Atty. Casey John Mulligan

Atty. Casey John Mulligan

Casey John Mulligan is a lawyer practicing criminal defense, drug crimes, driving while intoxicated and 44 other areas of law. Casey received a B.A. degree from University of Colorado in 1989, and has been licensed for 34 years.

Boulder Boulder 34 yrs experience 34 year
Call (720) 983-3791 Book Appointment

Profile Summary

About Casey John Mulligan at a glance

Casey John Mulligan is a Member based in Boulder, Colorado, practicing at Mulligan & Mulligan, PLLC. They have 34+ years of legal experience, licensed to practice since 1992. Their practice focuses on dui/dwi, drug crimes, criminal defense, white collar, and sex crimes. Admitted to practice in Colorado (1992) and U.S. District Court, District of Colorado (1992). Educated at University of Colorado School of Law (J.D., 1992) and University of Colorado (B.A., 1989). Recognitions include AV Preeminent. Active member of Boulder County Bar Association (Co-chair, Criminal Law Section) Colorado Bar Association Colorado Criminal Defense Bar Boulder Criminal Defense Bar. Serands clients in Boulder, CO and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • Casey John Mulligan is a lawyer practicing criminal defense, drug crimes, driving while intoxicated and 44 other areas of law
  • Casey received a B.A. degree from University of Colorado in 1989, and has been licensed for 34 years
  • Casey practices at Mulligan & Mulligan, PLLC in Boulder, CO

Practice Areas Explained

Casey John Mulligan's Areas of Practice

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

DUI / DWI Defense

Find experienced DUI and DWI defense attorneys near you. Compare verified profiles, read client reviews, and consult about your case for free.

Casey John Mulligan is one of 29,977 dui/dwi attorneys indexed nationally. Browse dui/dwi attorneys in Colorado →

Drug Crimes

Casey John Mulligan is one of 6,966 drug crimes attorneys indexed nationally. Browse drug crimes attorneys in Colorado →

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.

Casey John Mulligan is one of 214,271 criminal defense attorneys indexed nationally. Browse criminal defense attorneys in Colorado →

White Collar Crimes

Casey John Mulligan is one of 20,025 white collar attorneys indexed nationally. Browse white collar attorneys in Colorado →

Sex Crimes

Casey John Mulligan is one of 5,340 sex crimes attorneys indexed nationally. Browse sex crimes attorneys in Colorado →

Jurisdictional Context

Why local counsel matters in Colorado

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

Looking for additional Colorado attorneys? Browse all attorneys in Boulder or all attorneys in Colorado.

Frequently Asked

Common questions about Casey John Mulligan

Where is Casey John Mulligan's law office located?
Casey John Mulligan's law practice is located in Boulder, Colorado. The firm is Mulligan & Mulligan, PLLC. You can contact the office directly through this profile page.
What practice areas does Casey John Mulligan handle?
Casey John Mulligan focuses on dui/dwi, drug crimes, criminal defense, white collar, sex crimes. Each practice area listed reflects experience handling cases of that type in Colorado.
How long has Casey John Mulligan practiced law?
Casey John Mulligan has 34+ years of legal experience and has been licensed since 1992.
Where did Casey John Mulligan go to law school?
Casey John Mulligan earned their education at (J.D., 1992); (B.A., 1989).
How can I contact Casey John Mulligan for a consultation?
You can contact Casey John Mulligan 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 Casey John Mulligan received?
Casey John Mulligan's notable recognition includes: AV Preeminent.

Education

J.D.
University of Colorado School of Law
- 1992
B.A.
University of Colorado
- 1989

Awards

AV Preeminent

Bar Admissions

Colorado
Admitted: 1992
U.S. District Court, District of Colorado
Admitted: 1992

Reviews

4.8
11 Review
5 0
4 0
3 0
2 0
1 0
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