Atty. Gregory John Sonnenberg

Atty. Gregory John Sonnenberg

Mr. Gregory John Sonnenberg is a lawyer practicing commercial litigation, alternative dispute resolution, estate planning.

Costa Mesa Costa Mesa 7 yrs experience 7 year
Call (949) 390-6046 Book Appointment

Profile Summary

About Gregory John Sonnenberg at a glance

Gregory John Sonnenberg is an Associate based in Costa Mesa, California, practicing at Snell And Wilmer L L P. They have 7+ years of legal experience, licensed to practice since 2019. Their practice focuses on estate planning, business, litigation, and adr. Admitted to practice in Utah (2019), Supreme Court of Utah (2019), and Supreme Court of California (2020). Educated at University of Utah, S.J. Quinney College of Law (J.D., 2018) and University of Utah, David Eccles School of Business (MAcc Taxation, 2014). Active member of Professional Memberships and Activities •American Bar Association •American Institute of Certified Public Accountants. Serands clients in Costa Mesa, CA and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Mr. Gregory John Sonnenberg is a lawyer practicing commercial litigation, alternative dispute resolution, estate planning
  • Gregory received a MAcc degree from University of Utah, David Eccles School of Business in 2014, and has been licensed for 7 years
  • Gregory practices at Snell & Wilmer L.L.P. in Costa Mesa, CA

Practice Areas Explained

Gregory John Sonnenberg's Areas of Practice

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

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.

Gregory John Sonnenberg is one of 226,536 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.

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

Civil Litigation

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

Gregory John Sonnenberg is one of 454,532 litigation attorneys indexed nationally. Browse litigation attorneys in California →

Mediation & Arbitration

Mediators and arbitrators for civil, commercial, family, and employment dispute resolution.

Gregory John Sonnenberg is one of 73,906 adr attorneys indexed nationally. Browse adr 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 Costa Mesa 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 Costa Mesa or all attorneys in California.

Frequently Asked

Common questions about Gregory John Sonnenberg

Where is Gregory John Sonnenberg's law office located?
Gregory John Sonnenberg's law practice is located in Costa Mesa, California. The firm is Snell And Wilmer L L P. You can contact the office directly through this profile page.
What practice areas does Gregory John Sonnenberg handle?
Gregory John Sonnenberg focuses on estate planning, business, litigation, adr. Each practice area listed reflects experience handling cases of that type in California.
How long has Gregory John Sonnenberg practiced law?
Gregory John Sonnenberg has 7+ years of legal experience and has been licensed since 2019.
Where did Gregory John Sonnenberg go to law school?
Gregory John Sonnenberg earned their education at (J.D., 2018); (MAcc Taxation, 2014).
How can I contact Gregory John Sonnenberg for a consultation?
You can contact Gregory John Sonnenberg 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.

Education

J.D.
University of Utah, S.J. Quinney College of Law
- 2018
MAcc Taxation
University of Utah, David Eccles School of Business
- 2014

Bar Admissions

Utah
Admitted: 2019
Supreme Court of Utah
Admitted: 2019
Supreme Court of California
Admitted: 2020

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