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Standing photo of Employment Law attorney Peter Callaghan

Peter G. Callaghan,
Director
pcallaghan@preti.com

Concord, NH 603.410.1500
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Upcoming Event

2026 Maine Employment Law Summit
October 1, 2026
DoubleTree by Hilton
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Services

  • Litigation
  • Employment Law
  • Professional Liability
  • White Collar Defense & Government Investigations
  • Media Law

Admissions

  • New Hampshire
  • U.S. District Court, District of New Hampshire
  • U.S. Court of Appeals, First Circuit
  • U.S. Court of Appeals, Second Circuit

Education

  • Villanova University School of Law (J.D., 1989)
  • Villanova University (B.A., magna cum laude)
    • Phi Beta Kappa

Publications

December 14, 2022
President Biden Signs Speak Out Act
February 9, 2021
Answering Employer COVID-19 Vaccination Questions
April 3, 2020 Article
DOL Provides Guidance on Exemption from Paid Leave for Small Businesses
March 24, 2020 Article
Return to Work Protocol for Workers Following an Absence Due to COVID-19
March 18, 2020 Article
Alert: COVID-19 Update for ME and NH Employers
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Firm Highlights

Event

2026 Maine Employment Law Summit

Join us for Preti Flaherty's 2026 ME Employment Law Summit! Thursday, October 1, 2026 | DoubleTree by Hilton, South Portland For over 30 years, Preti Flaherty's Employment Law Summit has equipped Maine employers and...

News

10 Preti Flaherty Attorneys and 6 Practice Groups Recognized in Chambers USA 2026

Preti Flaherty is proud to announce that ten of our attorneys and six practice areas have been recognized in the 2026 edition of Chambers USA, reflecting the firm’s depth of talent across New England...

News

Preti Flaherty Attorneys Selected by Peers for Inclusion in Best Lawyers in America 2027, Including 2 “Lawyers of the Year” and 3 “Ones to Watch”

Thirty-two Preti Flaherty attorneys have been selected for inclusion in Best Lawyers in America 2027 , a distinction that highlights the firm’s ongoing commitment to professional excellence. Among the honorees are three attorneys named...

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