Erin M. Murphy has joined the Chicago office of Arnstein & Lehr as special counsel in the firm's litigation group. Prior to joining Arnstein & Lehr, she was principal at the Law Office of Erin M. Murphy Ltd in Chicago. Before opening her own law office, she was assistant corporation counsel for the city of Chicago's Department of Law in its building and license enforcement/municipal prosecutions division. Murphy previously served as the corporate legal supervisor for McDonald's Corp. in its major litigation group. Murphy earned her law degree in 2002 from The John Marshall Law School, and has a bachelor's from Mundelein College of Loyola University in business administration and management.