Johnson, Duffie, Swewart & Weidner - Law
Always a Step Ahead



Mark C. DuffieMark C. Duffie


Mr. Duffie focuses his practice on residential and commercial real estate transactions, zoning and land use, landlord/tenant, tax assessment law, planned communities, corporate law as well as other areas of administrative law.

He is a member of the Cumberland County, Dauphin County, and Pennsylvania Bar Associations. He is admitted to practice before the Federal District Court for the Middle District of Pennsylvania. He is a licensed Title Agent in the Commonwealth of Pennsylvania.

Mr. Duffie is an active member of the Greater West Shore Area Chamber of Commerce, the Harrisburg Chamber of Commerce and the Mechanicsburg Chamber of Commerce. He is a member of the Mechanicsburg Area Senior High School Alumni Association Board of Directors. He is a parishioner of Salem United Methodist Church in Etters.

Mr. Duffie resides in Lewisberry with his wife, Bridget, and their children, Parker and Kenna.

Areas of Practice:

Residential and Commercial Real Estate; Zoning and Land Use, Landlord and Tenant, Tax Assessment Law, Planned Communities, Corporate Law


University of Akron School of Law, J.D. 1995
University of Pennsylvania, B.A. 1991