Ivan A Sacks

Practice Areas

Well-known domestically and internationally, Ivan A. Sack's practice has a particular emphasis on advising ultra-high net worth families and family offices on structuring their closely held business interests, family offices, charitable foundations, the design and administration of trusts and estates, and comprehensive risk management, governance, and succession planning. Ivan heads the Withers Families and Family Office group, is a member of the firm's Latin American and Asia-Pacific groups and was also global chairperson of Withersworldwide from July 2013 to July 2019.

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 comprehensive risk management, governance and succession planning. He also frequently advises banks and trust companies on fiduciary matters.

Ivan is admitted to the bar of the State of New York and the Federal District Court for the Southern District of New York. He graduated from Columbia Law School, where he was a Harlan Fiske Stone Scholar, a Charles Evans Hughes Fellow and Editor-in-Chief of the Columbia Human Rights Law Review. He is an active member of several bar associations and speaks frequently on topics related to wealth planning.

He is the global head of Withers Pro Bono programs and serves as a director or other fiduciary for a number of private enterprises, trusts and charitable organizations. Among publicly acknowledged roles, he is Chairman of the Jose Limon Dance Foundation, Chairman of the International Patrons of the Duomo, and Trustee of the Brugnaro Blind Trust for the Mayor of Venice, Luigi Brugnaro.

Ivan is listed in America's Best Lawyers, New York Super Lawyers, Legal Week's Private Client Global Elite, Chambers and Partners, and Citywealth Leaders Lists, among others.

Professional Memberships

Association of the Bar of the City of New York

Society of Trust and Estate Practitioners

New York State Bar Association