Lee S. Siegel

Michele Masucci is the leader of the firm’s Health Care practice. She advises health care industry clients, with particular experience serving as general and special counsel to private equity firms and other investors looking to make investments in the industry. Her practice also involves providing counsel on the interplay between life sciences companies and the use of their products in a clinical setting. What do you focus on? As a former hospital in-house legal counsel, I know what ke...

A.J. Temsamani approaches every case with the goal of creating practical, reasonable solutions that achieve the client’s objectives in a sound and sensible manner. Whether litigating or mediating a divorce or family law matter, A.J. believes that every client and every case presents a unique situation and calls for an individualized, personal approach. A.J. has devoted his practice to divorce and family law for over 30 years. His reputation has contributed to his attainment of various p...

Louis P. Karol is a top attorney recognized by Best Lawyers in the practice area(s) of Trusts and Estates. Louis P., who practices law in Garden City, New York, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Louis P. is held by other top lawyers in the same geographic and legal practice area.

Jean Hegler has concentrated her practice in the areas of estate, gift and trust taxation, estate planning, estate administration and elder law planning. Jean has unique experience representing high net worth individuals, trusts, estates, family businesses and foundations in sophisticated tax planning and administration. She lectures frequently and has authored various legal publications, including a book entitled Wills: Structure, Design & Settlement under New York State Law , and she ha...

John P. McEntee is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. John P., who practices law in Bridgehampton, New York, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which John P. is held by other top lawyers in the same geographic and legal practice area.

Kevin P. Mulry is a litigator handling all aspects of civil litigation through trial and appeal. Kevin's practice focuses primarily on commercial litigation, health law litigation, and government investigations and litigation, and he serves as the firm's General Counsel. Kevin has tried cases involving commercial and health law disputes, trade secrets and royalties, employment discrimination, criminal forfeiture, tort, medical malpractice, and environmental law. He has also argued numerous ap...

Jeffrey M. Schlossberg is a top attorney recognized by Best Lawyers in the practice area(s) of Employment Law - Management and Litigation - Labor and Employment. Jeffrey M., who practices law in Melville, New York, has been recognized since 2023. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Jeffrey M. is held by other top lawyers in the same geographic and legal practice area.

John K. Diviney represents clients in labor arbitrations and grievances; unfair labor practice charges; employment discrimination, harassment, and retaliation claims; wrongful competition and restrictive covenant disputes; and wage and hour collective and class actions. A partner in Rivkin Radler’s Employment and Labor Practice Group, John regularly appears before federal and state regulatory agencies, including the National Labor Relations Board, the Equal Employment Opportunity Commis...

Walter J. Gumersell is a top attorney recognized by Best Lawyers in the practice area(s) of Business Organizations (including LLCs and Partnerships). Walter J., who practices law in Uniondale, New York, has been recognized since 2026. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Walter J. is held by other top lawyers in the same geographic and legal practice area.

Robert Sullivan, the firm’s senior member, is one of America’s top trial lawyers and an advocate with an unparalleled reputation for defending the public interest and championing equal justice under the law. For more than 40 years, he has been trying cases that have had a substantial impact not only for clients but also on the law itself. He has been an instrumental figure in developing and expanding the law of negligence. His skill was evident from the beginning. Mr. Sullivan joi...