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Atty. John Hyeon Koo

Atty. John Hyeon Koo

John Hyeon Koo is a lawyer practicing corporate law. John received a B.A. degree from University of California at Los Angeles in 1985, and has been licensed for 32 years.

Old Tappan Old Tappan 32 yrs experience 32 year
Call (845) 839-9773 Book Appointment

Profile Summary

About John Hyeon Koo at a glance

John Hyeon Koo is a business attorney based in Old Tappan, New Jersey. They have 32+ years of legal experience, licensed to practice since 1994. Admitted to practice in New Jersey (1994) and New York (1995). Educated at University of Chicago (J.D., 1994) and University of California at Los Angeles (B.A., 1985). Serands clients in Old Tappan, NJ and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • John Hyeon Koo is a lawyer practicing corporate law
  • John received a B.A. degree from University of California at Los Angeles in 1985, and has been licensed for 32 years
  • John practices in Old Tappan, NJ

Practice Areas Explained

John Hyeon Koo's Areas of Practice

Each practice area below reflects the types of cases John Hyeon Koo 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.

John Hyeon Koo is one of 501,317 business attorneys indexed nationally. Browse business attorneys in New Jersey →

Jurisdictional Context

Why local counsel matters in New Jersey

Practicing law in New Jersey. Legal matters in New Jersey are governed by state-specific rules of civil and criminal procedure, statutes of limitations, and substantive law. Cases originating in Old Tappan are typically filed in the local municipal court or the appropriate New Jersey state district court, depending on subject matter and amount in controversy. An attorney licensed in New Jersey 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 Jersey courts without local counsel or pro hac vice admission.

Looking for additional New Jersey attorneys? Browse all attorneys in Old Tappan or all attorneys in New Jersey.

Frequently Asked

Common questions about John Hyeon Koo

Where is John Hyeon Koo's law office located?
John Hyeon Koo's law practice is located in Old Tappan, New Jersey. You can contact the office directly through this profile page.
What practice areas does John Hyeon Koo handle?
John Hyeon Koo focuses on business. Each practice area listed reflects experience handling cases of that type in New Jersey.
How long has John Hyeon Koo practiced law?
John Hyeon Koo has 32+ years of legal experience and has been licensed since 1994.
Where did John Hyeon Koo go to law school?
John Hyeon Koo earned their education at (J.D., 1994); (B.A., 1985).
How can I contact John Hyeon Koo for a consultation?
You can contact John Hyeon Koo 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.

Practice Areas

Education

J.D.
University of Chicago
- 1994
B.A.
University of California at Los Angeles
- 1985

Bar Admissions

New Jersey
Admitted: 1994
New York
Admitted: 1995

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