Atty. Yi Sun

Atty. Yi Sun

Yi Sun is a lawyer practicing intellectual property, construction / development, commercial. Yi has been licensed for 23 years.

Chicago Chicago 23 J. Erfahrung 23 year
Call (872) 351-5460 Book Appointment

Profile Summary

About Yi Sun at a glance

Yi Sun is a business and ip attorney based in Chicago, Illinois. They have 23+ years of legal experience, licensed to practice since 2003. Admitted to practice in Illinois (2003) and New York (2007). Serands clients in Chicago, IL and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

Über uns

  • Yi Sun is a lawyer practicing intellectual property, construction / development, commercial
  • Yi has been licensed for 23 years
  • Yi practices in Chicago, IL

Practice Areas Explained

Yi Sun's Areas of Practice

Each practice area below reflects the types of cases Yi Sun 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.

Yi Sun is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Illinois →

Intellectual Property

IP attorneys protect inventions, brands, and creative work through patent prosecution, trademark registration, copyright, and trade-secret enforcement.

Yi Sun is one of 106,079 ip attorneys indexed nationally. Browse ip attorneys in Illinois →

Jurisdictional Context

Why local counsel matters in Illinois

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

Looking for additional Illinois attorneys? Browse all attorneys in Chicago or all attorneys in Illinois.

Frequently Asked

Common questions about Yi Sun

Where is Yi Sun's law office located?
Yi Sun's law practice is located in Chicago, Illinois. You can contact the office directly through this profile page.
What practice areas does Yi Sun handle?
Yi Sun focuses on business, ip. Each practice area listed reflects experience handling cases of that type in Illinois.
How long has Yi Sun practiced law?
Yi Sun has 23+ years of legal experience and has been licensed since 2003.
How can I contact Yi Sun for a consultation?
You can contact Yi Sun 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.

Bar Admissions

Illinois
Admitted: 2003
New York
Admitted: 2007

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