John represents a variety of regional and national employers in collective bargaining, labor arbitration, and employment-related litigation. He is also labor counsel for a number of municipalities, representing them in their dealings with both union and non-union employees. Specifically, John has handled matters with the SEIU, UFCW, 1199C Healthcare and Hospital Employee Union, CNA, International Union of Operating Engineers, and PASNAP. He has served as presenter and partial arbitrator for numerous Act 111 interest arbitrations and represents employers in grievance arbitrations. He regularly advises municipal clients on labor and employment issues.

In the private sector, John represents employers in the steel, construction, health care, chemical, transportation, food services, waste management and public utility industries. In the public sector, John deals with both union and non-union employees for a number of municipal governments.

John recently taught a course in collective bargaining and arbitration at Rutgers Law School and Widener University's School of Business. He is a frequent author and lecturer on several national education programs in the field of labor and employee relations. John has lectured extensively on all facets of private and public sector labor and employment law on behalf of numerous organizations, including the American Arbitration Association, National Academy of Arbitrators, Council on Education; International Bridge, Tunnel and Turnpike Authority; International City/County Management Association; and the National League of Cities.