Yechiel Kasher

Nelson A. Boxer represents corporations and individuals in criminal prosecutions, criminal and regulatory investigations, and in commercial litigation. A trial lawyer, he served as an Assistant United States Attorney in the Southern District of New York for seven years. In private practice, Mr. Boxer has been lead counsel in high-profile criminal and civil investigations and trials, involving securities, health care, banking, accounting, and tax, among other areas of law. Mr. Boxer also has e...

Paul M. Roy is a top attorney recognized by Best Lawyers in the practice area(s) of Nonprofit / Charities Law. Paul M., who practices law in New Haven, Connecticut, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Paul M. is held by other top lawyers in the same geographic and legal practice area.

Peter advises individuals and families with respect to estate planning, wealth preservation issues and business succession planning. He also represents businesses and entrepreneurs with respect to startup ventures, financing, and mergers and acquisitions. He further represents tax exempt organizations, foundations and charitable groups.

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...

Experience Mr. Mullins concentrates his practice in the areas of litigating personal injury and commercial matters, as well as liability and discrimination actions brought both on behalf of or against the Firm’s wide variety of clients, including cities, counties, school districts, universities, hospitals, manufacturers, professional corporations and various other entities, in conjunction with both insured and self-insured programs. Tim has considerable litigation experience representin...

Maureen Rouse-Ayoub is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management, Labor Law - Management and Litigation - Labor and Employment. Maureen, who practices law in Novi, Michigan, has been recognized since 2021. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Maureen is held by other top lawyers in the same geographic and legal practice area.

Sean A. Bryan is a partner and is chair of the firm’s Tax Law practice. Mr. Bryan’s primary practice involves the formation, structuring and maintenance of entities used in business transactions (including partnerships, limited liability companies, and corporations), and the federal and state tax aspects of business transactions. Mr. Bryan has handled complex tax and transactional matters for over 25 years representing individuals, private business interests, and passive investors...

Chris Whitney has more than 30 years of experience as a commercial litigation attorney, with extensive trial experience, jury and non-jury, in the state and federal courts of Massachusetts and Rhode Island. He has also successfully mediated and arbitrated countless disputes. Cases he has handled include bankruptcy and state receivership actions, insurance coverage disputes, corporate divorce/shareholder litigation, partnership disputes, class actions, real estate title disputes, products liab...

Levin Papantonio shareholder Timothy O'Brien is a board-certified civil trial attorney who concentrates his practice in the areas of mass tort litigation, product liability, personal injury, wrongful death, and transactional liability. Mr. O'Brien is rated "A-V Preeminent" by the prestigious Martindale-Hubbell lawyer peer-rating service (the "A-V Preeminent" rating is the highest rating an attorney can receive). In September 2018, Mr. O’Brien was appointed by the United States Southern ...

Shannon Frankel is a trucking industry attorney with a proven track record. For more than 18 years, Shannon defended trucking companies, regularly handling multi-million-dollar claims in both the state and federal courts of North Carolina. During her time on the defense, she learned how the trucking industry views and handles catastrophic injury and wrongful death cases, developing relationships with numerous industry executives, national counsel, and expert witnesses along the way. Her exper...