Environmental Law and Science, PLLC
AboutExperiencePractice FocusContact

About

Jeff Sepesi

Principal·Environmental Law and Science, PLLC

Environmental Law and Science, PLLC provides environmental law services informed by Jeff’s experience as in-house environmental counsel at a Fortune 100 diversified, multi-national conglomerate, practicing at Am Law 100 law firms, in solo practice and in environmental consulting. The firm provides strong client advocacy, coupled with collaborative problem solving and practical solutions.

Jeff Sepesi

The Practice

At its core, the practice of environmental law solves intertwining legal and scientific considerations. Effective representation requires not only understanding the environmental laws and regulations, but also their technical underpinnings. We provide this understanding. As a result, we effectively work and communicate with clients and their EHS staff, agency lawyers and technical staff, environmental consultants and experts.

Who We Work With

We work with businesses big and small, from startups to Fortune 100 companies. Clients have included manufacturers, technology companies, municipalities, resort hotels, commercial businesses, investors, financial institutions and property developers. In each situation we work to address each client’s specific environmental law needs.

We also team with law firms that require environmental law expertise in mergers and acquisitions, property transactions and clients facing environmental enforcement actions. The firm also provides environmental law expertise to general counsels at companies lacking dedicated in-house environmental attorneys.

How We Work

Over the years, we have addressed environmental law challenges from the courtroom to the board room, whether on factory floor or at hazardous waste sites. Whether in the conference room, on a Zoom call, before a judge or at a regulatory agency, we provide sophisticated, timely, practical and cost-effective environmental legal and regulatory representation and advice.

Jeff giving a talk at a conference

Continue Reading

  • Practice Focus↗

    The four areas of environmental law that define our work.

  • Experience↗

    Jeff’s professional background, education, and bar admissions.

  • Representative Experience↗

    Selected matters across compliance, sites, and transactions.

© 2026 Environmental Law and Science, PLLC. All rights reserved.