Bill Felstiner was born in New York, and graduated from Phillips Exeter Academy and Yale College.
In 1969, Bill Felstiner started a university teaching career as associate dean and lecturer at Yale Law School.
In his early work, Bill Felstiner focussed on alternative ways to solve conflicts (avoidance, mediation, litigation etc.
From 1994 to 2000, he also chaired the influential Working Group on Legal Professions[3] of the Research Committee on Sociology of Law, which produced a number of important collections.
In 2007 he founded, together with colleagues from Santa Barbara, the Chad Relief Foundation (CRF) Archived 2010-01-25 at the Wayback Machine and became its first director.