 Shrager was a founding member of Trial Lawyers for Public Justice (now known as Public Justice Foundation), and was a principal founder of the Pennsylvania Trial Lawyers Association (now the Pennsylvania Association for Justice and served as president (1971–1972).A lifetime member of the Association of Trial Lawyers of America, he served as president (1983–1984), and also as president of the Roscoe Pound Foundation (1985–1988), which works to preserve access to the civil-justice system.Although a leading opponent of No-Fault Insurance, Shrager later edited the definitive treatise on the Pennsylvania No-Fault Motor Vehicle Act.