John R. Riddell


John R. Riddell completed his undergraduate education at the University of Pennsylvania in 1981. Following graduation, Mr. Riddell attended Villanova Law School, receiving his juris doctor in 1984.

Following graduation, Mr. Riddell immediately began his legal career and developed an extensive defense litigation practice in the Philadelphia area before coming to Marshall Dennehey Warner Coleman & Goggin in early 1990.

During his years with the firm, Mr. Riddell has defended clients in professional malpractice, premises liability, products liability, and motor vehicle liability matters. He was elected shareholder in 1993. Mr. Riddell is admitted in Pennsylvania and New Jersey as well as the Eastern District of Pennsylvania. 

Classes/Seminars Taught

CLE Down the Shore, Pennsylvania Bar Institute, August 2010

Published Works
"The Rescue Doctrine Meets Superseding Cause," Defense Digest, Vol. 18, No. 4, December 2012

“The PIGA Setoff Statute Revisited,” Defense Digest, Vol. 6, No. 6, December 2000

"PIGA Sett-Off Statute Interpreted," Defense Digest, Vol. 6, No. 1, February 2000 

"Is 'Double-Dipping' Still Permitted Under The Income Loss Provisions Of The MVFRL?," Defense Digest, April 1996 

New Jersey
Villanova University School of Law (J.D., 1984)
University of Pennsylvania (B.A., 1981)
Honors & awards
Associations & memberships
Delaware County Bar Association Member
Pennsylvania Bar Association Member
Year joined