McCann & Duffy is a Pennsylvania law firm concentrating in the defense of Pennsylvania workers' compensation cases on behalf of self-insureds, insurance carriers, claim service companies, adjusting companies, and third party administrators in the Eastern, Southeastern and Central Districts of the Bureau of Workers' Compensation. The principals, Mary N. McCann and Patricia S. Duffy have over 40 years of combined experience in this practice areas. We bring a passion and a drive to our work that our clients need and deserve.