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Clear blue skies and clean air over wind turbines in Lexington, MA, located just off the highway, representing the region’s commitment to renewable energy and environmental sustainability. Keegan Werlin LLP, based in Lexington, provides expert legal guidance in renewable energy projects, energy law, environmental compliance, and regulatory issues across New England. Our team assists clients in navigating the complex landscape of wind energy development, project siting, permitting, and environmental regulations. Photographer by Jessica Vultaggio, Concord Massachusetts, Portraits by Jessi.
Keegan Werlin LLP logo – A premier New England law firm based in Lexington, Massachusetts, dedicated to providing expert legal services across New England. Specializing in energy law, environmental law, public utility law, and governmental law, the firm offers comprehensive legal counsel to clients in industries such as energy facilities, infrastructure development, real estate, and regulatory compliance. With a deep understanding of both local and regional regulations, Keegan Werlin LLP is committed to delivering responsive, results-driven legal solutions to businesses and government agencies throughout Massachusetts and the broader New England region. Our attorneys bring unparalleled expertise in navigating complex legal challenges in rapidly evolving industries. Based in the heart of Lexington, MA, the firm provides a strategic advantage for clients working on real estate development, energy infrastructure, and environmental compliance projects.


Our Team

Practical advice from a knowledgeable legal team.

Cheryl M. Kimball; Boston Law Firm. Image by Portraits by Jessi Concord MA. Boston environmental Law, Downtown Boston MA law firms, law firm boston, lawyers in boston ma, real estate lawyers boston, real estate lawyers massachusetts, downtown boston law firms, Keegan Werlin LLP, energy law massachusetts, energy lawyers in boston, siting and permitting in Boston Massachusetts.

Cheryl M. Kimball

Managing Partner & Chair of Energy & Regulatory Practice

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David S. Rosenzweig

Executive Partner & Chair of Energy Facilities Siting & Permitting Practice

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Robert J. Keegan

Chairman Emeritus

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Molly K. Agostinelli

Associate

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Steven Frias

Associate

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Erika J. Hafner

Partner

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Elizabeth Jameson

Senior Counsel

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Michael J. Koehler

Partner

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Sarah Pardee

Associate

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Tiffany N. Tisler

Associate

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Cheryl A. Blaine

Partner

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Jonathan A. Goldberg

Senior Counsel

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Michael B. Hershberg

Associate

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Joseph F. Kelley

Associate

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Peter E. Madsen

Senior Associate

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Kevin F. Penders

Partner | Practice Manager

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Brendan P. Vaughan

Partner

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Barry P. Fogel

Partner

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John K. Habib

Partner

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Robert J. Humm

Partner

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Catherine J. Keuthen

Partner

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Ashley S. Marton

Associate

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Jessica Ralston

Partner

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Danielle Winter

Partner

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Practice Areas

Energy & Regulatory Law
Energy Facilities Siting & Permitting
Governmental & Legislative Relations 
Environmental, Municipal, & Land Use 
Real Estate Development & Permitting
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