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Keegan Werlin LLP is a premier greater Boston-based law firm now headquartered in historic Lexington, Massachusetts. Specializing in energy, environmental, and public utility law, we serve clients across Boston and throughout New England with trusted legal counsel on complex regulatory matters. 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 Governmental & Legislative Relations Read more Energy Facilities Siting & Permitting Read more Environmental, Municipal & Land Use Read more Partnerships

During his tenure as General Counsel and manager of the DPU's legal division, the DPU issued over 1,500 orders on energy related matters, including complex rate designs, performance-based rate plans, mergers and acquisitions, as well as initiatives to encourage grid modernization for the electric industry, including solar, energy storage and electric vehicle charging infrastructure, initiatives to encourage development of networked geothermal systems, and initiatives Public Utility, Energy, & Administrative Law; Government Relations As the recent former General Counsel to the Massachusetts Department of Public Utilities (DPU), Mr. Goldberg served as the chief legal and policy advisor for regulating the Commonwealth's invested-owned electric distribution, natural gas, water and steam companies, and oversight of rail transit safety for rail crossings and regional transportation entities, such as the Massachusetts Bay Transportation Authority, as well as transportation network companies and other common carriers, including buses, movers, and towing companies. Jonathan A. Goldberg Phone: 617-951-1400 Email: jgoldberg@keeganwerlin.com ● Energy Law ● Public Utilities ● Administrative Law ● Government Relations Bar Admissions Massachusetts During his tenure as General Counsel and manager of the DPU's legal division, the DPU issued over 1,500 orders on energy related matters, including complex rate designs, performance-based rate plans, mergers and acquisitions, as well as initiatives to encourage grid modernization for the electric industry, including solar, energy storage and electric vehicle charging infrastructure, initiatives to encourage development of networked geothermal systems, and initiatives to encourage energy optimization through energy efficiency, electrification, and demand response programs. Mr. Goldberg worked with the DPU's Commission to develop innovative capital investment cost recovery frameworks to mitigate barriers to distributed renewable energy development, to integrate environmental justice principles into the DPU's procedural and decision-making processes, and to initiate the process to reform the Commonwealth's approach to regulating natural gas distribution companies while the Commonwealth pursues lower greenhouse gas emissions. Mr. Goldberg provides clients an in-depth knowledge regarding the regulation of electric, natural gas and water distribution companies. Prior to joining the firm in 2023 and his tenure as General Counsel at DPU, Mr. Goldberg was an attorney in the Energy Practice Group at Rich May, P.C. from 2015 through 2020. Mr. Goldberg previously served as a hearing officer at the DPU and counsel for the House Committee on Global Warming and Climate Change. Education Baylor Law School, Waco, Texas, J.D., 2009 Northeastern University, Boston, Massachusetts, B.S. Criminal Justice, 2006

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. 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 Phone: 617-951-1400 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 Trial 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

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. 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 Phone: 617-951-1400 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

Joseph Kelley received his Juris Doctor from the University of Massachusetts School of Law. Following his second year of law school, he worked at Keegan Werlin as a Law Clerk helping on numerous matters, primarily aiding with monitoring hearings conducted by the Joint Committee on Telecommunications, Utilities and Energy. During his third year of law school, he interned at Pateakos & Poulin, where he assisted with civil litigation, real estate transactions, and estate planning. Administrative & Energy Law; Public Utilities Joseph F. Kelley joined the practice in September of 2024 as an associate attorney, specializing in administrative, energy, and public utility law. Joseph F. Kelley Phone: 617-951-1400 Email: jkelley @keeganwerlin.com ● Administrative Law ● Energy Law ● Public Utilities Bar Admissions Massachusetts Joseph Kelley received his Juris Doctor from the University of Massachusetts School of Law. Following his second year of law school, he worked at Keegan Werlin as a Law Clerk helping on numerous matters, primarily aiding with monitoring hearings conducted by the Joint Committee on Telecommunications, Utilities and Energy. During his third year of law school, he interned at Pateakos & Poulin, where he assisted with civil litigation, real estate transactions, and estate planning. Education Worcester State University, B.A., May 2020 University of Massachusetts School of Law, J.D., 2024

Representative matters have involved rate issues, long-term power purchase agreements for renewable energy, net metering and the siting and permitting of an array of different energy infrastructure facilities, including natural gas generating facilities, renewable energy projects, natural gas pipelines, electric transmission lines, substations and ancillary equipment. Energy, Environmental, & Administrative Law Michael J. Koehler is a Partner at Keegan Werlin LLP specializing in energy & regulatory, public utility and environmental, municipal and land use law. He represents energy and utility clients before administrative agencies such as the Department of Public Utilities, the Energy Facilities Siting Board and the Cape Cod Commission, as well as various local authorities. Michael J. Koehler Phone: 617-951-1400 Email: mkoehler@keeganwerlin.com ● Administrative Law ● Energy Law ● Environmental Law Bar Admissions U.S. Court of Appeals D.C. Circuit U.S. District Court District of MA U.S. Court of Appeals First Circuit U.S. Supreme Court Massachusetts New Hampshire Mr. Koehler's representative matters have involved rate issues, long-term power purchase agreements for renewable energy, net metering and the siting and permitting of an array of different energy infrastructure facilities, including natural gas generating facilities, renewable energy projects, natural gas pipelines, electric transmission lines, substations and ancillary equipment. Mr. Koehler has also represented project developers in judicial proceedings in state and federal courts regarding challenges to permits and approvals initiated by project opponents. Before joining the firm in 2008, Mr. Koehler served as a law clerk for the Justices of the Superior Court of Massachusetts. Mr. Koehler is admitted to practice in Massachusetts and is an active member of the Boston Bar Association, where he has served as co-chair of the Energy and Telecommunications committee; a member of the BBA’s Environmental Sustainability Task Force; a member of the Education Committee; and a fellow of the BBA’s Public Interest Leadership Program. Mr. Koehler received his Juris Doctor from Suffolk University Law School, cum laude, and his Masters in Public Administration from the Sawyer School of Management. At Suffolk, Mr. Koehler served as the Managing Editor of the Suffolk Journal of Trial and Appellate Advocacy. He also received a Rappaport Fellowship in Law and Public Policy that enabled him to work for the City of Boston’s Environmental and Energy Services Cabinet. Prior to law school, Mr. Koehler received his Bachelor of Arts degree in Geography and Environmental Studies from Middlebury College. In addition to his professional pursuits, Mr. Koehler serves in various capacities as an alumni volunteer for Phillips Academy (Andover). He also serves on the Board of Directors for the Reading United Soccer Club and the Reading Open Land Trust. Education Suffolk University Law School, Boston, Massachusetts, J.D./MPA, cum laude, 2007 Middlebury College, B.A. Geography and Environmental Studies, 1999 Awards: Dean's List; Public Service/Leadership Award 2022 Massachusetts Super Lawyers Massachusetts Super Lawyers: Rising Star, 2015 Memberships & Associations Boston Bar Association Northeast Energy and Commerce Association Environmental Business Council – New England Recognitions

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. 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 Phone: 617-951-1400 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

Keegan Werlin LLP offers clients top-tier legal representation in environmental, municipal, and land use law. With a deep understanding of regulatory programs, our attorneys bring extensive experience from both government and private practice. Based in Lexington, MA, we assist clients throughout New England with compliance, permitting, and navigating complex environmental regulations. Our team provides strategic guidance to ensure successful outcomes for a wide range of environmental matters. Environmental, Municipal, & Land Use Overview Keegan Werlin provides clients with the highest quality legal representation and services in the area of environmental, municipal and land use law. The strength of the firm’s practice in these areas is drawn from the extensive experience that our attorneys have with a broad scope of regulatory programs in both government and private practice. 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 major public infrastructure projects. Regulatory Permitting and Land Use Our regulatory permitting and land use practice focuses on regulatory permitting for the construction and operation of a wide array of projects. Keegan Werlin works closely with clients and their technical consultants to obtain timely permit approvals from federal, state and local agencies for electric transmission facilities; natural gas pipelines and storage facilities; water and sewer projects; solid waste management facilities; industrial, manufacturing and commercial facilities; and hotel and residential projects of all sizes. Our attorneys are among the region’s leading authorities on regulations and policies currently being used in Massachusetts to implement permit-related programs such as the National Environmental Policy Act and the Massachusetts Environmental Policy Act; the Clean Air Act (state and federal); the Solid Waste Management Act; the Clean Water Act; the Wetlands Protection Act; and the Rivers Protection Act. The firm also guides clients through land use permitting at the local level including zoning, site plan review, subdivision planning and approval, and compliance with public health and wetlands performance standards. As special municipal counsel, we have worked closely with the departments of several cities and towns to obtain necessary permits and approvals for large-scale projects such as landfill closures and post-closure development projects; water and sewer projects; and electric generating facility projects.

Ms. Ralston’s representation of utilities includes advocacy on issues related to energy supply, system reliability, and renewable energy. She has rejoined the firm after spending two years as regulatory counsel for Pacific Power where she represented the company before the utility commissions in California, Oregon and Washington on matters related to resource planning and procurement. Administrative, Energy, & Regulatory Law Jessica (Buno) Ralston is a partner at Keegan Werlin LLP, specializing in energy, regulatory and public utility law. Jessica (Buno) Ralston Phone: 617-951-1400 Email: jralston@keeganwerlin.com ● Administrative Law ● Energy Law ● Regulatory Law Bar Admissions Illinois New York Massachusetts Rhode Island New Hampshire Oregon Ms. Ralston’s representation of utilities includes advocacy on issues related to energy supply, system reliability, and renewable energy. She has rejoined the firm after spending two years as regulatory counsel for Pacific Power where she represented the company before the utility commissions in California, Oregon and Washington on matters related to resource planning and procurement. Prior to joining the Keegan Werlin in 2012, Ms. Ralston was a Hearing Officer at the Massachusetts Department of Public Utilities overseeing proceedings related to natural gas and renewable energy contracts. Previously, she was an associate at the Steinverzel & Levy Law Group P.C. in White Plains, New York where she practiced environmental law, construction law, and litigation. Ms. Ralston received her Juris Doctor from the Elisabeth Haub School of Law at Pace University with a Certificate in Environmental Law. While in law school, Ms. Ralston interned with the U.S. Environmental Protection Agency and New York State Department of Environmental Conservation. Prior to law school, Ms. Ralston received her Bachelor of Arts degree in Environmental Studies and Psychology from Wellesley College. Ms. Ralston is a co-author of Municipalities and Natural Gas Extraction... What the Frack?, New York Law Journal (2012). Education Pace University School of Law, White Plains, New York, J.D.,2008, Certificate in Environmental Law Wellesley College, Wellesley, MA, B.A. Environmental Studies and Psychology, 2005 Memberships Boston Bar Association

Erika J. Hafner is a partner at Keegan Werlin LLP. Ms. Hafner concentrates in the areas of energy and regulatory, administrative, and environmental, municipal and land use law. Energy, Environmental & Administrative Law Erika J. Hafner is a partner at Keegan Werlin LLP. Ms. Hafner concentrates in the areas of energy and regulatory, administrative, and environmental, municipal and land use law. She has represented energy and utility clients before the Department of Public Utilities in cases involving service territory disputes, franchise rights, rate issues, energy efficiency programs, zoning exemptions and other regulatory matters. Erika J. Hafner Phone: 617-951-1400 Email: ehafner@keeganwerlin.com ● Energy Law ● Administrative Law ● Environmental Law Bar Admissions Massachusetts Ms. Hafner's practice before the Energy Facilities Siting Board has included an array of different energy facilities, including renewable energy projects, battery energy storage systems, natural gas pipelines, regulator stations, electric transmission lines, substations and switching stations, as well as natural gas generating and peaking facilities. She has also represented the region's first large-scale, off-shore wind power project in obtaining its state and local permits. Before joining the firm in 2001, Ms. Hafner worked at the Massachusetts Office of Dispute Resolution and interned at the Government Bureau in the Office of the Attorney General of Massachusetts. Prior to receiving her Juris Doctor from Boston College Law School, where she was a member of the Boston College Environmental Affairs Law Review, Ms. Hafner completed her Bachelor of Arts degree in Government, magna cum laude, from Bowdoin College. Ms. Hafner is admitted to practice before the bars of Massachusetts, the United States District Court and the First Circuit Court of Appeals. She is also a member of the American, Massachusetts and Boston Bar Associations. Education Boston College Law School, Newton, Massachusetts J.D. Law Review: Boston College Environmental Affairs Law Review, 1998 - 2000 Bowdoin College, Brunswick, ME, A.B. Government and Legal Studies, Magna Cum Laude Honors: With Honors Associations Boston Bar Association Massachusetts Bar Association