Hallett, Zerillo and Whipple is Maine’s premier business litigation and intellectual property firm.

What We Do

Patent and Trademark litigation.  Injunctions and temporary restraining orders. Contracts and white collar crime. Sophisticated business disputes and complex torts. You name it, we can do it.

We want you to achieve better results

Preparation counts – in and out of the courtroom. From helping you make sound settlement decisions to guiding you through litigation, we are happy to help you resolve your case.

Practice Areas

Some of our business litigation practice areas include:

  • Intellectual Property Litigation
  • Breach of Contract/Fiduciary Duty
  • Business Torts
  • Partnership Disputes
  • Non-Compete Clauses and Confidentiality Agreements
  • White Collar Crime
  • Internal Investigations
  • Regulatory Investigations and Litigation
  • Insurance Disputes
  • Business Litigation Appeals

We aggressively seek litigation solutions short of trial, and we have significant expertise in alternative dispute resolution methods such as mediation and arbitration. When trial is called for, we bring experience and skill to the courtroom to fully represent our clients.

Intellectual Property

We have relationships with the leading intellectual property and patent prosecution firm in Maine to handle patent, trademark and copyright work for you if the need arises. When litigation is needed for a patent, trademark or copyright case, we are here to handle the litigation aspects of your case. We are backed up by our strategic IP team, Caseiro Burke (link to www.caseiroburke.com) who handle the technical side of intellectual property cases.


Traditionally, business litigation cases are hourly fee matters, and most of our cases in this area of practice are hourly. In some cases, however, we take business contingency fees, or partial contingency and partial hourly fees, depending on the circumstances.

Internal Investigations

We assist companies and organizations in investigating a wide variety of alleged wrongdoing. If your organization requires an internal investigation based on money laundering or embezzlement concerns, or the like, we may be able to assist you in doing your due diligence.

White-Collar Criminal Defense

We represent corporate and individual clients in all stages of federal and state criminal proceedings, and in related regulatory investigations, including grand jury, securities commissions, criminal trials, and appeals, as well as before investigatory agencies.

Our experience runs the full gamut of business-related criminal matters: witness tampering, Grand Jury subpoenas, fraud obstruction of justice, embezzlement, mail and wire fraud, money laundering, RICO, securities and tax crimes.

For more information, please give us a call.  Email inquiries may also be sent to Tim Zerillo at

Maine Attorneys You Can Trust

Recent Trial Results:

  • Not Guilty - Murder Trial
  • Case Dismissed - Federal Charge - Possession of a Stolen Firearm
  • Not Guilty - Rape Trial
  • Case Dismissed - Assault/Domestic Violence
  • No Charges/Investigation Terminated - Theft of Gov't Military Property
  • No Charges - Assault
  • Not Guilty - Unlawful Sexual Touching
  • Not Guilty - Assault/Domestic Violence
  • No Charges/Investigation Terminated - Drug Trafficking
  • $625,000 Mid-Arbitration Settlement - Mild Traumatic Brain Injury Case
  • $1,000,000 + Pre-Suit Settlement - Sexual Abuse of a Minor
  • $90,000 Jury Verdict - Motor Vehicle Accident - Soft Tissue Injury
  • $4,500,000 Pre-Suit Settlement - Wrongful Death - Commercial Motor Vehicle Accident
  • $87,500 Litigation Settlement - Fishing Boat Collision - Personal Injuries
  • $125,000 Eve of Trial Settlement - Assault and Battery - Personal Injuries
  • $120,000 Litigation Settlement - Bicycle Hit by Drunk Driver - Recovered MORE Than the Limit of the Insurance Policy
  • $92,500 Litigation Settlement - Sexual Abuse of a Minor
  • $300,000 Pre-Suit Settlement - Medical Malpractice
  • $105,000 Litigation Settlement - Trucking Accident - Personal Injuries
  • $100,000 Pre-Suit Settlement - Motorcycle Accident
  • $160,000 Litigation Settlement - Sexual Abuse of a Minor
  • $85,000 Eve of Trial Settlement - Motor Vehicle Accident - Soft Tissue Injury
  • Maximum Insurance Policy Recovery - Motorcycle Collision
  • Not Guilty - OUI
  • Case Dismissed - OUI
  • Negotiated the Dismissal of OUI Charge for a Significantly Lesser Charge
  • Negotiated Plea and Allowed the Client to Avoid a Conviction for OUI
  • Rising BAC defense - CASE DISMISSED
  • Intoxilyzer not maintained properly - BMV & Crim. Charges DISMISSED
  • Unconstitutional vehicle stop - Motion to Suppress GRANTED
  • Failure to follow Intoxilyer Protocol - OUI DISMISSED
  • Client refused Roadside tests - No Probable Cause for OUI arrest - OUI Dismissed

Dedicated to the Passionate Representation of Our Clients

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