Atty. William Harris Diamond

Atty. William Harris Diamond

William Harris Diamond is a lawyer practicing commercial real estate law, financing, partnership law and 2 other areas of law. William received a B.A. degree from Brandeis University in 1981, and has been licensed for 44 years.

New York New York 44 yrs experience 44 year
Call (747) 400-1329 Book Appointment

Profile Summary

About William Harris Diamond at a glance

William Harris Diamond is a Member based in New York, New York, practicing at DeCampo, Diamond & Ash. They have 44+ years of legal experience, licensed to practice since 1982. Their practice focuses on business, real estate, and commercial re. Admitted to practice in New York (1982). Educated at Columbia University (J.D., 1981) and Brandeis University (B.A., 1981). Active member of New York State Bar Association. Serands clients in New York, NY and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • William Harris Diamond is a lawyer practicing commercial real estate law, financing, partnership law and 2 other areas of law
  • William received a B.A. degree from Brandeis University in 1981, and has been licensed for 44 years
  • William practices at DeCampo, Diamond & Ash in New York, NY

Practice Areas Explained

William Harris Diamond's Areas of Practice

Each practice area below reflects the types of cases William Harris Diamond handles, with a brief overview of what that area of law covers.

Business & Corporate Law

Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.

William Harris Diamond is one of 501,317 business attorneys indexed nationally. Browse business attorneys in New York →

Real Estate Law

Real estate attorneys handle home purchases, sales, commercial transactions, title disputes, and landlord-tenant matters.

William Harris Diamond is one of 316,149 real estate attorneys indexed nationally. Browse real estate attorneys in New York →

Commercial Real Estate

William Harris Diamond is one of 16,000 commercial re attorneys indexed nationally. Browse commercial re 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 andnue, 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.

Looking for additional New York attorneys? Browse all attorneys in New York or all attorneys in New York.

Frequently Asked

Common questions about William Harris Diamond

Where is William Harris Diamond's law office located?
William Harris Diamond's law practice is located in New York, New York. The firm is DeCampo, Diamond & Ash. You can contact the office directly through this profile page.
What practice areas does William Harris Diamond handle?
William Harris Diamond focuses on business, real estate, commercial re. Each practice area listed reflects experience handling cases of that type in New York.
How long has William Harris Diamond practiced law?
William Harris Diamond has 44+ years of legal experience and has been licensed since 1982.
Where did William Harris Diamond go to law school?
William Harris Diamond earned their education at (J.D., 1981); (B.A., 1981).
How can I contact William Harris Diamond for a consultation?
You can contact William Harris Diamond directly through this profile page. Click "Ask the Attorney" to submit a question, or "Schedule a Consultation" to book a meeting. Most claimed-profile attorneys respond within one business day.

Education

J.D.
Columbia University
- 1981
B.A.
Brandeis University
- 1981

Bar Admissions

New York
Admitted: 1982

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