Schnader Harrison Segal & Lewis LLP is a U.S. law firm based in Philadelphia Pennsylvania founded in Philadelphia in 1935 by former Pennsylvania Attorney General William A. Schnader Bernard G. Segal a former Deputy Attorney General serving under Schnader and Francis A. Lewis. The firm was initially named Schnader & Lewis. Eventually Segal was added as a name partner. The fourth name partner Earl G. Harrison joined the firm in 1948.