Biography

Matt Warner is an experienced regulatory, political and constitutional lawyer who focuses his practice on the intersection of law, politics and public policy. He’s in his comfort zone helping clients navigate difficult and high-profile issues including the direction of the country’s legal cannabis industry, efforts to ensure widespread ballot access and free elections, and the future of hydropower and Maine’s renewable energy resources.

Equally at home arguing constitutional law in a court of appeals or negotiating with top political leaders, Matt’s practice extends nationwide. He has helped clients in more than a dozen states with legal problems ranging from state agencies that improperly deny a license, to state laws that are unconstitutional, to sticky regulatory issues, and even contract disputes. Matt has also been recognized by Law360 as one of the country’s top lawyers in the field of cannabis, after pioneering a series of successful constitutional challenges to state marijuana laws. 

Matt also helps clients coordinate political campaigns to influence regulators and policymakers. Drawing on his broad experience as a speechwriter and on political campaigns, Matt enjoys working with clients on everything from messaging and communications to building coalitions and developing facts that can be used to move public opinion.

A native of Holden, Maine, Matt is an enthusiastic mountain biker and ice climber and regularly participates in ultra-endurance races. He lives in Cumberland with his two young sons, both of whom are already better climbers than he is.

Professional Activities

  • Maine State Bar Association
  • Adjunct Professor, University of Maine School of Law
  • Board of Directors, New England Mountain Bike Association - Southern Maine Chapter

Honors & Recognition

  • Recognized as a Super Lawyers New England Rising Star in the area of general litigation
  • Law360 MVP of the Year in Cannabis, 2021
  • Benchmark Litigation "40 & Under List," 2022-Present

Firm Highlights

News

Benchmark Litigation Names Preti Flaherty 2024 “Maine Firm of the Year"

Benchmark Litigation  has named Preti Flaherty as 2024 Litigation Firm of the Year in the State of Maine. Through extensive peer- and- client reviewed research, as well as analysis of casework; the Benchmark Awards...

Publication

Helping Employers Navigate the New Independent Contractor Rule and Compliance Challenges

On March 11 th , the United States Department of Labor’s (DOL) new Independent Contractor Rule goes into effect.  As your organization readies itself for compliance, it’s imperative to scrutinize your independent contractor classifications...

Publication

Important Updates to American Arbitration Association Construction Industry Rules and Mediation Procedures

The American Arbitration Association (AAA) updated its Construction Industry Rules and Mediation procedures (AAA Rules), effective March 1, 2024, marking the first update since 2015. The updates are important because the AAA Rules are...

Event

When to Say Goodbye: Navigating Leave and Terminations

As an HR professional, hiring the right talent, addressing employee needs, and managing terminations are just a few of the most challenging problems that arise. During this year's three-part Employment Breakfast Webinar Series, we'll...

Event

Building a Strong Discipline and Performance Management Framework

As an HR professional, hiring the right talent, addressing employee needs, and managing terminations are just a few of the most challenging problems that arise. During this year's three-part Employment Breakfast Webinar Series, we'll...

News

Preti Attorneys File Suit Against Al-Generated Robocalls in the 2024 NH Presidential Primary

Representing the League of Women Voters of New Hampshire, the League of Women Voters of the United States, and individual voters, Preti Flaherty, with co-counsel, filed a federal lawsuit against Steve Kramer, Lingo Telecom...

News

Attorney Jeffrey Thaler Named to 2024 Lawdragon Green 500: Leaders in Energy Law

Preti Flaherty’s attorney Jeffrey Thaler has been recognized by  Lawdragon  as one of the top 500 Leaders in Energy Law. This is Jeff’s third time named to this prestigious list since the first publication...

Publication

Failure to Follow Your Contract's Notice Requirements Can be Costly

In Kinetic Systems, Inc. v. IPS-Integrated Projects Services, LLC et. al., No.: 20-cv-1125 (D.N.H. February 6, 2024), the U.S. District Court for the District of New Hampshire granted summary judgment for a general contractor...

Publication

USCIS Announces H-1B Registration Period for FY2025: New “Beneficiary Centric” Registration Process and Increased Fees

USCIS has recently announced a series of changes that will impact the FY2025 H-1B registration system and cap filing season. H-1B Registration Period and Organizational Accounts As in prior years, under this process, prospective petitioners...

Event

Good Energy: Jazz, Cocktails, and Camaraderie

Preti Flaherty and Phelps Dunbar will be hosting an afterhours event: ‘Good Energy: Jazz, Cocktails, and Camaraderie’ at The Oceantic Network’s annual IPF Offshore Wind Conference. The event will be held on April 23...