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Gregory P Hansel

Gregory P Hansel

also known as Greg Hansel

Practice areas:

Litigation, Antitrust / Trade Law, Lawsuits & Disputes, Personal Injury, Class Action

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About Me

Greg Hansel is recognized nationally as a trial lawyer in complex business litigation. 

He has won victories for defendants and plaintiffs in some of Maine's largest cases and maintains a national and international litigation practice. He frequently advises overseas clients on U.S. legal matters. He is listed in Woodward/White's The Best Lawyers in America, which named him 2015 "Lawyer of the Year" for Mass Tort Litigation/Class Actions - Defendants. He currently serves as court-appointed co-lead counsel for direct purchasers in In re Automotive Parts Antitrust Litigation, a series of private civil actions, with more than $45 million in partial settlements to date, that stem from the largest Department of Justice criminal antitrust investigation in U.S. history. In other recent cases, he won a $19 million jury verdict as lead trial counsel in Missouri federal court in an international contract dispute; recovered $32 million for a class of oil companies in federal antitrust litigation in Miami; and brought an antiterrorism case on behalf of American missionaries murdered in Colombia. He has argued five times before the U.S. Judicial Panel on Multidistrict Litigation.





Greg is experienced in class actions, antitrust and trade regulation, international, securities, construction, corporate, intellectual property, products liability, mass torts, contract, fraud, healthcare, RICO, employment, real estate, land use, technology, lender liability, professional malpractice, personal injury, wrongful death, fidelity and surety, insurance, arbitration and mediation.


Languages Spoken: English, French

Practice Areas

Licensed since 1986

  1. Litigation: 30%
  2. Lawsuits & Disputes: 20%
  3. Antitrust / Trade Law: 20%
  4. Class Action: 15%
  5. Personal Injury: 15%

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Contact Info

Preti, Flaherty, Beliveau, Pachios Llp

1 City Ctr # 9546
Portland, ME, 04101-6420

Po Box 9546
Portland, ME, 04112-9546




MEAuthorized to practice law199708/14/2015
FLMember in Good Standing198608/17/2015
DCInactive 198805/24/2015

Professional Misconduct

We have not found any instances of professional misconduct for this lawyer.

Avvo Contributions

Legal Answers


Award NameGrantorDate Granted
Lawyer of the Year, Mass Tort Litigation/Class Actions DefenseBest Lawyers in America2015
AV Preeminent™Martindale Hubbell2015
Commercial Litigation - Defendants, PlaintiffsBest Lawyers in America2015
Mass Tort Litigation/Class Actions - PlaintiffsBest Lawyers in America2015
Litigation Star, General Commercial and Securities LitigationBenchmark Litigation2014
Litigation Star, Antitrust LitigationBenchmark Litigation2014
Business LitigationSuper Lawyers2014
Antitrust Litigation, Class Action/Mass TortsSuper Lawyers2014
Recognized for Commercial LitigationChambers USA: America's Leading Lawyers for Business2014
Board Certified in Antitrust and Trade Regulation LawThe Florida Bar2007
Board Certified in Business Litigation LawThe Florida Bar1996

Work Experience

TitleCompany NameDuration
PartnerPreti Flaherty Beliveau & Pachios1997 - Present


Association NamePosition NameDuration
American Bar AssociationSection of Antitrust LawN/A


Publication NameTitleDate
American Bar Association, Section of Antitrust Law, Spring Meeting"Antitrust Class Certification After Hydrogen Peroxide"2009


School NameMajorDegreeGraduated
Virginia, University ofLawJD - Juris Doctor1986
Harvard UniversityGovernmentN/A1982

Speaking Engagements

Conference NameTitleDate
Spring Meeting"Private Damages Actions: An International Perspective"2009