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Practical advice from a knowledgeable and dedicated legal team. We take great pride in our ability to understand our client businesses, the environments in which they operate and their priorities for achieving success. We commit to client objectives at all stages of representation and know that, ultimately, there is no success without client success. If you would like to discuss a matter of interest, please contact us today. About Our Firm At Keegan Werlin LLP, we specialize in developing creative solutions to the complex challenges our clients encounter in their business environments. Keegan Werlin attorneys are industry leaders in energy and regulatory issues, project siting, licensing and permitting, environmental compliance and permitting, land use, government and legislative relations, municipal law and real estate. From start to finish, Keegan Werlin has unrivaled experience and knowledge of energy-related regulatory and policy matters and the project-development and permitting landscape. Experience & Expertise Keegan Werlin has a team of attorneys with unparalleled experience dealing with complex energy, real estate and regulatory issues. The firm combines its legal and regulatory expertise with a thorough understanding of the technical, strategic and financial challenges in emerging industries to provide successful and cost-effective representation of client interests. Learn More Practice Areas Energy & Regulatory Law Read more Energy Facilities Siting & Permitting Read more Real Estate Development & Permitting Read more Governmental & Legislative Relations Read more Environmental, Municipal & Land Use Read more Partnerships

Our Team Practical advice from a knowledgeable legal team. Cheryl M. Kimball Managing Partner & Chair of Energy & Regulatory Practice Read More David S. Rosenzweig Executive Partner & Chair of Energy Facilities Siting & Permitting Practice Read More Brian Golden Partner and Chair of Real Estate Development and Permitting Practice Read More Robert J. Keegan Chairman Emeritus Read More Molly K. Agostinelli Associate Read More Jonathan A. Goldberg Senior Counsel Read More Michael B. Hershberg Associate Read More Michael J. Koehler Partner Read More Kevin F. Penders Partner | Practice Manager Read More Brendan P. Vaughan Partner Read More Cheryl A. Blaine Partner Read More Kerri A. Gowaski Associate Read More Robert J. Humm Partner Read More Peter E. Madsen Senior Associate Coming Soon Jessica Ralston Partner Read More Daniel P. Venora Partner Read More Barry P. Fogel Partner Read More John K. Habib Partner Read More Joseph F. Kelley Coming soon Coming Soon Ashley S. Marton Associate Read More Anna Rendell-Baker Associate Read More Danielle Winter Partner Read More Steven Frias Associate Read More Erika J. Hafner Partner Read More Catherine J. Keuthen Partner Read More Sean P. Nehill Senior Counsel Read More Tiffany N. Tisler Associate Read More Practice Areas Energy & Regulatory Law Energy Facilities Siting & Permitting Governmental & Legislative Relations Environmental, Municipal, & Land Use Real Estate Development & Permitting Learn More

Diversity Committed to fostering, cultivating and preserving a culture of diversity and inclusion. Our Commitment Our commitment to diversity and inclusion is a significant principle in our firm’s culture. We strive to support organizations that have the same ideals as we do and we are honored to work with clients who further diversity, inclusion and antiracism at their institutions. Keegan Werlin LLP is committed to fostering, cultivating and preserving a culture of diversity and inclusion. Our human capital is the most valuable asset we have. The collective sum of the individual differences, life experiences, knowledge, inventiveness, innovation, self-expression, unique capabilities, and talent that our employees invest in their work represents a significant part of not only our culture but our reputation. We embrace our employees’ differences in age, color, ethnicity, family and marital status, gender identity or expression, language, national origin, physical and mental ability, political affiliation, race, religion, sexual orientation, socio-economic status, veteran status and other characteristics that make our employees unique. Diversity and Inclusion Action Committee Keegan Werlin LLP's Diversity and Inclusion Action Committee was created to further the firm's diversity and inclusion initiatives and assist in their strategy and planning as well as take concrete action within our community to bring about position change toward racial justice and equity for all people. We are committed to the furtherance of antiracism, defined as the creation and proactive reinforcement of policies, practices, attitudes and actions that produce equitable power, access, opportunities, treatment and outcomes for all. We believe that racial equity is achieved when no group experiences an advantage or disadvantage on basis of race or ethnicity. Diversity and Inclusion Action Programs and Involvement Keegan Werlin LLP is serious about furthering diversity, inclusiveness and antiracism within the firm, the legal profession, and the broader community. We believe that diversity and inclusion can, in part, be meaningfully fostered by action on the community level. To that point, we maintain and will continue to develop memberships with organizations that we have vetted and found to have the structure and leadership in place to advance diversity, inclusion and antiracism in the legal community, consistent with Keegan Werlin LLP’s beliefs. We also encourage engagement of our employees in the discussion and development of policies regarding recruitment, retention, and promotion of a diverse workforce at all levels of Keegan Werlin LLP. In keeping with our commitment to community involvement, as a firm, we have partnered with two external resources, Bottom Line of Massachusetts and Crossroads of Massachusetts, to work with and mentor students from primarily low-income and first-generation college-seeking backgrounds. We strongly support these partner organizations in their missions to foster high school and college students to succeed in their life visions and help them to define career goals. Keegan Werlin is actively involved at a personal level with career networking, micro-internships, interview prep, job shadows and mentoring students from these organizations. Keegan Werlin sponsors job shadowing programs with Boston Public Schools, has volunteered with the Essex County Habitat for Humanity, and attends a number of community programs such as Teen Challenge, College Bound Dorchester, the Inner City Scholarship Fund, Camp Courant, Pitching in for Kids, New England Women in Energy and the Environment and other groups. Keegan Werlin is also a member of the national Law Firm Antiracist Alliance (“LFAA”), a consortium of law firms with the shared vison to use our collective talents and resources to assist all people in our communities who can benefit from a more equal society. As stated in its charter, the purpose of the LFAA is “To leverage the resources of the private bar in partnership with legal services organizations to amplify the voices of communities and individuals oppressed by racism, to better use the law as a vehicle for change that benefits communities of color and to promote racial equity in the law.” Inclusion and Diversity Suppliers When choosing suppliers, we opt to utilize vendors who are champions of diversity whenever possible. Keegan Werlin LLP is proud to be a corporate partner with: Bottom Line helps first-generation students from low-income backgrounds get into college, graduate, and go far in life. Change a Life. Change Everything. At Crossroads, we believe that long-term empowerment programs plus consistent positive relationships are the keys to transforming youth who risk being defined by their past into young adults capable of defining their futures. Being antiracist requires work on many fronts. LFAA recognizes and embraces the role that law firms, particularly when acting collectively, can play to help bring about systemic change and racial equity in the law. LFAA’s goal is simple: racial equity. Facilitating pro bono work is the primary mechanism by which we pursue this goal. Our Attorneys Learn More

Unrivaled knowledge in regulatory matters. About Our Firm At Keegan Werlin LLP, we specialize in developing creative solutions to the complex challenges our clients encounter in their business environments. Keegan Werlin attorneys are industry leaders in matters regarding energy and regulatory issues, project siting, licensing and permitting, environmental compliance and permitting, land use, government and legislative relations, municipal law and real estate. From start to finish, Keegan Werlin has unrivaled experience and knowledge of energy-related regulatory and policy matters and the project-development and permitting landscape. Our goal is to provide clients with successful results through commitment to client objectives, expertise and responsiveness. We take pride in our ability to understand our client businesses, the environment in which they operate and their priorities for achieving success. We commit to client objectives at all stages of representation and know that there is no success without client success. If you would like to discuss a matter of interest, please contact us today.

Practice Areas Energy & Regulatory Law Keegan Werlin’s energy and regulatory team has unparalleled experience dealing with complex energy and regulatory issues. The firm combines regulatory expertise with a thorough understanding of the financial, policy and strategic issues emerging in client industries to provide cost-effective and successful representation of client interests. Members of the practice have extensive backgrounds in regulation and government, including former chairs and commissioners of the Massachusetts Department of Public Utilities, two former general counsels, as well as several former hearing officers. Other attorneys in the firm have worked as in-house counsel to large utility companies, as consumer advocates and as staff to members of the Massachusetts Legislature. The diversity of experience among Keegan Werlin attorneys enables high-quality service to a broad array of clients in the regulatory and energy fields. View More Energy Facilities Siting & Permitting Keegan Werlin's energy facility siting and permitting team has multi-faceted expertise and experience with the siting of critical energy infrastructure. The energy siting and permitting team has many years of experience and substantial knowledge of the engineering, planning, financial, economic, environmental and social justice dimensions of large-scale energy infrastructure projects. With this knowledge, Keegan Werlin is able to assist clients in achieving their objectives on a timely and cost-effective basis, with the best possible outcomes. View More Keegan Werlin's real estate development & permitting practice provides expert land use, planning and permitting services to support real estate developers, municipalities and other clients. Members of the practice have unparalleled experience in real estate, urban planning and permitting matters through public sector experience with the Boston Planning & Development Agency (BPDA) and the City of Boston. View More Real Estate Development & Permitting Governmental & Legislative Relations Keegan Werlin provides a wide range of advocacy services to clients for matters involving legislative and local, state and municipal forums. Our attorneys advise clients on Massachusetts laws that regulate business and industry; lobbying, ethics and campaign finance, government procurement and the promulgation of regulations. View More Environmental, Municipal, & Land Use Keegan Werlin provides clients with the highest quality legal representation and services in the area of environmental, municipal and land-use law. These practice areas provide valuable support to resolve challenges in energy infrastructure siting and real estate development and planning. In addition to corporations of all sizes, sole proprietorships and individuals, our clients include boards and departments of municipal corporations as they plan and construct critical infrastructure and public and private development projects. View More

Energy, Public Utilities, & Administrative Law; Telecommunications Robert J. Keegan is a founding partner of Keegan Werlin LLP. He is an industry leader in representing electric generators, developers of energy storage and delivery infrastructure, regulated and competitive retail energy providers and large energy users interested in exploring creative procurement strategies. Robert J. Keegan Boston Office Phone: 617-951-1400 Fax: 617-951-1354 Email: rkeegan@keeganwerlin.com ● Administrative Law ● Energy Law ● Public Utilities ● Telecommunications Bar Admissions Rhode Island U.S. Court of Appeals First Circuit U.S. District Court District of MA Massachusetts Mr. Keegan plays golf most days, always somewhere sunny. If not playing golf, Mr. Keegan is an avid reader of history and politics and is actively engaged with family, friends, and clients on a number of pressing matters. Mr. Keegan is always ready to go! He has advised clients on matters relating to a broad range of regulatory and administrative compliance matters including regulatory approval of mergers and acquisitions and utility rate plans, among other important issues of the day. He has represented clients in adjudicatory and rulemaking proceedings involving rate-setting, pipeline safety, service quality and industry-restructuring issues. Mr. Keegan has also successfully represented several clients in appeals from the administrative record before the Massachusetts Supreme Judicial Court. He knows a lot. Before founding the firm in 1988, Mr. Keegan was appointed by the Governor for two terms as a Commissioner at the Massachusetts Department of Public Utilities from 1983 to 1988. Prior to his appointment as Commissioner, Mr. Keegan was Deputy Regional Counsel at the United States Department of Energy, 1979 to 1982. He has also served as Special Assistant Attorney General, Massachusetts, 1990-1991; Consultant, Massachusetts Department of Public Utilities and Energy Law Institute, 1982-1983; Senior Trial Counsel, Massachusetts Department of Public Utilities, 1976-1979; and Trail Attorney, Massachusetts Defenders Committee, 1973-1975. Mr. Keegan is a proud double-eagle, 1970 vintage/Boston College and Boston College Law School Representative Cases NSTAR Electric Company v. Department of Public Utilities, 462 Mass. 381, 2011 Fitchburg Gas and Electric Light Company d/b/a Unitil, 460 Mass. 800, 2011 Southern Union company d/b/a New England Gas Company v. Department of Public Utilities, 458 Mass. 812, 2010 Published Works A Market-Based Approach to PURPA (Co-Author with Paul Levy) American Bar Association Natural Resources and Environment, (Spring, 1987) Institutional Obstacles to ISDN Development International Council for Computer Communications, (September, 1987) Competitive Bidding: The New England Experience Public Utilities Papers, (1987) Options for Modifying Rate Base Regulation (Co-Author with Paul Levy) Public Utilities Papers, (1986) Memberships & Associations Subcommittee, Relations with the Federal Energy Regulation Committee, National Association of Regulatory Utility Commissioners, 1987-1988 Member, Gas Committee, National Association of Regulatory Utility Commissioners,1985-1988 Member, Advisory Council, Gas Research Institute, 1985-1988 Education Boston College Law School, Boston, Massachusetts, J.D., 1973 Awards: Recipient, John F. Cremens Award, 1941 Student President, Boston College Legal Assistance Bureau, 1972-1973 Boston College, Chestnut Hill, Massachusetts, B.S. Finance, cum laude, 1968

Administrative & Energy Law; Public Utilities Anna Rendell-Baker joined Keegan Werlin as an associate in September of 2022. Anna Rendell-Baker Boston Office Phone: 617-951-1400 Fax: 617-951-1354 Email: arendell-baker@keeganwerlin.com ● Administrative Law ● Energy Law ● Public Utilities Bar Admissions Connecticut Rhode Island Ms. Rendell-Baker received her Juris Doctor from University of Connecticut School of Law. Following her first year of law school, she interned with the Connecticut Urban Legal Initiative, helping to provide legal aid to the local communities in Hartford County. During her second year, she interned with the Connecticut Department of Energy and Environmental Protection, primarily aiding the energy law attorneys in researching and attending rate cases. During her third year, she interned with Eversource primarily working with regulatory issues such as the transition to renewable energy and rate cases. She then interned for Day Pitney, assisting in research on EV policy and the transition from natural gas. Education Champlain College, Burlington, Vermont, B.S. May 2017 University of Connecticut School of Law, Hartford, Connecticut, J.D., May 2022

Public Utility, Energy, & Administrative Law; Telecommunication Steven Frias is an associate at Keegan Werlin LLP. He specializes in public utility, energy and regulatory, telecommunications, and administrative law. Steven Frias Boston Office Phone: 617-951-1400 Fax: 617-951-1354 Email: sfrias@keeganwerlin.com ● Administrative Law ● Energy Law ● Public Utilities ● Telecommunication Bar Admissions Massachusetts U.S. District Court District of RI Rhode Island Prior to joining the firm, Mr. Frias served as Senior Legal Counsel to the Rhode Island Public Utilities Commission for two years. He then served as Executive Counsel of the Rhode Island Public Utilities Commission and Legal Counsel to the Rhode Island Energy Facility Siting Board for six years. During his employment as Executive Counsel, he authored “Beyond 271 – From an Open Market to a Fully Competitive Market: A Roadmap for State Commissions,” for the NRRI Journal of Applied Regulation. Before entering public service, Mr. Frias served as an associate at Zizik, LaSalle & Power, P.C., specializing in litigation. Since 1999, Mr. Frias has taught Paralegals and the Litigation Team in Rhode Island, a seminar at the Institute for Paralegal Education. Memberships & Associations Rhode Island Bar Association R.I. Representative and Member of the RNC Budget Committee, Republican National Committee Board Member, Cranston Historical Society 2009 - 2017 Contributing Opinion Columnist, Cranston Herald 2012 - 2013, 2019 - Present Contributing Opinion Columnist, Providence Journal 2013 - 2016 Commissioner, Cranston City Planning Commission, 2021 - Present Treasurer, R.I. Semiquincentennial (250th) Commission, 2021 - Present Chairman, Cranston Charter Review Commission, 2019 - 2020 Published Works Cranston and Its Mayors: A History, The History Press, Charleston SC, 2011 Beyond 271 - From an Open Market to a Fully Competitive Market, NRRI Journal of Applied Regulation, 1, 2003 Flagrant Disregard for Tradition, Suffolk University Law Review, 30, 1997 Education Suffolk University Law School, Boston, Massachusetts, , J.D., cum laude, 1997 Law Review: Suffolk University Law Review, 1996 - 1997 Awards: Dean’s List 1995-97; Best Case Comment, Law Review Staff Competition, 1996; Semi-Finalist, Clark Appellate Advocacy Competition, 1996; Best Brief Writer, First Year Moot Court Section Competition 1995; Best Oral Advocate, First Year Moot Court Section Competition, 1995 Brown University, Providence, RI, B.A. Political Science and International Relations, 1993 Representative Cases NSTAR Electric Company, D.P.U. 17-05 NSTAR Gas Company, D.P.U. 19-120 NSTAR Gas Company, D.P.U. 20-76 Brookline, Case No. 9752 Classes & Seminars Paralegals and the Litigation Team in Rhode Island, Institute for Paralegal Education, 1999 - Present Recognitions Coolidge Prize for Journalism, 2015

Public Utilities, Energy Law; Regulatory & Administrative Molly Karg Agostinelli is an associate attorney at Keegan Werlin LLP, specializing in energy, regulatory, and public utility law. Molly K. Agostinelli Boston Office Phone: 617-951-1400 Fax: 617-951-1354 Email: magostinelli@keeganwerlin.com ● Regulatory & Administrative Law ● Energy Law ● Public Utilities Bar Admissions Massachusetts Ms. Agostinelli’s experience at the firm focuses on ratemaking and storm recovery work in Massachusetts. While attending law school, Ms. Agostinelli interned with the MA Department of Public Utilities. Prior to joining the firm in May 2023, Ms. Agostinelli worked as senior associate with the Mergers & Acquisitions department at KPMG LLP in Boston. Prior to Law school, Ms. Agostinelli served as regulatory coordinator at a financial consulting firm serving regulated natural gas, electric, and water utilities in performing return on equity testimony for ratemaking purposes and energy market assessment before the MA DPU, FERC, and other US/Canadian utility regulatory agencies. Education B.A. 2014, Boston University J.D. 2020, Boston College Law School

Energy Law & Public Utilities Ashley S. (Wagner) Marton is an associate in Keegan Werlin LLP’s energy & regulatory practice, specializing in energy and public utility law. Ashley S. Marton Boston Office Phone: 617-951-1400 Fax: 617-951-1354 Email: amarton@keeganwerlin.com ● Energy Law ● Public Utilities Bar Admissions Massachusetts Ms. Marton received her Juris Doctor from Boston University School of Law. After completing her first year of law school, Ms. Marton worked at the Irish International Immigrant Center in Boston, Massachusetts. While attending law school, Ms. Marton worked as a law clerk for Keegan Werlin. Ms. Marton served as Articles Editor for the International Law Journal at Boston University School of Law. Ms. Marton’s note, The Failure of Corporate Social Responsibility Provisions within International Trade Agreements and Export Credit Agencies as a Solution, 35 B.U. INT’L L.J. (2017), was published by the International Law Journal. Ms. Marton received her Bachelor of Arts in International Studies and Latin American Studies from the University of San Francisco. Education University of San Francisco, San Francisco, California, B.A., 2013 Boston University School of Law, Boston, Massachusetts, J.D., 2017

Energy, Contract, Regulatory, & Administrative Law David S. Rosenzweig is Executive Partner at Keegan Werlin LLP and Chair of the Firm’s Energy Siting & Permitting Practice, representing clients before state regulatory agencies, local permitting authorities and the Massachusetts courts. He advises a wide array of electric and gas companies, energy project developers and end users on issues concerning the siting, permitting and licensing of energy facilities, rates, planning, energy procurement and transmission arrangements. David S. Rosenzweig Boston Office Phone: 617-951-1400 Fax: 617-951-1354 Email: drosen@keeganwerlin.com ● Administrative Law ● Energy Law ● Regulatory Law ● Contract Law Bar Admissions U.S. Court of Appeals D.C. Circuit U.S. Court of Appeals First Circuit U.S. District Court District of MA U.S. Supreme Court Massachusetts New Hampshire Mr. Rosenzweig’s siting expertise includes: electric transmission lines (underground, aboveground and underwater); natural gas, oil and coal-fired electric generating facilities; interstate and intrastate natural gas pipelines; natural gas storage facilities; and solar, wind and battery storage renewable energy facilities. He represented the region's first large-scale, offshore wind power project in obtaining its state and local permits, licenses and siting approvals for energy infrastructure facilities from the Energy Facilities Siting Board, the Executive Office of Environmental Affairs pursuant to the Massachusetts Environmental Policy Act, the Department of Environmental Protection and various other state and local agencies, boards and governmental authorities. He has also represented utility companies and project developers in judicial proceedings in state and federal courts, including the Massachusetts Supreme Judicial Court, regarding challenges to permits and approvals initiated by project opponents. Mr. Rosenzweig has also represented the region's electric and natural gas distribution companies on all regulatory matters before the Massachusetts Department of Public Utilities. He has negotiated electric and gas supply agreements for large institutional energy users and power sale agreements for wholesale electric generators. He has advised clients in restructurings, buydowns and buyouts of power sale agreements between competitive wholesale generators and electric distribution companies. In addition, he has counseled clients on transmission, power delivery and project interconnection issues concerning the New England Power Pool and the New England Independent System Operator. Mr. Rosenzweig has also performed regulatory and permitting due diligence reviews for asset acquisitions of natural gas, oil and coal-fired electric generating facilities. Before joining the firm in 1990, Mr. Rosenzweig worked at Boston Edison Company for seven years in a variety of legal, financial, rate and planning areas. Education Suffolk University Law School, Boston, Massachusetts, J.D., cum laude, 1988 Rensselaer Polytechnic Institute, Troy, New York, M.B.A., 1982 Rensselaer Polytechnic Institute, Troy, New York, B.S. Management, 1981 Recognitions "The Best Lawyers In America" 2007 - 2022 Associations Boston Bar Association Massachusetts Bar Association

Energy, Environmental, Administrative, Municipal; Land Use & Zoning Cheryl A. Blaine is a partner at Keegan Werlin LLP and has been a member of the Firm’s Energy Facilities Siting & Permitting Practice and the Environmental, Municipal and Land Use Practice since 1997. Cheryl A. Blaine Boston Office Phone: 617-951-1400 Fax: 617-951-1354 Email: cblaine@keeganwerlin.com ● Environmental Law ● Energy Law ● Administrative Law ● Land Use & Zoning ● Municipal Law Bar Admissions Massachusetts U.S. District Court District of MA Ms. Blaine’s practice includes representation of energy and utility clients before the Department of Public Utilities and the Energy Facilities Siting Board in permitting energy facilities including natural gas generating and peaking facilities, renewable energy projects, natural gas pipelines, electric transmission lines, substations, and ancillary equipment. She also has assisted individuals, corporations and municipalities in project development and has significant experience in land use and environmental permitting, real estate transactions involving contaminated properties, and litigation, adjudication, negotiation, enforcement, and defense involving environmental and land use issues. Ms. Blaine received her Juris Doctor, cum laude, from Suffolk University Law School in 1993 and completed her Bachelor of Science degree from Northeastern University in 1981. Before attending law school, Ms. Blaine was an analytical chemist and environmental consultant providing technical and quality-control/quality-assurance support to the United States Environmental Protection Agency in connection with New England Superfund Sites. Ms. Blaine is admitted to practice before the bars of Massachusetts and the United States District Court. She is a member of the Massachusetts Bar Association's Property Law and Public Law sections, the Real Estate Bar Association and the Women's Bar Association. Ms. Blaine has co-authored the following articles: “Alteration of Nonconforming Structures and Uses Under the Zoning Act: Is there a Difference Between Lawful and Unlawful?” co-author with Barry P. Fogel and H. Theodore Cohen, Massachusetts Bar Association Section Review, summer 2002. “Standing in Wetland Appeals: How Recent Developments Alter the Right to Challenge State and Local Decisions” co-author with Barry P. Fogel, Massachusetts Bar Association Section Review, fall 2005. Memberships and Associations Massachusetts Bar Association Massachusetts Real Estate Bar Association Massachusetts Women's Bar Association Education Suffolk University Law School, Boston, Massachusetts, J.D., cum laude, 1993 Northeastern University, Boston, Massachusetts, B.S. Biology, 1981