Sean is a shareholder in the firm’s Casualty Department where he focuses his practice on amusement, sports, and recreation matters as well as fraud and personal injury protection disputes. Sean litigates a variety of complex matters on behalf of corporations involving premises liability, commercial auto liability, catastrophic loss, wrongful death and commercial contract disputes. He also has experience defending first-party auto coverage suits and conducting examinations under oath.
Sean is a member of the Florida Defense Lawyers Association and Claims Litigation Management Alliance. He routinely writes articles and presents on legal developments in the insurance industry, and has also been published in Insurance Journal. Sean also volunteers as a Guardian ad Litem child advocate in Hillsborough County.
Prior to joining Marshall Dennehey, Sean worked as outside counsel for a national automobile insurance company and previously worked as in-house counsel for a national automobile insurance company. Before working in civil litigation, Sean was an attorney for Florida's Department of Children and Families, where he successfully litigated countless legal issues and obtained numerous successful bench trial verdicts that protected the vulnerable and allowed children to become adopted.
Sean earned his juris doctor and graduated magna cum laude from Ave Maria School of Law in Naples, Florida. During law school, Sean served as an Associate Editor on Law Review and a member of the Moot Court Board. He also was a Judicial Intern for the Honorable Judge Douglas Frazier of the US District Court, Middle District of Florida. Sean obtained his Bachelor of Arts degree from Old Dominion University where he was inducted into the honor society for Communication majors, Lambda Pi Eta.
Year joined
2021
Pro Bono
Guardian ad Litem, Hillsborough County
Results
Dismissal of Florida No-Fault/PIP action.
Personal Injury Protection (PIP) Litigation
December 12, 2022
The action was brought against an out-of-state insurer based on the plaintiff’s failure to arbitrate. The plaintiff filed suit against a New Jersey insurance company over treatment that occurred in Florida. However, the subject policy and the laws of New Jersey require mandatory arbitration prior to initiating litigation. On the defendant’s motion to dismiss and compel arbitration, the court found that the doctrine of lex loci contractus applied, which required the plaintiff to comply with New Jersey law and policy and to submit to arbitration prior to filing suit.
Thought Leadership
Marshall Dennehey Announces 2026 Shareholder Class and Special Counsel Promotions
December 15, 2025
Marshall Dennehey is pleased to announce that 16 attorneys have been elected shareholders of the firm effective Jan. 1, 2026. Additionally, two attorneys have been promoted from associate to special counsel.
Arbitration Near and Far: Fla.’s Fifth District Court of Appeal Issues Guidance for Arbitration Scope Disputes
Tampa
Amusements, Sports & Recreation Liability
December 3, 2025
Florida Court Limits Privilege for Claim File Notes in Depositions
Tampa
Personal Injury Protection (PIP) Litigation
Fraud/Special Investigation
March 1, 2025
It is a situation that many attorneys and insurance professionals have encountered in the past. SIU Spotlight, Issue 2, Vol. 1, March 2025 is prepared by Marshall Dennehey to provide information on recent legal developments of interest to our readers.
Florida Appeals Court Nods Enforceability of Forum Selection Clauses in PIP Cases
Tampa
Personal Injury Protection (PIP) Litigation
November 27, 2024
With Differing Court Rulings on Pre-Suit Notice of Intent, Florida Insurers Left Guessing
Tampa
Personal Injury Protection (PIP) Litigation
December 11, 2023
Classes / Seminars Taught
A Proposal for Settlement for All Seasons: Effective Use of the PFS in Florida’s New Legal Landscape, Florida Liability Claims Conference, Lake Buena Visit, FL, June 18, 2025
First Party Auto (PIP) and Property Year in Review Preview, The Institutes CPCU Society - Central Florida Chapter, November 14, 2024
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or her at the highest level of professional excellence for their legal knowledge, communication skills and ethical standards.
Distinguished: An excellent rating for a lawyer with some experience. This rating indicates the attorney is widely
respected by their peers for high professional achievement and ethical standards.
Notable: This rating indicates that the lawyer has been recognized by a large number of their peers for strong ethical standards.
