William D. Anderson completed his undergraduate work at the University of California at Berkeley, obtaining a B.S. degree with honors in 1969. He attended and graduated from Hastings College of Law, University of California in 1972. 

He was a Member of Moot Court and won an award for the best written brief. He has served as a panelist for the American Arbitration Association. He has served as Judge Pro Tem, Sonoma County Superior Court since 1990 and as a Sonoma County Superior Court Arbitrator since 1989.  He is a member of the Sonoma County Bar Association and the State Bar of California. He is a member of the Redwood Empire Trial Lawyers Association and served as its President in 1987. He is a member of the Northern California Association of Defense Counsel and the American Board of Trial Advocates.

"Mediation is successful because the parties actively participate in the process, have the opportunity to learn about the strengths and weaknesses of their case and, ultimately, to decide their fate with regard to litigation." - William D. Anderson