Atty. Richard C Onsager

Atty. Richard C Onsager

Mr. Richard C Onsager is a lawyer practicing tax law, corporate, partnership and 4 other areas of law.

Phoenix Phoenix 44 yrs experience 44 year
Call (480) 916-2641 Book Appointment

Profile Summary

About Richard C Onsager at a glance

Richard C Onsager is a Member based in Phoenix, Arizona, practicing at Onsager Werner And Oberg P L C. They have 44+ years of legal experience, licensed to practice since 1982. Their practice focuses on business and tax. Admitted to practice in Arizona (1982) and U.S. Tax Court (1987). Educated at Arizona State University (J.D., 1982) and Arizona State University (B.A., 1977). Recognitions include AV Preeminent. Serands clients in Phoenix, AZ and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mr. Richard C Onsager is a lawyer practicing tax law, corporate, partnership and 4 other areas of law
  • Richard received a B.A. degree from Arizona State University in 1977, and has been licensed for 44 years
  • Richard practices at Onsager, Werner & Oberg, P.L.C. in Phoenix, AZ

Practice Areas Explained

Richard C Onsager's Areas of Practice

Each practice area below reflects the types of cases Richard C Onsager 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.

Richard C Onsager is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Arizona →

Tax Law

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

Richard C Onsager is one of 85,302 tax attorneys indexed nationally. Browse tax attorneys in Arizona →

Jurisdictional Context

Why local counsel matters in Arizona

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

Looking for additional Arizona attorneys? Browse all attorneys in Phoenix or all attorneys in Arizona.

Frequently Asked

Common questions about Richard C Onsager

Where is Richard C Onsager's law office located?
Richard C Onsager's law practice is located in Phoenix, Arizona. The firm is Onsager Werner And Oberg P L C. You can contact the office directly through this profile page.
What practice areas does Richard C Onsager handle?
Richard C Onsager focuses on business, tax. Each practice area listed reflects experience handling cases of that type in Arizona.
How long has Richard C Onsager practiced law?
Richard C Onsager has 44+ years of legal experience and has been licensed since 1982.
Where did Richard C Onsager go to law school?
Richard C Onsager earned their education at (J.D., 1982); (B.A., 1977).
How can I contact Richard C Onsager for a consultation?
You can contact Richard C Onsager 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 Richard C Onsager received?
Richard C Onsager's notable recognition includes: AV Preeminent.

Education

J.D.
Arizona State University
- 1982
B.A.
Arizona State University
- 1977

Awards

AV Preeminent

Bar Admissions

Arizona
Admitted: 1982
U.S. Tax Court
Admitted: 1987

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