mateo, Santa Clara, San Francisco, Marin, Sonoma, Solano, Alameda, Contra Costa, Santa Cruz, Monterey, Sacramento, Humboldt, Kings, Madera, Orange, Placer, Riverside, San Diego, San Luis Obispo, Santa Barbara, Shasta, San Benito, San Joaquin, Kern, Merced, Napa, Fresno, Tulare, Los Angeles, San Bernardino, Stanislaus, Yolo, and U.S. District Court for the Ninth District, Northern and Central Districts. These appointments have involved the arbitration, mediation or resolution of over 1,500 cases.

1984 - 1996 Nagle, Krug & Winters
Burlingame, California

Insurance Defense Trial lawyer, including construction and complex litigation, personal injury, public entities, aviation, professional liability, environmental law, and insurance coverage. AV – Martindale-Hubbell.

1993 President
San Mateo County Bar Association

1987 - 1995 Board Member
San Mateo County Bar Association

1978 - Present Judge Pro Tempore & Arbitrator
San Mateo County,
Santa Clara County, Sacramento County, Alameda County, Contra Costa Count and Marin County Superior Courts

1974 - 1984
Nagle, Vale, McDowell & Cotter, San Mateo, California


  • Numerous presentations on trial law, construction litigation and Alternative Dispute Resolution to Bar Associations, Insurance Claims Departments, City Attorney Groups and Judges Groups
  • March, 2003, Featured Speaker, Lorman Educational Services – Construction Defect Seminar – Mold Cases
  • March, 2003, Featured Speaker, Lorman Educational Services – Construction Defect Seminar – CD Cases
  • March, 2002, Featured Speaker, Associated Business Trial Lawyers – Complex Litigation
  • March, 2002, Lecturer – Q&A – ECHO, San Mateo – CD Cases
  • September, 2001, Featured Speaker, National Business Institute, Settlement, Special Masters, Fresno, California
  • April, 2001, Lecturer, Boalt Law School, University of California, Special Masters, Berkeley, California
  • January, 2001, Featured Speaker, Fresno Defense Bar, Special Masters, Fresno, California
  • January, 2000 Featured Speaker, Bar Association of San Francisco, Special Masters, San Francisco, California
  • February, 1998 Lecturer, Hastings School of Law, ADR Special Masters, San Francisco, California
  • December, 1996 Featured Speaker, San Mateo County Bar Association, San Mateo Special Master Program, San Mateo, California
  • January, 1996 Featured Speaker CLS International - UST Conference, ADR Process and Special Masters, Sacramento, California
  • December, 1995 Construction Defect Focus Group, Scottsdale Insurance Company, San Jose, California
  • September, 1995 Featured Speaker, San Mateo County Bar Association, How To Appear and Succeed Before A Special Master, San Mateo, California
  • December, 1994 Featured Panelist on Environmental Coverage, Association of Defense Counsel (ADC), San Francisco, California
  • November, 1994 Featured Speaker Environmental issues, Center For Judicial Education and Research (CJER), Northern California Superior Court Judges, Berkeley, California
  • November, 1994 California Regional Water Quality Control Board, Region II, Oakland, California
  • October, 1994 Featured Speaker, California State Water Convention, Ontario, California
  • Chair, 1993, Northern Bar Leaders Conference for State of California, ADR Roundtable, Member, Judge's Conference, and Ad Hoc Member State Bar Taskforce on ADR
  • Co-author San Mateo County Local Rules regarding Special Master and Case Management
  • Member, San Mateo County ADR Oversight Committee 1994 - 1997
  • Recipient William Nagle, Jr. Award, 1994 (in recognition of professionalism)
  • Presentation by San Mateo County Superior Court Bench Award as "Citizen Judge," 1994

1976 - 1978 Trustee, Peninsula Library System

1979 Delegate, Governor's Conference on Libraries

1979 Delegate, President Conference on Libraries

1979 - 1986 President of Board of Trustees, Burlingame Library

1987 - 1988 Chairman, Woodside Study Committee re Joint School and Public Library

1986 - 1993 Trustee, Woodside School Foundation

1989 - 1990 Co-Chair, Old Schoolhouse Library Project, Woodside

1987 - Present Trustee Peninsula Blood Bank Chair, Legal Committee

1993 President, San Mateo County Bar Association

1994 - 1996 Board of Directors, Shelter Network of San Mateo County

1992 - 1995 Director, San Mateo County Bar Association. Past Chair of the following San Mateo County Bar Association Committees: Insurance, Medical/Legal, Personnel, Alternative Dispute Resolution, Bench/Bar. In addition, member of several select Bench/Bar Committees including; Selection of Arbitration Panel, Fast Track Committee, Complex Litigation Rules Committee, Selection of San Mateo County ADR Coordinator

1992 - 1996 Board of Directors, John K. Kealy Company

1994 - Present Trustee of the Poulsen Trusts (Squaw Valley, CA)

1999 - Present Board of Directors, Woodside Foundation

2000 - 2002 Board of Directors, Legal Aid Society, San Mateo County