Welcome to Donald G. Walsh, P.C. . We have been providing legal services in the New Haven area for over 50 years. The Law Office of Donald G. Walsh, P.C. is a full service litigation firm that focuses on representing people who have been injured as a result of the negligence or wrong-doing of others. We have successfully represented many clients throughout Connecticut. Our firm has extensive experience in State, Federal Courts, and the Mohegan Trial Gaming Court.