Shawn Byrns

Eric J. Felsberg is a lawyer recognized by Best Lawyers in the practice area of Employment Law - Management. Eric J. practices law in Melville, New York Best Lawyers has recognized Eric J. Felsberg since 2020. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Eric J. Felsberg is held by other lawyers.

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...

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...

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'...

Eric W. Penzer is a trust and estate litigator representing high-net-worth individuals and families. Eric is a trusted advisor for clients involved in complex challenges related to generational wealth and asset transfer. As an experienced trial lawyer, Eric provides strategic representation in contested probate proceedings, fiduciary accounting disputes, discovery and turnover proceedings, and other trust and estate matters. He is known for being responsive, fair, and committed to achieving f...

Thomas J. Garry is a lawyer recognized by Best Lawyers in the practice area of Commercial Litigation. Thomas J. practices law in Uniondale, New York Best Lawyers has recognized Thomas J. Garry since 2027. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Thomas J. Garry is held by other lawyers.

Kalyan "Kal" Das is a top attorney recognized by Best Lawyers in the practice area(s) of Banking and Finance Law. Kalyan, who practices law in New York, New York, has been recognized since 2027. This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Kalyan is held by other top lawyers in the same geographic and legal practice area. Kal Das focuses on global bank and institutional finance, structured finance, project finance, asset securitization, di...

Brian J. Shenker is a lawyer recognized by Best Lawyers in the practice area of Employment Law - Management. Brian J. practices law in Melville, New York Best Lawyers has recognized Brian J. Shenker since 2025. The Best Lawyers recognition is based on a peer-review survey of lawyers in the same geographic region and legal practice area. The recognition reflects the professional regard in which Brian J. Shenker is held by other lawyers.

Patricia C. Marcin is an attorney with Rivkin Radler LLP in Uniondale, New York, where she focuses her practice on Trusts and Estates . She assists individuals, families, and business owners with personal, family, and business planning, including the preparation of wills, trusts, and other estate planning documents. Her work also encompasses all phases of estate administration, such as the analysis and review of estate and fiduciary income tax matters, as well as the legal and administrative ...

Scott A. Eisenmesser is an attorney with Rivkin Radler LLP in Uniondale, New York, where he focuses his practice on Trusts and Estates , including complex estate planning, trust and estate administration, business valuations, and corporate and real estate tax matters . Scott represents individuals, families, and family-owned businesses, including large real estate companies throughout the metropolitan area. He advises clients on long-term estate and tax planning and regularly serves as genera...