Atty. Yi Sun
Yi Sun is a lawyer practicing immigration, business, criminal defense. Yi has been licensed for 22 years.
Business & More Attorney · Serving St. Louis, MO · 22+ Years Experience
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.
Get Legal Help from Yi Sun in St. Louis
Sign up free and choose one of the two methods below.
Have a legal question? Sign up free, submit it through the Ask the Attorney module and receive a focused answer from a specialist.
- Free to ask a question
- Answers from specialist attorneys
- Optional private / anonymous question
Request an online video meeting or an in-person consultation at the attorney's office. Pick a time that works for you and share the details securely.
- Online video meeting
- In-person at the attorney's office
- Secure messaging and payment
About Yi Sun
- 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 Legal Practice
Each practice area below reflects the types of cases Yi Sun handles, with a practical overview of what that area of law involves and how it may apply to your situation in St. Louis.
Criminal Defense in St. Louis
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 212,605 criminal defense attorneys indexed nationally. Browse criminal defense attorneys in Missouri →
Immigration Law in St. Louis
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 40,259 immigration attorneys indexed nationally. Browse immigration attorneys in Missouri →
Business & Corporate Law in St. Louis
Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.
Yi Sun is one of 497,491 business attorneys indexed nationally. Browse business attorneys in Missouri →
Jurisdictional Context
Why Local Counsel Matters in St. Louis
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.
St. Louis Courts and Legal Process
Choosing a St. Louis-based attorney means your counsel already knows the local docketing timelines, preferred filing formats, and how individual judges typically rule on procedural motions — details that only come from practicing in this jurisdiction day after day. That local familiarity can translate to better strategy, faster filings, and fewer costly surprises.
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?
What practice areas does Yi Sun handle?
How long has Yi Sun practiced law?
Where did Yi Sun go to law school?
How can I contact Yi Sun for a consultation?
Professional Profile
Why Clients in St. Louis Choose Yi Sun
Selecting an attorney is one of the most consequential decisions you can make when a legal matter arises. Below are the core qualities that distinguish Yi Sun's practice in the field of criminal defense, immigration, and business.
Decade-Tested Legal Experience
Yi Sun brings 22+ years of hands-on legal practice — enough to have navigated the recurring fact patterns, procedural traps, and negotiation dynamics that shape case outcomes.
Broad Practice Area Coverage
Covering criminal defense, immigration, and business, Yi Sun can address the full spectrum of a client's legal needs without requiring referrals to separate specialists for each issue.
Local Presence in St. Louis
A St. Louis-based practice means Yi Sun attends hearings in the same courthouses, knows the local clerks, and understands the unwritten scheduling norms that affect every case filed here.
Case Types
Common Legal Issues Yi Sun Handles in St. Louis
Below is a representative sample of the types of matters Yi Sun has experience with under Missouri law. If your situation involves one of these case categories, this attorney may be well positioned to help you understand your options.
This list is illustrative, not exhaustive. Contact Yi Sun directly to discuss the specifics of your situation.
Search Reference
How People Find Yi Sun Online
Prospective clients searching for legal help in St. Louis commonly use a combination of the attorney's name and their specific legal need. The following search terms frequently lead people to this profile and to attorneys like Yi Sun.
If any of the above matches what you searched for, you've found the right profile. Use the contact options at the top of this page to get in touch with Yi Sun directly.
Yi Sun's Practice Areas & Specializations
Education & Law School Background
Bar Admissions & Licensed Jurisdictions
Client Reviews & Ratings — Yi Sun
No reviews yet.