Atty. Ivan A. Sacks
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.
Trusts and Estates Attorney · Serving New York, NY · 33+ Years Experience
Profile Summary
About Ivan A. Sacks at a Glance
Ivan A. Sacks is a trusts attorney based in New York, New York, practicing at Withers. They have 33+ years of legal experience, licensed to practice since 1993. Admitted to practice in New York (1993). Educated at Columbia University (J.D., 1992) and Columbia College (Columbia (B.A.). Recognitions include Best Lawyers in America — Trusts and Estates (2026), Best Lawyers in America — Additional Areas of Practice: (2026), and Best Lawyers in America — Closely Held Companies and Family Businesses Law (2026). Serves clients in New York, NY and the surrounding metropolitan area.
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About Ivan A. Sacks
- 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 comprehensive risk management, governance and succession planning
- He also frequently advises banks and trust companies on fiduciary matters
Practice Areas Explained
Ivan A. Sacks's Areas of Legal Practice
Each practice area below reflects the types of cases Ivan A. Sacks handles, with a practical overview of what that area of law involves and how it may apply to your situation in New York.
Trusts in New York
Ivan A. Sacks is one of 103,428 trusts attorneys indexed nationally. Browse trusts attorneys in New York →
Jurisdictional Context
Why Local Counsel Matters in New York
Practicing law in New York. Legal matters in New York are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in New York are typically filed in the local municipal court or the appropriate New York state district court, depending on subject matter and amount in controversy. An attorney licensed in New York brings working knowledge of local procedural deadlines, judicial practices in this venue, and the substantive law that applies to cases brought here. Out-of-state attorneys generally cannot represent clients in New York courts without local counsel or pro hac vice admission.
New York Courts and Legal Process
Choosing a New York-based attorney means your counsel already knows the local docketing timelines, preferred filing formats, and how individual judges typically rule on procedural motions — details that only come from practicing in this jurisdiction day after day. That local familiarity can translate to better strategy, faster filings, and fewer costly surprises.
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Professional Profile
Why Clients in New York Choose Ivan A. Sacks
Selecting an attorney is one of the most consequential decisions you can make when a legal matter arises. Below are the core qualities that distinguish Ivan A. Sacks's practice in the field of trusts.
Decade-Tested Legal Experience
Ivan A. Sacks brings 33+ years of hands-on legal practice — enough to have navigated the recurring fact patterns, procedural traps, and negotiation dynamics that shape case outcomes.
Focused Trusts Practice
Concentrating on trusts means Ivan A. Sacks's knowledge of relevant statutes, case law, and procedural nuances stays current — unlike generalist practices that spread attention across unrelated fields.
Local Presence in New York
A New York-based practice means Ivan A. Sacks attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.
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Ivan A. Sacks's Practice Areas & Specializations
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