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David B. Van Slyke,
Senior Counsel; Chair, Environmental Practice Group

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  • Biography
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News

August 17, 2015
21 Attorneys Selected by Peers for Inclusion in The Best Lawyers in America® 2016 More
May 28, 2015
Twelve Preti Flaherty Attorneys Selected as Chambers USA Leaders in their Field More
October 28, 2014
David Van Slyke Elected President of Maine Adaptive Sports & Recreation Board of Directors More
October 27, 2014
10 Preti Flaherty Attorneys Recognized by New England Super Lawyers More
August 22, 2014
21 Preti Flaherty Attorneys Named to Best Lawyers 2015 More
May 23, 2014
Fourteen Preti Flaherty Attorneys Selected as Chambers USA Leaders in their Field More
February 17, 2014
Thirteen Preti Flaherty Attorneys Selected as Chambers USA Leaders in Their Field More
November 1, 2013
8 Preti Flaherty Attorneys Recognized by New England Super Lawyers More
September 3, 2013
Preti Flaherty Attorney Named Best Lawyers' 2014 Lawyer of the Year More
August 28, 2013
20 Preti Flaherty Attorneys Selected for Inclusion in Best Lawyers 2014 More
May 29, 2013
Preti Flaherty Earns Top Rankings by Chambers USA More
May 2, 2013
David Van Slyke Appointed by Governor LePage to NEIWPCC More
October 2, 2012
Three Preti Attorneys Named "Lawyers of the Year" by Best Lawyers 2013 More
September 18, 2009
Preti Flaherty Creates Climate Strategy Group to Assist Clients with Climate Change Initiatives More
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Firm Highlights

Press Coverage

Lawsuit Against Bath Police Department Goes to Legal Arguments

Alex Harriman represented Maine's Total Coverage and The Times Record in Sagadahoc County Superior Court in a Freedom of Access Act lawsuit against the Bath Police Department. The suit alleges the department violated Maine's...

Publication

New Maine Pay Transparency Requirements and Clarification on Substance Use Testing Law Coming July 29

Effective July 29, Maine employers with 10 or more employees are subject to new pay transparency requirements for job postings. Employers with a Maine Department of Labor-approved substance testing policy also must comply with...

Publication

SJC Reverses Lower Court | Upholds Arbitrator's Award in Prompt Pay Dispute - Cannistraro v. Columbia

Earlier today, the Massachusetts Supreme Judicial Court issued an important decision for the construction industry: J.C. Cannistraro, LLC v. Columbia Construction Co., SJC-13819 (June 26, 2026) . The ruling significantly reinforces the finality of...

Publication

Maine Employers are Subject to Heightened Compliance Scrutiny and New Workplace Surveillance Rules Starting July 14

As we enter the dog days of summer, Maine employers face important compliance deadlines, with new statutory obligations taking effect throughout July 2026. As of July 14 , the Maine Department of Labor will...

News

Preti Flaherty Attorneys Selected for Inclusion in 2026 Super Lawyers

Fifteen Preti Flaherty attorneys have been selected for recognition by Super Lawyers , including 8 Rising Stars. Super Lawyers recognizes outstanding attorneys across firms of all sizes and more than 70 practice areas nationwide...

News

Jeffrey Thaler Named to the 2026 Lawdragon 500 Global Leaders in Energy

Preti Flaherty is pleased to announce that Jeffrey Thaler has been recognized in the 2026 Lawdragon 500 Global Leaders in Energy. This distinction reflects Jeff's continued leadership and influence in energy and environmental law...

Press Coverage

Sig Schutz Joins Maine Rule of Law Panel Discussion on Freedom of the Press

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...

Publication

Results of Maine's Ranked Choice Races

Five elections in Maine were decided through the ranked choice voting process - both the Republican and Democratic Gubernatorial races, the Democratic Second Congressional District race, the Republican State Senate District 4 race, and...

Press Coverage

Experts criticize ‘excessive’ redactions in state report on fatal house fire

Government transparency advocates are raising concerns about extensive redactions in a state report related to a fatal 2025 house fire on Bailey Island, with Sigmund D. Schutz of Preti Flaherty criticizing the redactions as...

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