Atty. William Harrison Keller

Atty. William Harrison Keller

William Harrison Keller is a lawyer practicing trusts and estates, estate planning, estate administration and 9 other areas of law. William received a B.A. degree from University of California, and has been licensed for 53 years.

Valencia Valencia 53 yrs experience 53 year
Call (747) 209-0796 Book Appointment

Profile Summary

About William Harrison Keller at a glance

William Harrison Keller is a Partner based in Valencia, California, practicing at The Keller Law Firm. They have 53+ years of legal experience, licensed to practice since 1973. Their practice focuses on wills, trusts, probate, estate planning, and business. Admitted to practice in California (1973). Educated at University of California School of Law, Davis J.D. (—) and University of California B.A. (—). Recognitions include BV Distinguished. Serands clients in Valencia, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • William Harrison Keller is a lawyer practicing trusts and estates, estate planning, estate administration and 9 other areas of law
  • William received a B.A. degree from University of California, and has been licensed for 53 years
  • William practices at The Keller Law Firm in Valencia, CA and 1 other location

Practice Areas Explained

William Harrison Keller's Areas of Practice

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

Wills

William Harrison Keller is one of 34,541 wills attorneys indexed nationally. Browse wills attorneys in California →

Trusts

William Harrison Keller is one of 104,172 trusts attorneys indexed nationally. Browse trusts attorneys in California →

Probate

William Harrison Keller is one of 128,014 probate attorneys indexed nationally. Browse probate attorneys in California →

Estate Planning & Probate

An estate planning attorney prepares wills, trusts, powers of attorney, and healthcare directives to protect your family and pass on your assets.

William Harrison Keller is one of 226,537 estate planning attorneys indexed nationally. Browse estate planning attorneys in California →

Business & Corporate Law

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

William Harrison Keller is one of 501,317 business attorneys indexed nationally. Browse business attorneys in California →

Jurisdictional Context

Why local counsel matters in California

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

Looking for additional California attorneys? Browse all attorneys in Valencia or all attorneys in California.

Frequently Asked

Common questions about William Harrison Keller

Where is William Harrison Keller's law office located?
William Harrison Keller's law practice is located in Valencia, California. The firm is The Keller Law Firm. You can contact the office directly through this profile page.
What practice areas does William Harrison Keller handle?
William Harrison Keller focuses on wills, trusts, probate, estate planning, business. Each practice area listed reflects experience handling cases of that type in California.
How long has William Harrison Keller practiced law?
William Harrison Keller has 53+ years of legal experience and has been licensed since 1973.
Where did William Harrison Keller go to law school?
William Harrison Keller earned their education at (—); (—).
How can I contact William Harrison Keller for a consultation?
You can contact William Harrison Keller 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 Harrison Keller received?
William Harrison Keller's notable recognition includes: BV Distinguished.

Education

University of California School of Law, Davis J.D.
- In Progress
University of California B.A.
- In Progress

Awards

BV Distinguished

Bar Admissions

California
Admitted: 1973

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