O'Donnell, Weiss & Mattei, P.C. is a general practice law firm founded in 1955 and located at 41 High Street, Pottstown, PA. Through the years, the firm has become the largest in western Montgomery County serving the immediate tri-county area of Berks, Chester and Montgomery Counties. O'Donnell, Weiss & Mattei, P.C. is firmly committed to the service of our clients and to the support of ...