Ken Kern

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...

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

For over 20 years, Aaron E. Zerykier has focused his practice on commercial litigation, with experience litigating construction disputes, business dissolutions, shareholder disputes, real estate disputes, and business torts in federal and state trial courts. Aaron serves as a trusted advisor to his clients, recognizing that business owners are risk-averse and often seek to avoid litigation. He has represented a variety of clients in the construction industry, such as real estate developers an...

A veteran of the Nassau and Suffolk trial courts, John Nash has built a lengthy and distinguished career as a highly respected litigator across several practice areas. Mr. Nash joined Sullivan Papain in 1980, after working with the New York City Law Department Office of the Corporation Counsel where he served as unit chief and lead trial attorney in the prestigious Manhattan Trials Unit. He became a member of the firm in 1985, and in 1991 moved to the firm’s Long Island office. There, h...

Lee Rosenberg is a trial and appellate litigator with over 20 years of experience in all phases of matrimonial and family law practice. This includes the trial of complex custody, support and equitable distribution matters, as well as the important ability to settle these cases. Lee is a Fellow of the American Academy of Matrimonial Attorneys (AAML) where he previously served as National Parliamentarian and as Chair of the AAML's National Chapter Leaders Committee. He is a member of the AAML'...

Robert Sandler is a partner in the real estate and retail practice groups. He chairs the firm’s retail practice group. Mr. Sandler represents commercial landlords and retail and office tenants. He focuses on leasing and real estate development. His practice includes financing, acquisitions, tax deferred exchanges, co-ops, condominiums and other residential development. Over the past several years, he has represented various clients in connection with multi-state leasing and acquisitions...

Patrick Collins is a bankruptcy & restructuring lawyer and commercial litigator. Pat represents every type of party involved in bankruptcy cases and litigation brought in the bankruptcy courts. Pat advises creditors, debtors, trustees, committees, lenders, asset purchasers, landlords, shareholders, officers, and directors in bankruptcy proceedings. He has defended hundreds of preference, fraudulent transfer and other types of claw back claims and lawsuits in bankruptcy courts and other co...

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

Kathryn C. Cole is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation. Kathryn C., who practices law in Garden City, New York, has been recognized since 2025. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Kathryn C. 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...