Atty. John William Sunnen

Atty. John William Sunnen

John William Sunnen is a lawyer practicing taxation, civil litigation, law practice mgmt and 4 other areas of law. John received a B.S. degree from DePauw University in 1971, and has been licensed for 49 years.

San Diego San Diego 49 yrs experience 49 year
Call (619) 848-8023 Book Appointment

Profile Summary

About John William Sunnen at a glance

John William Sunnen is a Member based in San Diego, California, practicing at John W. Sunnen. They have 49+ years of legal experience, licensed to practice since 1977. Their practice focuses on trusts, estate planning, employment, business, and tax. Admitted to practice in Missouri (1977), Illinois (1978), California (1983), and U.S. Court of Appeals, Eighth Circuit and U.S Court of Appeals, Ninth Circuit (1983). Educated at Washington University (J.D. LL.M., 1977) and DePauw University (B.S. Washington, 1971). Recognitions include BV Distinguished. Active member of San Diego County and American Bar Associations State Bar of California The Missouri Bar. Serands clients in San Diego, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • John William Sunnen is a lawyer practicing taxation, civil litigation, law practice mgmt and 4 other areas of law
  • John received a B.S. degree from DePauw University in 1971, and has been licensed for 49 years
  • John practices at John W. Sunnen in San Diego, CA

Practice Areas Explained

John William Sunnen's Areas of Practice

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

Trusts

John William Sunnen is one of 104,171 trusts attorneys indexed nationally. Browse trusts 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.

John William Sunnen is one of 226,536 estate planning attorneys indexed nationally. Browse estate planning attorneys in California →

Employment Law

Employment lawyers represent workers in wrongful termination, discrimination, harassment, wage & hour disputes, and severance negotiations.

John William Sunnen is one of 169,120 employment attorneys indexed nationally. Browse employment attorneys in California →

Business & Corporate Law

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

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

Tax Law

Tax attorneys handle IRS audits, tax debt, international tax, estate planning, and tax court litigation.

John William Sunnen is one of 85,302 tax attorneys indexed nationally. Browse tax 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 San Diego 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 San Diego or all attorneys in California.

Frequently Asked

Common questions about John William Sunnen

Where is John William Sunnen's law office located?
John William Sunnen's law practice is located in San Diego, California. The firm is John W. Sunnen. You can contact the office directly through this profile page.
What practice areas does John William Sunnen handle?
John William Sunnen focuses on trusts, estate planning, employment, business, tax. Each practice area listed reflects experience handling cases of that type in California.
How long has John William Sunnen practiced law?
John William Sunnen has 49+ years of legal experience and has been licensed since 1977.
Where did John William Sunnen go to law school?
John William Sunnen earned their education at (J.D. LL.M., 1977); (B.S. Washington, 1971).
How can I contact John William Sunnen for a consultation?
You can contact John William Sunnen 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 William Sunnen received?
John William Sunnen's notable recognition includes: BV Distinguished.

Education

J.D. LL.M.
Washington University
- 1977
B.S. Washington
DePauw University
- 1971

Awards

BV Distinguished

Bar Admissions

Missouri
Admitted: 1977
Illinois
Admitted: 1978
California
Admitted: 1983
U.S. Court of Appeals, Eighth Circuit and U.S Court of Appeals, Ninth Circuit
Admitted: 1983
U.S. Tax Court
Admitted: 1984

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