Atty. John Sun

Atty. John Sun

John Sun represents a broad range of clients in securities and financing transactions, including asset-backed secured lending, purchase and sale of whole loans, warehouse facilities and public and private offerings of securities backed by residential mortgages and automobile receivables. John represents financial institutions in different types of financing transactions that are backed by pools of assets, including residential mortgages and automobile receivables.

Washington Washington 14 yrs experience 14 year
Call (202) 625-3500 Book Appointment

Profile Summary

About John Sun at a glance

John Sun is a business attorney based in Washington, District of Columbia, practicing at Katten. They have 14+ years of legal experience, licensed to practice since 2012. Admitted to practice in Pennsylvania, Pennsylvania Bar Association (2012) and District of Columbia, The District of Columbia Bar (2015). Educated at Cornell University (J.D., 2012). Recognitions include Best Lawyers in America — Banking and Finance Law (2026). Serands clients in Washington, DC and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • John Sun represents a broad range of clients in securities and financing transactions, including asset-backed secured lending, purchase and sale of whole loans, warehouse facilities and public and private offerings of securities backed by residential mortgages and automobile receivables
  • John represents financial institutions in different types of financing transactions that are backed by pools of assets, including residential mortgages and automobile receivables
  • He helps companies secure financing using these assets so they can continue to run their businesses
  • John understands his clients' needs and helps ensure that the transactions close on time
  • John has experience in mortgage originations, so he has a deeper understanding of the issues and risks involved with mortgage assets

Practice Areas Explained

John Sun's Areas of Practice

Each practice area below reflects the types of cases John 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.

John Sun is one of 501,317 business attorneys indexed nationally. Browse business attorneys in District of Columbia →

Jurisdictional Context

Why local counsel matters in District of Columbia

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

Looking for additional District of Columbia attorneys? Browse all attorneys in Washington or all attorneys in District of Columbia.

Frequently Asked

Common questions about John Sun

Where is John Sun's law office located?
John Sun's law practice is located in Washington, District of Columbia. The firm is Katten. You can contact the office directly through this profile page.
What practice areas does John Sun handle?
John Sun focuses on business. Each practice area listed reflects experience handling cases of that type in District of Columbia.
How long has John Sun practiced law?
John Sun has 14+ years of legal experience and has been licensed since 2012.
Where did John Sun go to law school?
John Sun earned their education at (J.D., 2012).
How can I contact John Sun for a consultation?
You can contact John 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.
What awards or recognition has John Sun received?
John Sun's notable recognition includes: Best Lawyers in America — Banking and Finance Law.

Practice Areas

Education

J.D.
Cornell University
- 2012

Awards

Best Lawyers in America — Banking and Finance Law
- 2026

Bar Admissions

Pennsylvania, Pennsylvania Bar Association
Admitted: 2012
District of Columbia, The District of Columbia Bar
Admitted: 2015

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