Atty. Kellen J. O'Brien

Atty. Kellen J. O'Brien

Atty. Kellen J.

Brookfield Brookfield 11 yrs experience 11 year
Call (262) 450-8012 Book Appointment

Profile Summary

About Kellen J. O'Brien at a glance

Kellen J. O'Brien is an Associate based in Brookfield, Wisconsin, practicing at Probst Law Offices, S.C.. They have 11+ years of legal experience, licensed to practice since 2015. Their practice focuses on divorce, child custody, family law, child support, and alimony. Admitted to practice in Wisconsin (2015) and United States District Court for the Eastern District of Wisconsin (2018). Educated at University of Colorado School of Law (J.D., 2014) and University of Wisconsin B.A. Journalism, English (—). Serands clients in Brookfield, WI and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Atty. Kellen J. O'Brien is a lawyer practicing family law, divorce, post divorce issues and 7 other areas of law
  • Kellen received a B.A. degree from University of Wisconsin, and has been licensed for 11 years
  • Kellen practices at Probst Law Offices, S.C. in Brookfield, WI

Practice Areas Explained

Kellen J. O'Brien's Areas of Practice

Each practice area below reflects the types of cases Kellen J. 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.

Kellen J. O'Brien is one of 50,487 divorce attorneys indexed nationally. Browse divorce attorneys in Wisconsin →

Child Custody & Visitation

Kellen J. O'Brien is one of 31,241 child custody attorneys indexed nationally. Browse child custody attorneys in Wisconsin →

Family Law

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

Kellen J. O'Brien is one of 187,066 family law attorneys indexed nationally. Browse family law attorneys in Wisconsin →

Child Support

Kellen J. O'Brien is one of 24,688 child support attorneys indexed nationally. Browse child support attorneys in Wisconsin →

Alimony / Spousal Support

Kellen J. O'Brien is one of 10,688 alimony attorneys indexed nationally. Browse alimony attorneys in Wisconsin →

Jurisdictional Context

Why local counsel matters in Wisconsin

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

Looking for additional Wisconsin attorneys? Browse all attorneys in Brookfield or all attorneys in Wisconsin.

Frequently Asked

Common questions about Kellen J. O'Brien

Where is Kellen J. O'Brien's law office located?
Kellen J. O'Brien's law practice is located in Brookfield, Wisconsin. The firm is Probst Law Offices, S.C.. You can contact the office directly through this profile page.
What practice areas does Kellen J. O'Brien handle?
Kellen J. O'Brien focuses on divorce, child custody, family law, child support, alimony. Each practice area listed reflects experience handling cases of that type in Wisconsin.
How long has Kellen J. O'Brien practiced law?
Kellen J. O'Brien has 11+ years of legal experience and has been licensed since 2015.
Where did Kellen J. O'Brien go to law school?
Kellen J. O'Brien earned their education at (J.D., 2014); (—).
How can I contact Kellen J. O'Brien for a consultation?
You can contact Kellen J. 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.
University of Colorado School of Law
- 2014
University of Wisconsin B.A. Journalism, English
- In Progress

Bar Admissions

Wisconsin
Admitted: 2015
United States District Court for the Eastern District of Wisconsin
Admitted: 2018

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