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John E. Haller

Huntington Center
41 South High Street
Suite 2400
Columbus, OH 43215


K.C. Klusty

John is an experienced litigator and trusted advisor, focusing his practice on complex commercial litigation and business litigation. Practicing for more than three decades, he has developed a legal skill set that makes him a strong addition to any team. John remains focused on matters facing his clients, regardless of the level of complexity present when representing individuals and business clients in high-stakes litigation matters involving:

  • Restrictive covenant and theft of trade secrets
  • Breach of contract claims
  • Securities
  • Finance
  • Lender liability
  • Professional liability
  • Product liability

Clients also draw on John’s substantial experience in prosecuting and defending claims seeking injunctive relief in the area of unfair competition and trade secrets and he has lectured before professional groups on a wide range of topics, including the use of demonstrative evidence at trial and the litigation of issues regarding restrictive covenants and trade secrets.

Outside the office, John will tell you his claim to fame is achieving two holes-in-one on consecutive par threes in the same round of golf. Although, he attributes this to pure luck, he understands that successful legal representation is based on hard work.



Events and Presentations

Alternate biographies




  • J.D., cum laude, Indiana University, 1980
  • M.S., Indiana University, 1977
  • B.A., cum laude, Grace College, 1976

Bar and Court Admissions

  • Ohio, 1986
  • Indiana, 1980
  • U.S. Court of Appeals Sixth Circuit
  • U.S. Court of Appeals Seventh Circuit
  • U.S. District Court Northern District of Indiana
  • U.S. District Court Southern District of Indiana
  • U.S. District Court Southern District of New York
  • U.S. District Court Western District of Pennsylvania
  • U.S. District Court Northern and Southern Districts of Ohio