Philadelphia, PA - (215) 587-9400
Cherry Hill, NJ - (856) 429-6331
Media, PA - (610) 892-2732


A founding shareholder of Deasey, Mahoney & Valentini, Ltd., Francis “Frank” Deasey has a long history in the legal industry. In the mid-70’s, Frank joined his father’s law firm, where he was quite involved with maritime law and insurance defense. Over the years, the firm evolved to be what is now known as Deasey, Mahoney & Valentini, Ltd.

Frank currently serves as national coordinating counsel for a major insurer, defending catastrophic construction accidents involving cranes, power cranes, and other aerial lift devices. In this capacity, Frank handles crane litigation in Massachusetts, Rhode Island, New York, New Jersey, Pennsylvania, Maryland, Virginia, Illinois, South Carolina, North Carolina, and Washington.

Frank also handles coverage work for insurance companies. He evaluates coverage issues and defends insurance companies in declaratory judgment actions.

With his experience of more than 100 successful jury trials, Frank has also gained considerable recognition in the areas of products liability, construction, and insurance coverage litigation. For example, in the One Meridian Plaza Fire litigation, which was a notorious fire in Philadelphia, Frank was responsible for the coordination of a joint defense effort against the building owners’ $400 million damage claim.

Over the years, Frank has also represented excess & surplus lines carriers, evaluating excess exposure and defending the insured in catastrophic injury cases.

In addition to this insurance defense litigation and counsel experience, Frank has taught numerous trial techniques courses for the Philadelphia Bar Association, the Academy of Advocacy, and the National Institute of Trial Advocacy. He speaks regularly at meetings of the Crane and Aerial Lift Subsection of the Defense Research Institute (DRI). A frequent lecturer on insurance coverage, trial advocacy, and products liability defense, Frank has authored several articles on these subjects. He is called upon routinely by the firm’s insurance clients to conduct presentations on a variety of insurance coverage issues.


  • Canisius College (B.A. 1972)
  • Villanova University School of Law (J.D. 1977)


  • Deasey, Mahoney & Valentini, Ltd. (1986–Present)
  • Deasey, Scanlan & Bender (1978–1986)
  • The Honorable Albert F. Sabo, Philadelphia Court of Common Pleas, Law Clerk (1977–1978)

Professional Affiliations

  • American Bar Association
  • Defense Research Institute
  • Federation of Defense and Corporate Counsel (FDCC)
  • Pennsylvania Bar Association
  • Pennsylvania Defense Institute
  • Philadelphia Bar Association
  • Philadelphia Association of Defense Counsel

Awards and Designations

  • Pa Superlawyer 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017 & 2018.
  • Fellow – the Academy of Advocacy (1987–1989)
  • Historical Society of the U.S. District Court for the Eastern District of Pennsylvania – Maritime and Admiralty Historical Symposium
  • Philadelphia Bar Association Trial Advocacy Program

Attorney News

Phone: (215) 587-9400 X 1134
Fax: (215) 587-9456
Email Francis J. Deasey
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Bar Admissions

  • Pennsylvania (1977)
  • U.S. District Court for the Eastern District of Pennsylvania (1978)
  • U.S. Court of Appeals for the Third Circuit (1982)
  • U.S. District Court for the Middle District of Pennsylvania (2005)

Practice Areas

ABOUT OUR FIRM | PRACTICE AREAS | LEGAL TEAM | MEDIA CENTER | CONTACT US | NEWSLETTERS Suite 3400 - 1601 Market St.- Philadelphia, PA 19103 - Telephone: (215) 587-9400 - Facsimile: (215) 587-9456
923 Haddonfield Road, Suite 300, Cherry Hill, NJ 08002 - Telephone: (856) 429-6331 - Facsimile: (856) 429-6562
103 Chesley Drive - Lafayette Building - Suite 101 - Media, PA 19063 - Telephone: (610) 892-2732 - Facsimile: (215) 587-9456
appellate / automotive liability / bad faith / civil rights / class action / construction defects / construction site injury / crane and rigging litigation / environmental toxic tort litigation and coverage / excess insurance litigation / fire and arson claims / governmental liability / immigration reform litigation / insurance coverage / labor and employment law / liquor liability/dram shop / premises liability / products liability / professional liability / social services and human services claims / subrogation / transportation

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