Atty. Robert J. O'Neil

Atty. Robert J. O'Neil

Robert J. O'Neil is a lawyer practicing child custody, child support, criminal defense and 2 other areas of law.

Gillette Gillette 49 yrs experience 49 year
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Profile Summary

About Robert J. O'Neil at a glance

Robert J. O'Neil is a Member based in Gillette, Wyoming, practicing at Robert J. O'Neil. They have 49+ years of legal experience, licensed to practice since 1977. Their practice focuses on divorce, child custody, criminal defense, child support, and traffic. Admitted to practice in Massachusetts (1977) and Wyoming (1979). Serands clients in Gillette, WY and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Robert J. O'Neil is a lawyer practicing child custody, child support, criminal defense and 2 other areas of law
  • Robert has been licensed for 49 years
  • Robert practices at Robert J. O'Neil in Gillette, WY

Practice Areas Explained

Robert J. O'Neil's Areas of Practice

Each practice area below reflects the types of cases Robert J. O'Neil 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.

Robert J. O'Neil is one of 50,487 divorce attorneys indexed nationally. Browse divorce attorneys in Wyoming →

Child Custody & Visitation

Robert J. O'Neil is one of 31,241 child custody attorneys indexed nationally. Browse child custody attorneys in Wyoming →

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.

Robert J. O'Neil is one of 214,270 criminal defense attorneys indexed nationally. Browse criminal defense attorneys in Wyoming →

Child Support

Robert J. O'Neil is one of 24,688 child support attorneys indexed nationally. Browse child support attorneys in Wyoming →

Traffic Violations

Robert J. O'Neil is one of 14,506 traffic attorneys indexed nationally. Browse traffic attorneys in Wyoming →

Jurisdictional Context

Why local counsel matters in Wyoming

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

Looking for additional Wyoming attorneys? Browse all attorneys in Gillette or all attorneys in Wyoming.

Frequently Asked

Common questions about Robert J. O'Neil

Where is Robert J. O'Neil's law office located?
Robert J. O'Neil's law practice is located in Gillette, Wyoming. The firm is Robert J. O'Neil. You can contact the office directly through this profile page.
What practice areas does Robert J. O'Neil handle?
Robert J. O'Neil focuses on divorce, child custody, criminal defense, child support, traffic. Each practice area listed reflects experience handling cases of that type in Wyoming.
How long has Robert J. O'Neil practiced law?
Robert J. O'Neil has 49+ years of legal experience and has been licensed since 1977.
How can I contact Robert J. O'Neil for a consultation?
You can contact Robert J. O'Neil 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.

Bar Admissions

Massachusetts
Admitted: 1977
Wyoming
Admitted: 1979

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