Anna Hayes is a litigation attorney based in Holland & Knight's Washington, D.C., office. She advises and defends clients in a variety of government and regulatory matters with a focus on antitrust and competition. Ms. Hayes has worked for her clients to achieve victories at trial, has secured dismissal of investigations and inquiries by the U.S. Department of Justice (DOJ) and other agencies, and has defended her clients against claims in International Chamber of Commerce (ICC) arbitration. Ms. Hayes represents public and privately held companies, trade associations, nonprofit organizations and educational institutions.

Ms. Hayes' notable representative matters include:

  • defending a client against multiple class action lawsuits alleging anticompetitive conduct related to residential real estate sales
  • representing a real estate developer in a six-day trial over a General Services Administration (GSA) leasing dispute involving breach of contract, resulting in a full victory and monetary judgment for her client
  • advising clients in responding to Civil Investigative Demands (CIDs) by the DOJ inquiring into potential Sherman Antitrust Act violations
  • representing an engineering, procurement and construction (EPC) contractor in a multibillion-dollar ICC arbitration dispute involving fraud and breach of contract issues arising from the construction of a mega infrastructure project in South America
  • counseling companies and trade associations in antitrust compliance
  • representing a landowner in an appeal concerning a land use and zoning decision by the District of Columbia Board of Zoning Adjustment (BZA)
  • advising a nonprofit trade association member related to an internal board of directors dispute

In addition, Ms. Hayes maintains an active pro bono practice. She has represented a charitable organization in connection with protecting its intellectual property, including trademark registration, and has volunteered with the Lawyers' Committee for Civil Rights Under Law to ensure eligible voters' access to participate in elections.

Prior to joining Holland & Knight, Ms. Hayes clerked for the Honorable Marcia Morales Howard in the U.S. District Court for the Middle District of Florida. She was involved in criminal and civil bench and jury trials and gained experience in a variety of disputes, including business torts, employment litigation, securities litigation and insurance matters.

While in law school, Ms. Hayes was elected executive articles editor for the Florida Law Review. She also served as a teaching assistant for legal writing and appellate advocacy courses, and tutored first-year students in criminal law and civil procedure.


  • University of Florida Levin College of Law, J.D., with honors
  • Georgia Institute of Technology, B.S., with high honors
Bar Admissions/Licenses
  • District of Columbia
  • Florida
Court Admissions
  • U.S. District Court for the District of Columbia
  • U.S. District Court for the Southern District of Florida