John Imbornoni

Ivan Sacks is a private client lawyer and trusted advisor to international and domestic families of significant wealth. He became global Chairman of Withers Worldwide in July 2013. Ivan is also head of the firm’s Latin American Planning Group.Both in the US and in an international context, he counsels families and entrepreneurs on the structuring of their closely held business interests, family offices, and charitable foundations, the design and administration of trusts and estates, and...

Daniel Linson is a lawyer recognized by Best Lawyers in the practice areas of Medical Malpractice Law - Plaintiffs and Personal Injury Litigation - Plaintiffs. Daniel practices law in New York, New York Best Lawyers has recognized Daniel Linson since 2022. 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 Daniel Linson is held by other lawyers.

Daniel Rubin is a trusts and estates lawyer whose practice focuses on domestic and international estate planning, asset protection planning, and estate administration for private clients, including but not limited to family business owners and corporate executives. In addition, Daniel represents many founders and entrepreneurs, often from the technology sector, who seek out Daniel for his practical income tax planning advice, especially in connection with the qualified small business stock (Q...

Jim A. Walden is a founding partner of Walden Macht & Haran LLP. Mr. Walden defends corporate and individual clients in high-stakes governmental investigations, regulatory actions and civil disputes. He has conducted many corporate internal investigations, including matters involving allegations of securities and other financial frauds, antitrust activity, insider trading, computer crimes, money laundering, medical-device fraud, tax violations and violations of the Foreign Corrupt Practic...

S. Susan Gross is a lawyer recognized by Best Lawyers in the practice area of Family Law. S. Susan practices law in New York, New York Best Lawyers has recognized S. Susan Gross 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 S. Susan Gross is held by other lawyers.

Lawrence S. Spiegel has more than two decades of experience advising individuals and corporations in complex criminal and civil matters. He has represented corporations, their directors, officers and employees in cases involving allegations of mail and wire fraud, securities fraud, tax fraud, government program and procurement fraud, bank fraud, consumer fraud and money laundering. He represents clients in connection with federal and state grand jury investigations, in inquiries by regulatory...

Adam M. Dlugacz is a lawyer recognized by Best Lawyers in the practice area of Medical Malpractice Law - Defendants. Adam M. practices law in New York, New York Best Lawyers has recognized Adam M. Dlugacz since 2024. 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 Adam M. Dlugacz is held by other lawyers.

Senior partner in one of the premier matrimonial firms in New York City, known as a consummate professional: litigator,negotiater, settler and someone who is both a thinker and thoughtful, caring and compassionate. he leads a group of attorneys who practice in that tradition. He is a teacher, lecturer and writer and for decades his articles and lectures have been well received by bench, bar and numerous specialty groups including accountants, mental health professionals and students of all ki...

Dennis J. Block is the Senior Chairman of the firm’s Global Corporate M&A Practice. He has handled numerous mergers and acquisitions transactions - both hostile and friendly - on behalf of acquirers, targets, and investment banks. The range of transactions handled by Dennis includes mergers, acquisitions, proxy contests, joint ventures, third-party tender offers, self-tender offers, and spin offs, and other forms of corporate restructurings and financings. As a corporate counselor, ...

Litigation partner Kate Campbell handles environmental, toxic tort and class action litigation and Superfund and RCRA remediation matters*. Since joining the firm in 2003, she has developed considerable experience in defending complex toxic tort claims for personal injury, wrongful death, medical monitoring and property damage, in representing potentially responsible parties across the country in CERCLA and RCRA matters, and in litigating federal, state and private enforcement actions under a...