Atty. Mark E. Haranzo
Mark’s practice is focused on domestic and international private client matters for affluent individuals and their families. His clients include entrepreneurs, corporate executives, family offices, real estate developers, business owners and investment bankers, as well as artists, writers, collectors and philanthropists.
Trusts and Estates Attorney · Serving New York, NY
Profile Summary
About Mark E. Haranzo at a Glance
Mark E. Haranzo is a trusts attorney based in New York, New York, practicing at Holland & Knight LLP. Educated at Stetson University (J.D., 1987). Recognitions include Best Lawyers in America — Trusts and Estates (2026). Serves clients in New York, NY and the surrounding metropolitan area.
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About Mark E. Haranzo
- Mark’s practice is focused on domestic and international private client matters for affluent individuals and their families
- His clients include entrepreneurs, corporate executives, family offices, real estate developers, business owners and investment bankers, as well as artists, writers, collectors and philanthropists
- He has more than twenty years experience in all aspects of estate and gift planning for individuals and families, many with complex multi-generational or multi-jurisdictional issues
- He regularly advises corporate and individual fiduciaries and beneficiaries on all aspects of trust and estate administration
- He also represents clients in connection with disputes including Will and Trust contests, fiduciary appointments and contested accountings
Practice Areas Explained
Mark E. Haranzo's Areas of Legal Practice
Each practice area below reflects the types of cases Mark E. Haranzo 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
Mark E. Haranzo 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 Mark E. Haranzo
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 Mark E. Haranzo's practice in the field of trusts.
Focused Trusts Practice
Concentrating on trusts means Mark E. Haranzo'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 Mark E. Haranzo 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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Mark E. Haranzo's Practice Areas & Specializations
Education & Law School Background
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