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Standing photo of Environmental attorney Kevin Osantowski

Kevin C. Osantowski,
Of Counsel
kosantowski@preti.com

Portland, ME 207.791.3000
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  • Biography
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Services

  • Environmental
  • Environmental Litigation
  • Land Use & Permitting
  • CERCLA Allocation & Mediation
  • Natural Resource Damages
  • Stormwater

Admissions

  • Maine
  • Massachusetts
  • Oregon

Education

  • Boston College Law School (J.D., 2016)
    • Environmental & Land Use Law Certificate
    • Administrative & Regulatory Skills Certificate
    • Environmental Law Society
  • University of Vermont, Rubenstein School of Environment and Natural Resources (B.S., 2012)
    • Fisheries Biology
    • Political Science, Minor
    • Alpha Zeta Agricultural and Natural Resource Honor Society
    • Order of Omega Honor Society

News

October 13, 2020
Preti Flaherty Adds Two to Environmental and Litigation Practice Groups More
  • Biography
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Firm Highlights

Press Coverage

NEFAC Legal Fund Supporting Public Records Lawsuit in Maine Murder Case

The New England First Amendment Coalition has announced support for a public records lawsuit seeking answers about whether a 2024 double homicide in Bath could have been prevented. The suit challenges extensive redactions in...

News

Jason Howe Recognized by MEREDA at 2026 Forecast Conference

Jason Howe has been honored by the Maine Real Estate and Development Association (MEREDA) at their 2026 Forecast Conference & Member Showcase, held on February 26, 2026 at the Holiday Inn By the Bay...

Publication

The Second Session of the 132nd Maine Legislature is a Wrap…Almost.

The Maine State Legislature almost completed their work on Tuesday, April 14th, around 10:30 pm. However, they did not adjourn Sine Die (without day), so they have not officially ended the Second Regular Session...

Publication

Maine Municipalities Scrutinizing Nonprofit Property Tax Exemptions

Recent news reports have noted that since early 2025, the City of Portland’s Tax Assessor’s Office has revoked the tax-exempt status of properties belonging to nearly twenty non-profit entities. In Maine, increased scrutiny of...

Event

Insurance, Bonds, and Indemnity in AIA Contracts

Mastering AIA Contracts: A Practical Webinar Series for Contractors and Construction Managers Join us for the final installment in our monthly 9-part webinar series focused on the most widely used contract family in the...

News

Benchmark Litigation Names Preti Flaherty 2026 “Maine Firm of the Year”

Benchmark Litigation has named Preti Flaherty as the 2026 Litigation Firm of the Year in Maine. The Benchmark Awards recognize the country’s most distinguished litigators through extensive peer and client-reviewed research and analysis of...

Publication

Whither Goest Offshore Wind Projects in the United States?

It’s 2007-- The American College of Environmental Lawyers is founded by 23 attorneys, including me. George W. Bush, Jr., is President. It’s 2008--I begin working on offshore wind development, and Barack Obama is elected...

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...

Press Coverage

New Documents Undermine Trump Administration's Claims About Offshore Wind Deal

New documents have revealed that the Trump administration paid TotalEnergies nearly $1 billion to cancel the company's offshore wind leases, with newly disclosed settlement terms raising questions about the deal's legitimacy. The settlement allowed...

Publication

Legislature Finally Adjourns Sine Die

On Wednesday, April 29, 2026, the Maine Legislature finally concluded the Second Regular Session of the 132nd Legislature, culminating in adjournment sine die.  The Legislature had returned to Augusta on Wednesday of this week...

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