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Atty. William Ko Maruyama

Atty. William Ko Maruyama

William Ko Maruyama is a lawyer practicing commercial/corporate litigation, tort insurance defense litigation, product liability and 3 other areas of law. William received a B.A. degree from University of California at Los Angeles in 1985, and has been licensed for 38 years.

Allentown Allentown 38 yrs experience 38 year
Call (484) 373-7790 Book Appointment

Profile Summary

About William Ko Maruyama at a glance

William Ko Maruyama is a probate, business, bankruptcy, product liability, and litigation attorney based in Allentown, Pennsylvania. They have 38+ years of legal experience, licensed to practice since 1988. Admitted to practice in California (1988), U.S. District Court, Central District of California (1991), U.S. District Court, Northern District of California (1995), and Pennsylvania (2013). Educated at McGeorge School of Law, University of the Pacific (J.D., 1988) and University of California at Los Angeles (B.A., 1985). Recognitions include Peer Reviewed. Serands clients in Allentown, PA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • William Ko Maruyama is a lawyer practicing commercial/corporate litigation, tort insurance defense litigation, product liability and 3 other areas of law
  • William received a B.A. degree from University of California at Los Angeles in 1985, and has been licensed for 38 years
  • William practices in Allentown, PA

Practice Areas Explained

William Ko Maruyama's Areas of Practice

Each practice area below reflects the types of cases William Ko Maruyama handles, with a brief overview of what that area of law covers.

Probate

William Ko Maruyama is one of 128,014 probate attorneys indexed nationally. Browse probate attorneys in Pennsylvania →

Business & Corporate Law

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

William Ko Maruyama is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Pennsylvania →

Bankruptcy & Debt

A bankruptcy attorney can help you eliminate debt, stop creditor harassment, and protect your home through Chapter 7 or Chapter 13.

William Ko Maruyama is one of 105,321 bankruptcy attorneys indexed nationally. Browse bankruptcy attorneys in Pennsylvania →

Product Liability

William Ko Maruyama is one of 66,193 product liability attorneys indexed nationally. Browse product liability attorneys in Pennsylvania →

Civil Litigation

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

William Ko Maruyama is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in Pennsylvania →

Jurisdictional Context

Why local counsel matters in Pennsylvania

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

Looking for additional Pennsylvania attorneys? Browse all attorneys in Allentown or all attorneys in Pennsylvania.

Frequently Asked

Common questions about William Ko Maruyama

Where is William Ko Maruyama's law office located?
William Ko Maruyama's law practice is located in Allentown, Pennsylvania. You can contact the office directly through this profile page.
What practice areas does William Ko Maruyama handle?
William Ko Maruyama focuses on probate, business, bankruptcy, product liability, litigation. Each practice area listed reflects experience handling cases of that type in Pennsylvania.
How long has William Ko Maruyama practiced law?
William Ko Maruyama has 38+ years of legal experience and has been licensed since 1988.
Where did William Ko Maruyama go to law school?
William Ko Maruyama earned their education at (J.D., 1988); (B.A., 1985).
How can I contact William Ko Maruyama for a consultation?
You can contact William Ko Maruyama 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 William Ko Maruyama received?
William Ko Maruyama's notable recognition includes: Peer Reviewed.

Education

J.D.
McGeorge School of Law, University of the Pacific
- 1988
B.A.
University of California at Los Angeles
- 1985

Awards

Peer Reviewed

Bar Admissions

California
Admitted: 1988
U.S. District Court, Central District of California
Admitted: 1991
U.S. District Court, Northern District of California
Admitted: 1995
Pennsylvania
Admitted: 2013

Reviews

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