Atty. Mason Ji

Atty. Mason Ji

Mason Ji is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation and Criminal Defense: White-Collar. Mason, who practices law in Seattle, Washington, has been recognized since 2024.

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Profile Summary

About Mason Ji at a glance

Mason Ji is a criminal defense, business, white collar, and litigation attorney based in Seattle, Washington, practicing at Perkins Coie LLP. Admitted to practice in Washington, Washington State Bar Association. Educated at Harvard University (J.D., 2021). Recognitions include Best Lawyers in America — Commercial Litigation (2026) and Best Lawyers in America — Criminal Defense: White-Collar (2026). Serands clients in Seattle, WA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mason Ji is a top attorney recognized by Best Lawyers in the practice area(s) of Commercial Litigation and Criminal Defense: White-Collar
  • Mason, who practices law in Seattle, Washington, has been recognized since 2024
  • This recognition is based on an exhaustive peer-review survey, reflecting the high esteem in which Mason is held by other top lawyers in the same geographic and legal practice area

Practice Areas Explained

Mason Ji's Areas of Practice

Each practice area below reflects the types of cases Mason Ji 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.

Mason Ji is one of 214,270 criminal defense attorneys indexed nationally. Browse criminal defense attorneys in Washington →

Business & Corporate Law

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

Mason Ji is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Washington →

White Collar Crimes

Mason Ji is one of 20,025 white collar attorneys indexed nationally. Browse white collar attorneys in Washington →

Civil Litigation

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

Mason Ji is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in Washington →

Jurisdictional Context

Why local counsel matters in Washington

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

Looking for additional Washington attorneys? Browse all attorneys in Seattle or all attorneys in Washington.

Frequently Asked

Common questions about Mason Ji

Where is Mason Ji's law office located?
Mason Ji's law practice is located in Seattle, Washington. The firm is Perkins Coie LLP. You can contact the office directly through this profile page.
What practice areas does Mason Ji handle?
Mason Ji focuses on criminal defense, business, white collar, litigation. Each practice area listed reflects experience handling cases of that type in Washington.
Where did Mason Ji go to law school?
Mason Ji earned their education at (J.D., 2021).
How can I contact Mason Ji for a consultation?
You can contact Mason Ji 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 Mason Ji received?
Mason Ji's notable recognition includes: Best Lawyers in America — Commercial Litigation; Best Lawyers in America — Criminal Defense: White-Collar.

Education

J.D.
Harvard University
- 2021

Awards

Best Lawyers in America — Commercial Litigation
- 2026
Best Lawyers in America — Criminal Defense: White-Collar
- 2026

Bar Admissions

Washington, Washington State Bar Association

Reviews

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