Sean P. Greenwalt


    Sean is an associate in the firm's Casualty Department, where he primarily handles, first party auto insurance claims, fraud/special investigations, and breach of contract disputes.

    Prior to joining Marshall Dennehey, Sean worked as outside counsel for a national automobile insurance company and previously worked as in-house counsel for Florida's largest non-standard automobile insurance company. Before working in insurance defense, 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. In law school, Sean served as an Associate Editor on Law Review and a member of the Moot Court Board.

    Published Works

    “A Warning on Wording: Appellate Court Reverses Summary Judgment Ruling for Insurer After Finding Condition Precedent Affirmative Defense Too Narrowly Pled,” Defense Digest, Vol. 29, No. 3, September 2023

    U.S. District Court Middle District of Florida
    Ave Maria School of Law (J.D., magna cum laude, 2016)
    Old Dominion University (B.A, 2012)
    Associations & memberships
    Florida Bar Association
    Year joined