Doo Hyung Do

Nijole C. Olson is a top attorney recognized by Best Lawyers in the practice area(s) of Personal Injury Litigation - Plaintiffs. Nijole C., who practices law in Mechanicsburg, Pennsylvania, has been recognized since 2020. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Nijole C. is held by other top lawyers in the same geographic and legal practice area.

Veronica Cerruti is a top attorney recognized by Best Lawyers in the practice area(s) of Tax Law and Trusts and Estates. Veronica, who practices law in San Francisco, California, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Veronica is held by other top lawyers in the same geographic and legal practice area.

David M. Levine is a top attorney recognized by Best Lawyers in the practice area(s) of Business Organizations (including LLCs and Partnerships) and Corporate Law. David M., who practices law in Bridgeport, Connecticut, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which David M. is held by other top lawyers in the same geographic and legal practice area.

Kyle is a highly regarded family attorney who draws on deep experience and a competitive nature in seeking to prevail for his clients. A seasoned litigator, mediator, and collaborative lawyer, he handles the gamut of family law matters, with special expertise in complex custody and business cases. In addition, Kyle has cultivated a niche in working with Christians, who often struggle with reconciling divorce and their faith. Kyle began his legal career as a civil litigator but realized family...

Andrew J. Sarne is a top attorney recognized by Best Lawyers in the practice area(s) of Litigation - Insurance and Personal Injury Litigation - Defendants. Andrew J., who practices law in Houston, Texas, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Andrew J. is held by other top lawyers in the same geographic and legal practice area.

A veteran litigator with strong roots in complex litigation, Fred Baker has worked on a broad range of environmental, medical costs recovery, consumer and products liability cases and holds numerous leadership roles within the firm. Fred represents individuals, institutional investors, and governmental entities in a wide variety of cases. He leads the firm’s tobacco litigation, and was a member of the legal team that litigated the groundbreaking tobacco litigation on behalf of several S...

David serves as Managing Partner and is a Tax Partner in Sullivan’s Boston office, bringing over 25 years of experience to his dual roles. Leadership Role As Managing Partner, David collaborates closely with the firm’s Management Committee, partners, and business professionals to advance Sullivan’s vision of becoming a leading global, commercially focused mid-size law firm. He is dedicated to: Cultivating a culture of deep loyalty and high performance Implementing innovative...

Marcelo Halpern is a partner with the firm's Business practice and a member of the Technology Transactions & Privacy group. Marcelo's practice focuses on transactional, strategic and corporate representation of global "FORTUNE 100" companies, start-up and emerging growth companies, as well as U.S.-based and international governments and non-profits. His experience includes structuring and negotiating technology and intellectual property-oriented strategic alliances and joint ventures; sof...

Mr. Gonway specializes in real estate, mergers and acquisitions, commercial transactions, family offices and secured lending. His experience includes the acquisition, financing, construction, development and leasing of all types of commercial real estate (with particular expertise in multi-family housing), as well as the representation of clients in all aspects of corporate law, mergers and acquisitions and commercial transactions, including complex franchise acquisitions and private equity s...

David Sheldon’s strong background in computer science and technical experience in software engineering help him assist his clients with patent drafting, prosecution, and counseling for software-related inventions. David's experience includes drafting patents for various complex technologies, including machine learning/artificial intelligence, autonomous vehicle control systems, bioinformatics, and medical devices. David frequently helps his clients navigate the complicated issues surrou...