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Thomas R. Heisler is an experienced trial lawyer who has litigated a wide variety of disputes in state and federal courts. His practice focuses on business-related disputes in the areas of real estate, shareholder and business partnerships, and commercial contracts. Thomas also has an active practice in trust and estate litigation and in the representation of financial institutions.

Thomas is highly effective at communicating with juries, courts, and clients, briefing complex issues, and developing creative case strategy both at trial and on appeal.

Prior to joining Greenberg Traurig, Thomas practiced in the Chicago headquarters of a prominent international law firm, and later as a partner at an elite Chicago litigation boutique. While there, he handled numerous trials and appeals, including obtaining a multimillion-dollar jury verdict in a civil fraud case on behalf of the estate of a Chicago businesswoman.


  • Complex commercial litigation
  • Real estate litigation
  • Shareholder and partnership disputes
  • Trust and estate litigation
  • Financial institution litigation



  • Won a multimillion-dollar jury verdict in a civil fraud case on behalf of the estate of a deceased Chicago businesswoman defrauded by a Chicago-area neurosurgeon through a contract to make a will, and successfully defended the judgment on appeal.°
  • Obtained summary judgment for a major property management company in its defense of a lawsuit brought by a commercial property owner alleging breaches of contract, fiduciary duty, and fraud.°
  • Represented a direct mail company in its suit against a commercial equipment manufacturer for selling client defective commercial printing machinery and successfully defeated the dispositive motions of the manufacturer before negotiating a settlement on behalf of the client.°
  • Won a several million-dollar judgment, including punitive damages, in favor of a physician defrauded by his former business partner.°
  • Obtained a directed verdict on behalf of an individual client in a trial arising out of a will and trust agreement.°
  • Represented a bank in a civil RICO case in federal district court brought by a former bank customer which sought to hold the bank liable for an embezzlement scheme involving the customer’s former fiduciaries.°
  • Represented the founder of a construction company in his suit against his former business partners for various breaches of contract, fiduciary duty, and fraud in connection with numerous real estate development projects in Illinois and Florida.°
  • Represented a charitable organization in its suit against an individual who misused powers of attorney to change the beneficiary of various POD accounts the decedent intended to benefit the organization.°
  • Represented a securities trading firm in its defense of a case brought by a former employee, obtaining a jury verdict in the trading firm’s favor.°
  • Represented holders of a casino license in their successful appeal of a recusal challenge to a federal bankruptcy court judge, and represented the clients at a bench trial in federal district court.°

°The above representations were handled by Mr. Heisler prior to his joining Greenberg Traurig, P.A.

Recognition & Leadership

  • Recipient, "Thomas H. Morsch Award for Pro Bono Service," 2010
  • Member, The Florida Bar
  • Member, Trust Litigation Committee of the Real Property Probate Real and Trust Law Section of the Florida Bar
  • Member, Dade County Bar Association
  • Member, Society of Trust and Estate Practitioners
  • Member, Estate Planning Council of Miami
  • Member, Board of Directors the Florida Grand Opera


  • J.D., cum laude, Northwestern Pritzker School of Law
    • Comment Editor, Journal of Criminal Law & Criminology
  • M.F.A, Creative Writing, The School of the Art Institute of Chicago
  • B.A., The Colorado College
  • Florida
  • Illinois
  • Supreme Court of Illinois
  • U.S. District Court for the Southern District of Florida
  • U.S. District Court for the Northern District of Illinois, including Trial Bar
  • U.S. District Court for the Western District of Michigan
  • U.S. Court of Appeals for the Seventh Circuit