Atty. Kareen E O'Brien

Atty. Kareen E O'Brien

Ms. Kareen E O'Brien is a lawyer practicing divorce, child custody, child support and 2 other areas of law.

Scottsdale Scottsdale 22 yrs experience 22 year
Call (480) 944-4136 Book Appointment

Profile Summary

About Kareen E O'Brien at a glance

Kareen E O'Brien is an Associate based in Scottsdale, Arizona. They have 22+ years of legal experience, licensed to practice since 2004. Their practice focuses on divorce, child custody, criminal defense, family law, and child support. Admitted to practice in California (2004), U.S. District Court, Central District of California (2004), and Arizona (2012). Educated at Southwestern University School of Law (J.D., 2004) and University of California, Irvine (B.A., 1992). Active member of Los Angeles County and American Bar Associations State Bar of California. Serands clients in Scottsdale, AZ and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Ms. Kareen E O'Brien is a lawyer practicing divorce, child custody, child support and 2 other areas of law
  • Kareen received a B.A. degree from University of California, Irvine in 1992, and has been licensed for 22 years
  • Kareen practices in Scottsdale, AZ

Practice Areas Explained

Kareen E O'Brien's Areas of Practice

Each practice area below reflects the types of cases Kareen E O'Brien handles, with a brief overview of what that area of law covers.

Divorce

A divorce attorney guides you through property division, spousal support, custody, and the final decree — contested or uncontested.

Kareen E O'Brien is one of 50,487 divorce attorneys indexed nationally. Browse divorce attorneys in Arizona →

Child Custody & Visitation

Kareen E O'Brien is one of 31,241 child custody attorneys indexed nationally. Browse child custody attorneys in Arizona →

Criminal Defense

A criminal defense attorney protects your rights from arrest through trial. Find experienced lawyers handling DUI, drug, federal, theft, and violent-crime charges.

Kareen E O'Brien is one of 214,270 criminal defense attorneys indexed nationally. Browse criminal defense attorneys in Arizona →

Family Law

Family law attorneys handle divorce, child custody, child support, adoption, prenups, and protective orders. Find verified family lawyers near you.

Kareen E O'Brien is one of 187,066 family law attorneys indexed nationally. Browse family law attorneys in Arizona →

Child Support

Kareen E O'Brien is one of 24,688 child support attorneys indexed nationally. Browse child support 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 Scottsdale 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 Scottsdale or all attorneys in Arizona.

Frequently Asked

Common questions about Kareen E O'Brien

Where is Kareen E O'Brien's law office located?
Kareen E O'Brien's law practice is located in Scottsdale, Arizona. You can contact the office directly through this profile page.
What practice areas does Kareen E O'Brien handle?
Kareen E O'Brien focuses on divorce, child custody, criminal defense, family law, child support. Each practice area listed reflects experience handling cases of that type in Arizona.
How long has Kareen E O'Brien practiced law?
Kareen E O'Brien has 22+ years of legal experience and has been licensed since 2004.
Where did Kareen E O'Brien go to law school?
Kareen E O'Brien earned their education at (J.D., 2004); (B.A., 1992).
How can I contact Kareen E O'Brien for a consultation?
You can contact Kareen E O'Brien 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.
Southwestern University School of Law
- 2004
B.A.
University of California, Irvine
- 1992

Bar Admissions

California
Admitted: 2004
U.S. District Court, Central District of California
Admitted: 2004
Arizona
Admitted: 2012

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