Mark Mullen joined Cozen O'Connor in September 1985 and is a member in the firm's Subrogation & Recovery Department. Mark has particular expertise in federal court procedure, spoliation issues, and the economic loss doctrine.

Throughout his career handling subrogation matters for more than 25 years, Mark has investigated fires in refineries, warehouses, commercial properties, and vehicles, as well as explosions, building collapses, machine failures, and floods all over the country and internationally. He has investigated failures in more than 20 states and tried cases or handled appeals in both state and federal courts in Illinois, Maryland, New York, Ohio, Pennsylvania, Virginia and the District of Columbia. Many of the cases he handles involve confidential settlements with the recovery of substantial monies for both insured and uninsured losses.

Mark is a frequent lecturer on legal issues with specialization on the topics of federal court practice and procedure and spoliation of evidence. Mark is active in The Children of The Father Foundation, a nonprofit Catholic Ministry involved in spiritual and corporal works of mercy.

Mark is a summa cum laude graduate of St. Joseph's University and a cum laude graduate of the Villanova University School of Law, where he served as a note and comment editor of the Villanova Law Review. Following graduation, he spent two years as a law clerk to The Hon. Donald W. VanArtsdalen in the U.S. District Court for the Eastern District of Pennsylvania.