Atty. Yi Sun

Atty. Yi Sun

Yi Sun is a lawyer practicing immigration, business, criminal defense. Yi has been licensed for 22 years.

St. Louis St. Louis 22 Years Experience 22 year
Call (314) 944-2954

Profile Summary

About Yi Sun at a glance

Yi Sun is a Member based in St. Louis, Missouri, practicing at Yi Sun & Associates, LLC. They have 22+ years of legal experience, licensed to practice since 2004. Their practice focuses on criminal defense, immigration, and business. Admitted to practice in Missouri (2004). Educated at Ocean University of China, China (LL.B. Washington, 2000). Serves clients in St. Louis, MO and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Yi Sun is a lawyer practicing immigration, business, criminal defense
  • Yi has been licensed for 22 years
  • Yi practices at Yi Sun & Associates, LLC in St. Louis, MO

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.

Criminal Defense

A criminal defense attorney protects your rights from arrest through trial. Find experienced lawyers handling DUI, drug, federal, theft, and violent-crime charges.

Yi Sun is one of 190,900 criminal defense attorneys indexed nationally. Browse criminal defense attorneys in Missouri →

Immigration Law

Immigration attorneys help with green cards, visas, citizenship, asylum, and deportation defense. Find a verified immigration lawyer for your case.

Yi Sun is one of 34,874 immigration attorneys indexed nationally. Browse immigration attorneys in Missouri →

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 452,854 business attorneys indexed nationally. Browse business attorneys in Missouri →

Jurisdictional Context

Why local counsel matters in Missouri

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

Looking for additional Missouri attorneys? Browse all attorneys in St. Louis or all attorneys in Missouri.

Frequently Asked

Common questions about Yi Sun

Where is Yi Sun's law office located?
Yi Sun's law practice is located in St. Louis, Missouri. The firm is Yi Sun & Associates, LLC. You can contact the office directly through this profile page.
What practice areas does Yi Sun handle?
Yi Sun focuses on criminal defense, immigration, business. Each practice area listed reflects experience handling cases of that type in Missouri.
How long has Yi Sun practiced law?
Yi Sun has 22+ years of legal experience and has been licensed since 2004.
Where did Yi Sun go to law school?
Yi Sun earned their education at (LL.B. Washington, 2000).
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.

Education

LL.B. Washington
Ocean University of China, China
- 2000

Bar Admissions

Missouri
Admitted: 2004

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