Atty. Jason Banonis
Jason is a highly accomplished defense attorney with more than 20 years of experience handling complex casualty litigation. Throughout his career, Jason has defended hundreds of premises liability, sports and entertainment, retail, dram shop, motor vehicle and product liability matters, trying several cases to verdict.
Profile Summary
About Jason Banonis at a glance
Jason Banonis is a Shareholder based in King Of Prussia, Pennsylvania, practicing at Marshall Dennehey. They have 26+ years of legal experience, licensed to practice since 2000. Their practice focuses on medical malpractice, class action, zoning, product liability, and health care. Admitted to practice in New Jersey (2000), Pennsylvania (2000), U.S. District Court District of New Jersey (2000), and U.S. District Court Eastern District of Pennsylvania (2000). Educated at Widener University School of Law, Wilmington, Delaware (J.D., 1999) and Bucknell University (B.S.B.A., 1994). Serands clients in King Of Prussia, PA and the surrounding metropolitan area.
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About
- Jason is a highly accomplished defense attorney with more than 20 years of experience handling complex casualty litigation
- Throughout his career, Jason has defended hundreds of premises liability, sports and entertainment, retail, dram shop, motor vehicle and product liability matters, trying several cases to verdict
- Additionally, he has handled several mold exposure claims involving subcontractors, school districts and a regional hospital
- He has also represented Fortune 500 companies and a considerable number of service providers in sports and entertainment, retail, corrections, healthcare, facilities, restaurant and bar industries
- In addition to his seasoned trial advocacy skills, he regularly uses focused discovery and technology to effectively and creatively represent his clients in a cost-efficient manner
- He was also involved in the MDL litigation for a distributor of latex products
- Jason regularly serves as a court-appointed arbitrator in the Court of Common Pleas of Lehigh County, Court of Common Pleas of Northampton County and United States District Court for the Eastern District of Pennsylvania
- He also serves as a judge pro tem in the Court of Common Pleas of Philadelphia County
- Civil litigants often hire Jason to serve as a private arbitrator in their matters
- Among his numerous professional affiliations, Jason is the Past President and Board Member of the Pennsylvania Defense Institute (PDI), a 400-member organization comprised of lawyers, insurance company executives, self-insurers, and independent adjusters who are focused on promoting the interests of the civil litigation defense bar
- In July 2020 he received the PDI's 'Defense Attorney of the Year' Award for his statewide efforts in conjunction with the plaintiff’s bar to reopen Pennsylvania courts and law offices during the Covid-19 pandemic
- He also has received the Defense Research Institute’s Exceptional Performance Citation for 2019-2020
- He has participated extensively as a panelist or moderator for various Continuing Legal Education programs
- He most recently presented to the Northampton County Bar Association on the topic of Representing Your Client at an Online/Virtual Mediation
- Jason was also an appointed member of the Pennsylvania Bar Association’s Covid-19 Task Force
- As one of the civil defense bar representatives, he helped developed processes, technologies and rules recommendations to enable the legal system to continue operations under crisis conditions
- He now serves on the DRI Center for Law and Public Policy task force dedicated to monitoring legislative and rulemaking developments at the state level
- Devoted to community service, Jason is President of Lower Saucon Township Council
- His community service on Township Council includes liaison to Landfill, Parks & Recreation, Municipal Police Contract and Active Transportation Committees
- He formerly served for ten years as the Chairman of the Lower Saucon Township Zoning Hearing Board, deciding substantive and procedural challenges to the validity of land use ordinances
- Honors & Awards •Board of Governors of Bowie State University’s Maguire Academy for Risk Management and Insurance (2025) •Top Lawyers of the Lehigh Valley, Litigation (2025) •2020 Pennsylvania Trailblazer, The Legal Intelligencer •Pennsylvania Bar Association (PBA) COVID-19 Task Force •Pennsylvania Defense Institute (PDI), Defense Attorney of the Year, 2020 •Defense Resource Institute - Exceptional Performance Citation 2019-2020 •Pennsylvania Super Lawyer Rising Star (2007-2008) Classes & Seminars Taught •Project Litigate - Panel Discussion, 2024 Pennsylvania Defense Institute (PDI) Annual Conference, Bedford Springs, PA, July 12, 2024 •Civil Litigation State of Affairs, The Impact of COVID-19 in New York, Connecticut, Pennsylvania, New Jersey, Florida & What’s Next - Moderator, Marshall Dennehey Client Webinar, June 2021 •Civil Litigation Updates in COVID-19 Litigation - Where Do We Stand One Year Later?
- Marshall Dennehey Webinar, May 2021 •How to Represent Your Client in Virtual Mediation, webinar presented by Northampton County Bar Association, May 21, 2020 •An Overview of Pennsylvania Law and Effective Litigation Management Strategies, Marshall Dennehey Client Seminar, June 2015 •An Overview of Pennsylvania Automobile Liability, Marshall Dennehey Client Seminar, April 2015 •Issues and Defenses in Pennsylvania Premises Liability Cases, American National Red Cross' Dedicated Liability Unit, July 2011 •Pennsylvania Liability Seminar, Crawford & Company •Pennsylvania Motor Vehicle Liability Seminar, Laidlaw Transit, Inc. •Persuasion, Civility and How Jurors Make Decisions, Panelist and moderator, Pennsylvania Defense Institute North Region Ethics CLE Program •Advanced General Liability Seminar, organizer and moderator, PDI East with federal and state judges Published Works •“Social Media: The Discoverable Window to the Trust,” LexisNexis Martindale-Hubbell, September 21, 2011, and Defense Digest, Vol. 17, No. 3, September 2011 Results Unanimous Defense Verdict in Premises Liability Civil Jury Trial Under COVID Restrictions We obtained a unanimous defense verdict in a civil jury trial in Northampton County, Pa. under COVID restrictions
- In this premises liability case, the plaintiff claimed he had slipped on snow and ice on a sidewalk and suffered a comminuted tri-malleolar fracture, requiring two surgeries
- At trial, Jason demonstrated that the plaintiff failed to establish that the accident occurred on the property his client maintained as power-of-attorney, or that his client breached any limited duty owed to a licensee
- The socially-distanced jury returned its verdict in favor of the defense in one hour
- News Jason Banonis Elected to the Board of Governors of Bowie State University’s Maguire Academy for Risk Management and Insurance July 17, 2025 Marshall Dennehey Signs Pledge as Signator to the Pennsylvania Supreme Court’s Project LITIGATE Initiative October 29, 2024
Practice Areas Explained
Jason Banonis's Areas of Practice
Each practice area below reflects the types of cases Jason Banonis handles, with a brief overview of what that area of law covers.
Medical malpractice lawyers represent patients harmed by negligent doctors, hospitals, and other providers. Free case review, no fee unless you win.
Jason Banonis is one of 49,086 medical malpractice attorneys indexed nationally. Browse medical malpractice attorneys in Pennsylvania →
Jason Banonis is one of 26,424 class action attorneys indexed nationally. Browse class action attorneys in Pennsylvania →
Jason Banonis is one of 40,226 zoning attorneys indexed nationally. Browse zoning attorneys in Pennsylvania →
Jason Banonis is one of 66,193 product liability attorneys indexed nationally. Browse product liability attorneys in Pennsylvania →
Health care attorneys for HIPAA, Medicare, Medicaid, regulatory compliance, and medical licensing matters.
Jason Banonis is one of 66,735 health care attorneys indexed nationally. Browse health care attorneys in Pennsylvania →
Jurisdictional Context
Why local counsel matters in Pennsylvania
Practicing law in Pennsylvania. Legal matters in Pennsylvania are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in King Of Prussia are typically filed in the local municipal court or the appropriate Pennsylvania state district court, depending on subject matter and amount in controversy. An attorney licensed in Pennsylvania brings working knowledge of local procedural deadlines, judicial practices in this andnue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in Pennsylvania courts without local counsel or pro hac vice admission.
Looking for additional Pennsylvania attorneys? Browse all attorneys in King Of Prussia or all attorneys in Pennsylvania.
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