Sa represents emerging growth and established energy technology, information technology, life sciences, and retail companies; investors and investment banks in public offerings; SPAC transactions; 144A offerings and other private financings; mergers & acquisitions; joint ventures; and strategic partnerships. Sa is listed among the Top 100 Cleantech & Renewables Lawyers by Euromoney’s LMG Cleantech & Renewable Energy. He was also named a Massachusetts Super Lawyer in 2014 and every year since.

Sa is a senior member of the firm’s Securities Practice Group and Technology Practice Group and serves as Co-chair of the firm's Energy & Sustainability Practice. The firm’s Energy & Sustainability Practice has completed more than 500 transactions across energy sectors totaling over $10 billion since 2006. Serving more than 250 clients, spanning the ecosystem from emerging companies to large corporations, venture capital and private equity funds, investment banks, project developers, and family offices, the firm is recognized nationally as a leading law firm in the space.

Sa has worked on a wide variety of capital-raising projects, including equity, debt, syndicated loan, strategic investment, and structured finance offerings, with aggregate proceeds of more than $10.6 billion. He has extensive experience in corporate finance and securities law as well as mergers and acquisitions. Sa represents issuers, underwriters, initial purchasers, and placement agents in public and private equity offerings, debt offerings (particularly high-yield, but also investment grade), bank financings, leveraged buyouts, securitizations, and related transactions as well as private equity funds in leveraged buyouts. He is also a key contributor to MintzEdge, an online resource for entrepreneurs that includes useful tools and information for starting and growing a company.

Sa has an MBA in corporate finance and focuses on adding value in complex financing structures and helping younger companies navigate the challenges of the public and private markets. He handles projects in a broad range of sectors, including energy and clean technology, information technology, telecommunications, materials technology, biotech, aerospace, semiconductor, retail, and hospitality. He also has extensive international experience — he previously practiced in New York, Tokyo, and Hong Kong and now works from the Boston office of Mintz. He has represented clients in the United States, Australia, Canada, China, France, Germany, Japan, Korea, the Netherlands, Turkey, the United Kingdom, and elsewhere.