Atty. Brian Yoonsuk Sung

Atty. Brian Yoonsuk Sung

Brian Yoonsuk Sung is a lawyer practicing finance, prime brokerage and equity lending, corporate and business financings and 8 other areas of law. Brian received a A.B. degree from Dartmouth College in 1997, and has been licensed for 25 years.

New York New York 25 yrs experience 25 year
Call (332) 209-3945 Book Appointment

Profile Summary

About Brian Yoonsuk Sung at a glance

Brian Yoonsuk Sung is an Of Counsel based in New York, New York, practicing at Haynes and Boone, LLP. They have 25+ years of legal experience, licensed to practice since 2001. Their practice focuses on contracts, business, securities, litigation, and consumer. Admitted to practice in New York (2001). Educated at Columbia University School of Law (J.D., 2000) and Dartmouth College (A.B., 1997). Serands clients in New York, NY and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Brian Yoonsuk Sung is a lawyer practicing finance, prime brokerage and equity lending, corporate and business financings and 8 other areas of law
  • Brian received a A.B. degree from Dartmouth College in 1997, and has been licensed for 25 years
  • Brian practices at Haynes and Boone, LLP in New York, NY

Practice Areas Explained

Brian Yoonsuk Sung's Areas of Practice

Each practice area below reflects the types of cases Brian Yoonsuk Sung handles, with a brief overview of what that area of law covers.

Contracts

Brian Yoonsuk Sung is one of 76,762 contracts attorneys indexed nationally. Browse contracts attorneys in New York →

Business & Corporate Law

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

Brian Yoonsuk Sung is one of 501,317 business attorneys indexed nationally. Browse business attorneys in New York →

Securities Law

Brian Yoonsuk Sung is one of 64,529 securities attorneys indexed nationally. Browse securities attorneys in New York →

Civil Litigation

Civil litigation attorneys for breach of contract, business disputes, civil rights, and class action lawsuits.

Brian Yoonsuk Sung is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in New York →

Consumer Protection

Consumer protection attorneys for fraud, lemon law, debt harassment, and deceptive trade practices.

Brian Yoonsuk Sung is one of 50,607 consumer attorneys indexed nationally. Browse consumer 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 Brian Yoonsuk Sung

Where is Brian Yoonsuk Sung's law office located?
Brian Yoonsuk Sung's law practice is located in New York, New York. The firm is Haynes and Boone, LLP. You can contact the office directly through this profile page.
What practice areas does Brian Yoonsuk Sung handle?
Brian Yoonsuk Sung focuses on contracts, business, securities, litigation, consumer. Each practice area listed reflects experience handling cases of that type in New York.
How long has Brian Yoonsuk Sung practiced law?
Brian Yoonsuk Sung has 25+ years of legal experience and has been licensed since 2001.
Where did Brian Yoonsuk Sung go to law school?
Brian Yoonsuk Sung earned their education at (J.D., 2000); (A.B., 1997).
How can I contact Brian Yoonsuk Sung for a consultation?
You can contact Brian Yoonsuk Sung 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 School of Law
- 2000
A.B.
Dartmouth College
- 1997

Bar Admissions

New York
Admitted: 2001

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