Simon M. Lassel

(305) 856-2444
Fax: (305) 860-2588


Simon Lassel joined Katz Barron in 2022. He is a member of the firm’s Litigation Department with over nine years of experience. Simon has handled a broad range of litigation matters from state and federal cases, to appeals. His litigation experience ranges from arbitrations and non-jury bench trial to complex multi-party interstate actions.

Simon’s experience is focused on complex commercial and civil matters, including partnership disputes, contract disputes, employment law, class action, corporate officer advancement/indemnification, construction litigation, negligence claims, and various other real estate and business-related disputes.

Areas of Practice

  • Complex and General Commercial Litigation
  • Construction Litigation
  • Class Action
  • Employment
  • Arbitration
  • Non-competition Agreements and Unfair Competition Disputes
  • Personal Injury and Wrongful Death

Representative Experience

  • Lead trial counsel defending breaches of operating agreement, contract and derivate claims with ruling in favor of clients following a two-day non-jury trial;
  • Trial counsel for multiple AAA arbitration claims pertaining to broker breach of fiduciary duty claims with total awards exceeding $2,500,000 following five-day final hearings with three-member panels;
  • Trial counsel for class action lawsuit for failure to return pre-paid ticket expenses following COVID-19 cancelations providing full refunds to all class members; and
  • Lead trial counsel for wrongful breach of lease agreement providing judgment in excess of $50,000 following jury trial.

Published Opinions

  • Off Lease Only, Inc., v. LeJeune Auto Wholesale, Inc., 187 So. 3d 868 (Fla. 3rd DCA 2016);
  • Bank of America v. Cadet, 183 So. 3d 477 (Fla. 3rd DCA 2016);
  • Nationstar v. Craig, 193 So. 3d 74 (Fla. 3rd DCA 2016); and
  • Fannie Mae v. Linares, 202 So. 3d 886 (Fla. 3rd DCA 2016).

Bar Admissions

  • Florida
  • U.S. District Court for the Southern District of Florida; and
  • U.S. District Court for the Middle District of Florida.


  • Nova Southeastern School of Law, Davie, Florida, 2012
  • Temple University, Philadelphia, Pennsylvania, 2005, B.A.

Professional Associations and Memberships

  • Miami-Dade County Bar Association
  • American Bar Association
  • The Association of Trial Lawyers of America

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