Expert Witness and Litigation Support

Green Hasson Janks assists attorneys, business leaders, business owners and government agencies with a wide range of litigation support services. While we are recognized as experts in intellectual property, entertainment, royalties and apparel, we also have extensive experience in a variety of other industries.

We provide financial insight and clarity during all stages of a business dispute, from case development and discovery, to expert witness testimony.

Whether in support of a trial, mediation or arbitration, we provide our clients with:

  • Review and critique of opposing expert opinions and testimony
  • Consultation on discovery, depositions and trial preparation
  • Clear and persuasive communication of findings through reports, exhibits and expert witness testimony

Service Offerings

  • Accounting Malpractice
  • Arbitration and Mediation
  • Business Dissolutions
  • Business Interruption
  • Commercial Damages
  • Complex Civil Litigation
  • Construction Disputes
  • Contractual Disputes
  • Corporate Reorganizations
  • Criminal Litigation
  • Damage Estimates
  • Discovery
  • Due Diligence Services
  • Expert Witness Testimony
  • Financial Investigations
  • Fraud and Mismanagement
  • Intellectual Property Disputes
  • Lost Profit Analysis
  • Motion Picture and Television Litigation
  • Participation Disputes
  • Partnership Disputes
  • Real Estate Disputes
  • Royalty Disputes
  • Stockholder Disputes
  • Unfair Competition
  • Unjust Enrichment
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What Our Clients Say


Specialized Service Team

Anant Patel
Anant PatelPartner
Anita Wu
Anita WuPrincipal
Ben Sheppard
Ben SheppardPrincipal
Ilan Haimoff
Ilan HaimoffPartner
Steven Sills
Steven SillsPartner
Tom Barry
Tom BarryPartner
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