Heidi A. Nadel is a Portland trial attorney with 20 years of experience representing companies and individuals in complex business disputes, as well as in shareholder and governance litigation, derivative suits and intellectual property litigation. She has tried and arbitrated dozens of cases in state and federal court, before regulatory bodies and in private arbitration.

Ms. Nadel is often called upon to lead high-stakes litigation and bet-the-company cases for clients of all sizes and across many industries. She prepares each case from Day One to win at trial, understanding this is the best way to achieve the most favorable result whether the case ultimately tries or not.

Ms. Nadel also has worked on nearly 100 appeals in state and federal courts across the country and is well-versed both in preserving issues for appeal in the trial court and in all aspects of appellate practice. She is often retained to work as appellate counsel or consulting counsel on appeals.

Before joining Holland & Knight, Ms. Nadel owned her own East Coast firm and was a partner at a Boston trial firm.


  • Handled litigation for a commercial lessor in connection with a claim by a broker for a multimillion-dollar commission arising from a lease on the client's property
  • Obtained agreed-upon permanent injunction from a client's competitor after filing suit and a motion for preliminary injunction on behalf of a client toolmaker company based on the competitor's copying client's catalog
  • Represented a buyer of fitness companies sued by sellers in connection with a dispute arising out of an Earn-Out provision in a complex Asset Purchase Agreement
  • Defeated a commercial tenant's claim that it held and had exercised an option to renew its lease to the exclusion of property owner's favorable lease with new tenant

  • Represented 50 percent owners in a deadlock situation in a sophisticated freeze out and breach of fiduciary duty dispute, alleging direct and derivative claims against shareholders, directors and officers of corporation
  • Defended a majority shareholder against alleged freeze out and wrongful termination claims filed by a minority shareholder
  • Successfully represented a general partner and majority limited partners against allegations of self-dealing, mismanagement and waste
  • Represented the trustee, executor and shareholder in complex litigation alleging conflict of interest, self-dealing and corporate wrongdoing by the co-trustee, co-executor and president of a close corporation
  • Won one of the largest jury verdicts in the Commonwealth of Massachusetts on behalf of an oppressed minority shareholder in a close corporation and trade secret dispute

  • Obtained a favorable ruling from the Massachusetts Supreme Judicial Court on a novel issue of law involving application of the attorney-client privilege among directors and owners in a deadlocked board situation
  • Successfully represented a commercial landlord in an appeal by a tenant to overturn an arbitration award
  • Upheld a multimillion-dollar jury verdict in favor of a client – an oppressed minority shareholder – against a majority shareholder in a close corporation and trade secret dispute
  • Represented an individual defendant on appeal after a 20-day bench trial to oppose plaintiffs' efforts to overturn dismissal of chapter unfair and deceptive trade practices claim
  • Obtained affirmance of favorable anti-SLAPP decisions in multiple cases
  • Represented a fitness company in an appeal presenting complex issues of contract law and appellate jurisdiction in the First Circuit Court of Appeals


  • Boston University School of Law, J.D., magna cum laude
  • University of Massachusetts Amherst, B.A., cum laude
Bar Admissions/Licenses
  • Massachusetts
  • Oregon
Court Admissions
  • U.S. District Court for the District of Massachusetts
  • U.S. Court of Appeals for the First Circuit
  • U.S. District Court for the District of Oregon
  • U.S. Court of Appeals for the Ninth Circuit
  • U.S. Supreme Court
  • Multnomah Bar Association
  • Oregon Women Lawyers
Honors & Awards
  • Martindale-Hubbell AV Preeminent Peer Review Rated
  • Top Women of Law, Massachusetts Lawyers Weekly, 2017
  • Massachusetts Super Lawyers magazine, 2013-2018
  • Top Women Attorney in Massachusetts, Boston Magazine, 2014
  • Rising Star, Massachusetts Super Lawyers magazine, 2006-2011
  • Up & Coming Lawyers, Massachusetts Lawyers Weekly, 2008


Speaking Engagements