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Biography

Lew is the director of Sullivan's Corporate Department in Boston. He is also a member of the firm's Management Committee.

Lew's practice is focused on a number of transactional areas. He regularly represents public and private companies in equity and debt financings, joint ventures, domestic and international mergers and acquisitions, and general corporate matters. Lew also represents financial institutions in secured and unsecured credit facilities. His clients consist of major financial institutions, private equity groups, family-owned businesses, family offices and other investors, as well as emerging and established companies engaged in a variety of industries, including consulting, renewable energy, advertising, health care, communications, manufacturing and software.

Lew is the author of Mergers & Acquisitions: A Step-by-Step Legal and Practical Guide (2nd edition) (Wiley), which he co-authored with Edwin L. Miller, Jr.

Education
  • Northeastern University School of Law (J.D.)
  • Syracuse University (B.S.)
Bar & Court Admissions
  • Massachusetts
Professional Qualifications
  • American and Boston Bar Associations
  • Board of Directors, Association for Corporate Growth (ACG)
Awards & Honors
  • Best Lawyers in America® (2023-2026)
  • Best Lawyers' Mergers and Acquisitions Law Lawyer of the Year (2026)
  • Boston Magazine Top Lawyers, Corporate Law (2023-2025)
  • Boston Magazine Top Lawyers, Corporate Counsel (2021, 2022)
  • Recognized as a Leading Partner by The Legal 500 U.S. (2025-2026)
  • Recognized as a Leading Lawyer by The Legal 500 U.S. (2019-2021, 2024)
  • Recommended by The Legal 500 U.S. (2014-2026)
  • "New Leader," Banker & Tradesman (2009)
  • "Rising Star," Massachusetts Super Lawyers (2007-2010)
Community Engagement
  • Board of Directors, Greater Boston Chamber of Commerce
  • Former Alternative Energy Committee Chair, Town of Duxbury, Massachusetts
  • Former Board of Directors, College Bound Dorchester
Top Tier Firm, Legal 500 United States 2026
Sullivan & Worcester Ranked in the Legal 500 United States 2026 Edition
Boston, MA – Sullivan & Worcester announced that its practice groups and attorneys have been ranked and recommended in the Legal 500 United States 2026. The firm’s Real Estate practice was newly ranked Tier 1 in the “Real estate – mid-market ($0-500m)” category and the firm maintained rankings across a variety of practice areas. Partners Nicole Crum and John Steiner were newly ranked as Leading Partners and Ryan Rosenblatt as a Next Generation Partner. Peers and more than 300,000 corporate counsel were surveyed and interviewed globally in the past 12 months to assess law firms’ overall visibility and reputation, culminating in detailed rankings and editorial. The Legal 500 is an independent guide, and firms and individuals are recommended purely on merit. Sullivan's lawyers received the following rankings: Leading Partners: The Legal 500’s Guide to Outstanding Lawyers Nationwide Benjamin Armour - M&A: Middle-Market (Sub-$500m); M&A: middle-market ($0-250m) Ameek Ashok Ponda - Real Estate Investment Trusts (REITs)  Nicole Crum - Mutual/registered/exchange-traded funds Lewis Segall - M&A: Middle-Market (Sub-$500m); M&A: middle-market ($0-250m) John Steiner - Real estate – mid-market ($0-500m) Douglas Stransky - International Tax Joel Telpner - Fintech Next Generation Partners: The Legal 500’s Guide to Up-and-Coming Lawyers Nationwide Ryan Rosenblatt - General commercial disputes – mid-market ($250-500m) Sarah Wellings - Real Estate Investment Trusts (REITs) Practice Areas Ranked and Attorneys Recognized Corporate Governance “Our lead partner, Nicole Crum, who leads the investment industry practice, is exceptional. She demonstrates strong industry knowledge yet is very personable and anticipates what we need to know or what we should consider doing to handle any matter. The team roll up their sleeves and provide recommendations as to how we as a board should handle any matter. Strong service commitment and work ethic!” “The team we have at Sullivan & Worcester has served our company for years and knows the management team, staff as well as our board members. They are extremely responsive and proactive and anticipate what we should be aware of, concerned about, excited about, and how to handle oversight, processes and protocols to ensure we are carrying out our fiduciary duties. The partners are experts in this industry.” Leading Partner: Nicole Crum Recommended Lawyers: Howard Berkenblit, David Leahy Dispute Resolution/General Commercial Disputes “Diverse skillset. Client centric. Transparency. Urgency provided on all matters.” “I have worked with Gerry Silver for over 15 years and have found his pragmatic approach to complex matters refreshing. He understands our business, culture and market, and will give me his opinion in a digestible manner.” Next Generation Partner: Ryan Rosenblatt Recommended Lawyers: Gerry Silver, Patrick Dinardo, Laura Steinberg, Michael Sullivan, Amy Zuccarello, Erika Todd, Christopher Shields, Anna Lea McNerney Employee Benefits, Executive Compensation and Retirement Plans: Design “The level of expertise is top shelf. David Guadagnoli seems to know all of ERISA and IRS rulings.” “David Guadagnoli and Amy Sheridan both have superior knowledge in their respective areas. I value the ability to raise issues whether simple or complex. The firm takes the same diligent approach across all spectrums of complexity.” Recommended Lawyers: David Guadagnoli, Amy Sheridan Environment: Transactional Fintech “Sullivan & Worcester is one of the finest firms with which I have worked.” “The lawyers are excellent, and the firm consistently provides the highest quality of customer service.” Leading Partner: Joel Telpner Recommended Lawyers: Natalie Lederman, Benjamin Armour, Scott Kaufman, Harvey Bines, Christopher Curtis Land Use/Zoning Recommended Lawyers: Gregory Sampson, Ashley Brooks, Victor Baltera, Karen Kepler, Ashley Tan M&A: Corporate and Commercial: Venture Capital and Emerging Companies Recommended Lawyers: Scott Kaufman, Lewis Segall, Benjamin Armour, Michael Student M&A: Middle-Market ($0-250m) “The partner Lewis Segall has been working with our company for 15 years and we have a good working relationship with him. He knows our history and very attentive to our needs.” “Lewis Segall is very attentive to our needs. We very much value him.” Leading Partners: Benjamin Armour, Lewis Segall Recommended Lawyers: Natalie Lederman Mutual/Registered/Exchange-Traded Funds “Sullivan & Worcester's practice is defined by its deep expertise in investment funds and its ability to deliver clear, commercially grounded advice across the full fund lifecycle—from formation and structuring to regulatory compliance and complex transactions.” “The team is highly experienced, collaborative, and excel in efficient execution and clear communication.” Leading Partner: Nicole Crum Recommended Lawyers: David Leahy, David Mahaffey, Rachael Schwartz Real Estate Leading Partner: John Steiner Recommended Lawyers: Ashley Brooks, Karen Kepler, Gregory Sampson, Sharon Leifer, Louis Monti, Spencer Stone, Ashley Tan Real Estate Investment Trusts (REITs) “We have built multiple complex and sophisticated REIT platforms over the years and worked with many top-tier REIT specialists, but Sullivan’s REIT practice is by far the best, with Sarah Wellings.” Leading Partner: Ameek Ashok Ponda Next Generation Partner: Sarah Wellings Recommended Lawyers: Angela Gomes, Louis Monti, Shu Wei, Cameron Cosby International Tax “The international collaboration with S&W is exceptional.” “What really stands out is their willingness to engage, openness to different ideas and opinions, clearly expressed expectations, and clients' objectives.” Leading Partner: Douglas Stransky Recommended Lawyers: Lewis Greenwald, Eric Rietveld Tax > US Taxes: Contentious Recommended Lawyers: Richard Jones, David Nagle, Daniel Ryan, Caroline Kupiec Tax > US Taxes: Non-Contentious “Sarah Wellings is, quite simply, the best lawyer we have ever worked with. Her expertise extends far beyond tax and REIT matters, encompassing governance, financing, and complex commercial issues. Decades of experience and technical mastery make her an indispensable partner. Sarah is our central point of contact who makes everything seamless. Her in-house counsel background gives her a unique client perspective: she anticipates needs, solves problems before they arise, and delivers concise, well-structured updates that simplify even the most intricate issues. She coordinates effortlessly with all parties involved. Her judgment is exceptional. Sarah strikes the perfect balance between comprehensive academic rigor and practical, business-oriented advice. She combines technical REIT/tax excellence with commercial instincts, ensuring every recommendation is both legally sound and strategically smart. Her ability to translate complex law into clear, actionable guidance is unmatched. Sarah is incredibly responsive without ever sacrificing quality. She treats our matters as her own, demonstrating a rare ownership mindset and collaborative spirit. Her integrity is uncompromising, giving us absolute confidence in her counsel. In short, Sarah Wellings defines legal excellence: reliable, commercially minded, and client-focused. Working with her feels like being in the safest possible hands; she consistently exceeds expectations and orchestrates complex transactions with clarity and precision.” Recommended Lawyers: Ameek Ashok Ponda, Richard Jones, Douglas Stransky, Sarah Wellings About Sullivan Sullivan & Worcester (Sullivan) is a premier international law firm with lawyers in Boston, London, New York, Tel Aviv and Washington, D.C. Sullivan’s clients, including Fortune 500 companies, leading financial services firms and asset managers, boards of directors, real estate companies, and emerging businesses, rely on Sullivan’s ability to navigate complex legal and operational landscapes, the impeccable judgment of its lawyers, and its commitment to best-in-class client service.
Sullivan Advises Boston Green in Recapitalization with Fort Point Capital
Sullivan advised Boston Green Company, a leading provider of sustainable waste and recycling solutions in the Northeast, on its recapitalization with Fort Point Capital, a Boston‑based private equity firm focused on lower middle‑market investments. The recapitalization provides Boston Green with strategic capital to support its continued growth and service expansion, further positioning the company for long‑term success in the environmental services sector. The Sullivan team advising Boston Green included Lew Segall, Amy Sheridan, Erika Todd, Vic Baltera, Sharon Leifer, Christopher Curtis, Alexander Gansebom, Bailey Travers and Janice Lee. Read the full press release here.

Lewis N. Segall

Lew is the director of Sullivan's Corporate Department in Boston. He is also a member of the firm's Management Committee.

Lew's practice is focused on a number of transactional areas. He regularly represents public and private companies in equity and debt financings, joint ventures, domestic and international mergers and acquisitions, and general corporate matters. Lew also represents financial institutions in secured and unsecured credit facilities. His clients consist of major financial institutions, private equity groups, family-owned businesses, family offices and other investors, as well as emerging and established companies engaged in a variety of industries, including consulting, renewable energy, advertising, health care, communications, manufacturing and software.

Lew is the author of Mergers & Acquisitions: A Step-by-Step Legal and Practical Guide (2nd edition) (Wiley), which he co-authored with Edwin L. Miller, Jr.

Top Tier Firm, Legal 500 United States 2026
Sullivan & Worcester Ranked in the Legal 500 United States 2026 Edition
Boston, MA – Sullivan & Worcester announced that its practice groups and attorneys have been ranked and recommended in the Legal 500 United States 2026. The firm’s Real Estate practice was newly ranked Tier 1 in the “Real estate – mid-market ($0-500m)” category and the firm maintained rankings across a variety of practice areas. Partners Nicole Crum and John Steiner were newly ranked as Leading Partners and Ryan Rosenblatt as a Next Generation Partner. Peers and more than 300,000 corporate counsel were surveyed and interviewed globally in the past 12 months to assess law firms’ overall visibility and reputation, culminating in detailed rankings and editorial. The Legal 500 is an independent guide, and firms and individuals are recommended purely on merit. Sullivan's lawyers received the following rankings: Leading Partners: The Legal 500’s Guide to Outstanding Lawyers Nationwide Benjamin Armour - M&A: Middle-Market (Sub-$500m); M&A: middle-market ($0-250m) Ameek Ashok Ponda - Real Estate Investment Trusts (REITs)  Nicole Crum - Mutual/registered/exchange-traded funds Lewis Segall - M&A: Middle-Market (Sub-$500m); M&A: middle-market ($0-250m) John Steiner - Real estate – mid-market ($0-500m) Douglas Stransky - International Tax Joel Telpner - Fintech Next Generation Partners: The Legal 500’s Guide to Up-and-Coming Lawyers Nationwide Ryan Rosenblatt - General commercial disputes – mid-market ($250-500m) Sarah Wellings - Real Estate Investment Trusts (REITs) Practice Areas Ranked and Attorneys Recognized Corporate Governance “Our lead partner, Nicole Crum, who leads the investment industry practice, is exceptional. She demonstrates strong industry knowledge yet is very personable and anticipates what we need to know or what we should consider doing to handle any matter. The team roll up their sleeves and provide recommendations as to how we as a board should handle any matter. Strong service commitment and work ethic!” “The team we have at Sullivan & Worcester has served our company for years and knows the management team, staff as well as our board members. They are extremely responsive and proactive and anticipate what we should be aware of, concerned about, excited about, and how to handle oversight, processes and protocols to ensure we are carrying out our fiduciary duties. The partners are experts in this industry.” Leading Partner: Nicole Crum Recommended Lawyers: Howard Berkenblit, David Leahy Dispute Resolution/General Commercial Disputes “Diverse skillset. Client centric. Transparency. Urgency provided on all matters.” “I have worked with Gerry Silver for over 15 years and have found his pragmatic approach to complex matters refreshing. He understands our business, culture and market, and will give me his opinion in a digestible manner.” Next Generation Partner: Ryan Rosenblatt Recommended Lawyers: Gerry Silver, Patrick Dinardo, Laura Steinberg, Michael Sullivan, Amy Zuccarello, Erika Todd, Christopher Shields, Anna Lea McNerney Employee Benefits, Executive Compensation and Retirement Plans: Design “The level of expertise is top shelf. David Guadagnoli seems to know all of ERISA and IRS rulings.” “David Guadagnoli and Amy Sheridan both have superior knowledge in their respective areas. I value the ability to raise issues whether simple or complex. The firm takes the same diligent approach across all spectrums of complexity.” Recommended Lawyers: David Guadagnoli, Amy Sheridan Environment: Transactional Fintech “Sullivan & Worcester is one of the finest firms with which I have worked.” “The lawyers are excellent, and the firm consistently provides the highest quality of customer service.” Leading Partner: Joel Telpner Recommended Lawyers: Natalie Lederman, Benjamin Armour, Scott Kaufman, Harvey Bines, Christopher Curtis Land Use/Zoning Recommended Lawyers: Gregory Sampson, Ashley Brooks, Victor Baltera, Karen Kepler, Ashley Tan M&A: Corporate and Commercial: Venture Capital and Emerging Companies Recommended Lawyers: Scott Kaufman, Lewis Segall, Benjamin Armour, Michael Student M&A: Middle-Market ($0-250m) “The partner Lewis Segall has been working with our company for 15 years and we have a good working relationship with him. He knows our history and very attentive to our needs.” “Lewis Segall is very attentive to our needs. We very much value him.” Leading Partners: Benjamin Armour, Lewis Segall Recommended Lawyers: Natalie Lederman Mutual/Registered/Exchange-Traded Funds “Sullivan & Worcester's practice is defined by its deep expertise in investment funds and its ability to deliver clear, commercially grounded advice across the full fund lifecycle—from formation and structuring to regulatory compliance and complex transactions.” “The team is highly experienced, collaborative, and excel in efficient execution and clear communication.” Leading Partner: Nicole Crum Recommended Lawyers: David Leahy, David Mahaffey, Rachael Schwartz Real Estate Leading Partner: John Steiner Recommended Lawyers: Ashley Brooks, Karen Kepler, Gregory Sampson, Sharon Leifer, Louis Monti, Spencer Stone, Ashley Tan Real Estate Investment Trusts (REITs) “We have built multiple complex and sophisticated REIT platforms over the years and worked with many top-tier REIT specialists, but Sullivan’s REIT practice is by far the best, with Sarah Wellings.” Leading Partner: Ameek Ashok Ponda Next Generation Partner: Sarah Wellings Recommended Lawyers: Angela Gomes, Louis Monti, Shu Wei, Cameron Cosby International Tax “The international collaboration with S&W is exceptional.” “What really stands out is their willingness to engage, openness to different ideas and opinions, clearly expressed expectations, and clients' objectives.” Leading Partner: Douglas Stransky Recommended Lawyers: Lewis Greenwald, Eric Rietveld Tax > US Taxes: Contentious Recommended Lawyers: Richard Jones, David Nagle, Daniel Ryan, Caroline Kupiec Tax > US Taxes: Non-Contentious “Sarah Wellings is, quite simply, the best lawyer we have ever worked with. Her expertise extends far beyond tax and REIT matters, encompassing governance, financing, and complex commercial issues. Decades of experience and technical mastery make her an indispensable partner. Sarah is our central point of contact who makes everything seamless. Her in-house counsel background gives her a unique client perspective: she anticipates needs, solves problems before they arise, and delivers concise, well-structured updates that simplify even the most intricate issues. She coordinates effortlessly with all parties involved. Her judgment is exceptional. Sarah strikes the perfect balance between comprehensive academic rigor and practical, business-oriented advice. She combines technical REIT/tax excellence with commercial instincts, ensuring every recommendation is both legally sound and strategically smart. Her ability to translate complex law into clear, actionable guidance is unmatched. Sarah is incredibly responsive without ever sacrificing quality. She treats our matters as her own, demonstrating a rare ownership mindset and collaborative spirit. Her integrity is uncompromising, giving us absolute confidence in her counsel. In short, Sarah Wellings defines legal excellence: reliable, commercially minded, and client-focused. Working with her feels like being in the safest possible hands; she consistently exceeds expectations and orchestrates complex transactions with clarity and precision.” Recommended Lawyers: Ameek Ashok Ponda, Richard Jones, Douglas Stransky, Sarah Wellings About Sullivan Sullivan & Worcester (Sullivan) is a premier international law firm with lawyers in Boston, London, New York, Tel Aviv and Washington, D.C. Sullivan’s clients, including Fortune 500 companies, leading financial services firms and asset managers, boards of directors, real estate companies, and emerging businesses, rely on Sullivan’s ability to navigate complex legal and operational landscapes, the impeccable judgment of its lawyers, and its commitment to best-in-class client service.
Sullivan Advises Boston Green in Recapitalization with Fort Point Capital
Sullivan advised Boston Green Company, a leading provider of sustainable waste and recycling solutions in the Northeast, on its recapitalization with Fort Point Capital, a Boston‑based private equity firm focused on lower middle‑market investments. The recapitalization provides Boston Green with strategic capital to support its continued growth and service expansion, further positioning the company for long‑term success in the environmental services sector. The Sullivan team advising Boston Green included Lew Segall, Amy Sheridan, Erika Todd, Vic Baltera, Sharon Leifer, Christopher Curtis, Alexander Gansebom, Bailey Travers and Janice Lee. Read the full press release here.

Lewis N. Segall

Horizon Beverage Group, Inc. Acquired by the World’s Preeminent Distributor of Beverage Alcohol

Sullivan represented Horizon Beverage Group Inc., one of New England’s premier alcohol distributors, in its sale to Southern Glazer’s Wine & Spirits, the world’s preeminent distributor of beverage alcohol. The acquisition marks an exciting expansion for Southern Glazer’s, adding Massachusetts and Rhode Island as the 46th and 47th markets in its U.S. footprint, alongside operations in Canada and the Caribbean.

“We are grateful to Horizon’s employees, customers, and partners for so many years of success, and this transition represents an even brighter future for all,” said Bob Epstein, CEO/President at Horizon. “We’re confident that Southern Glazer’s strength and scale will not only support a smooth integration, but also create new opportunities for growth and success.”

“We’re committed to maintaining the exceptional service that Horizon is known for while bringing the added benefits of being part of the Southern Glazer’s family,” added Jim Rubenstein, CEO/Treasurer at Horizon. “This partnership ensures stability and growth for all stakeholders and strengthens our ability to deliver value across the board.”

Lewis N. Segall, Charles E. Chambers Jr., Ida J. Vanto, Sharon G. Leifer, Steven M. Cunningham, Jr. and Christopher C. Curtis

Wonder Media Network (WMN) Acquired by the World's Largest Independent Podcast Company

Sullivan represented Wonder Media Network (WMN), a female-founded, audio-first creative studio based in New York City, in its sale to Acast, the world’s largest independent podcast company. "WMN’s mission is so tightly aligned with that of Acast - bringing important and changemaking stories to the world," said WMN CEO Jenny Kaplan. "Together, we will allow both creators and advertisers to reach new audiences, build successful businesses, and shape the future of audio."

Lewis N. Segall, Joel R. Carpenter, Amy E. Sheridan, Erika L. Todd, Johanna Colpritt and Nathan Kosik-Desmond

Artificial Intelligence Company Advised in Growth Financing

Sullivan represented Impact Analytics Inc. in its $5.5 million growth financing round led by Argentum Capital Partners. The company unites artificial intelligence with human validation that brings machine learning to the forefront of data-driven business decisions.

Lewis N. Segall and Johanna Colpritt

Young businesswoman looking at smartphone in spaceship like corridor

Admiral Metals Acquired by Reliance Steel & Aluminum Co., Largest Metals Service Center Company in North America

Sullivan represented Admiral Metals who was acquired by Reliance Steel & Aluminium Co. (NYSE: RS). “Admiral Metals has built a strong reputation in the metals industry for providing specialty products, high levels of customer service and next-day delivery,” commented Jim Hoffman, Chief Executive Officer of Reliance. “We believe this acquisition will enable Admiral Metals to leverage Reliance’s scale in order to capitalize on further growth opportunities while maintaining its strong brand recognition. We are excited to welcome Admiral Metals to the Reliance Family of Companies, our 70th acquisition since our 1994 IPO.”

Lewis N. Segall, Victor N. Baltera and Sharon G. Leifer

Masy BioServices Acquired by a Leading Pharmaceutical and Biotech Contract Development and Manufacturing Organization

Sullivan represented Masy Systems Inc. ("Masy" or "Masy BioServices"), a preferred provider of cGMP Biostorage and pharma support services, in the sale of its Masy to Alcami Corporation, a leading pharmaceutical and biotech contract development and manufacturing organization (CDMO). 

Lewis N. Segall and Steven M. Cunningham, Jr.

Scientist holding DNA gel in front of samples for testing in laboratory

Lewis N. Segall