Atty. Gavin Halligan

Atty. Gavin Halligan

When Gavin was growing up in Colorado, her parents had absolutely no doubt she would be a lawyer. It was not a decision; it was a deduction.

Denver Denver 14 yrs experience 14 year
Call (720) 861-2973 Book Appointment

Profile Summary

About Gavin Halligan at a glance

Gavin Halligan is a Principal based in Denver, Colorado, practicing at Halligan LLC. They have 14+ years of legal experience, licensed to practice since 2012. Their practice focuses on divorce, child custody, family law, business, and real estate. Admitted to practice in Colorado (2012). Educated at University of Denver Sturm College of Law (J.D., 2012) and The Catholic University of America (B.A., 2009). Recognitions include Peer Reviewed. Active member of Colorado Bar Association Family Law Section Denver Bar Association. Serands clients in Denver, CO and the surrounding metropolitan area.

Verified attorney profile · Updated June 2026

About

  • When Gavin was growing up in Colorado, her parents had absolutely no doubt she would be a lawyer
  • It was not a decision
  • it was a deduction
  • Early on Gavin showed a strong sense of fairness and the seemingly innate ability to articulate it
  • Often
  • A continual refrain in the Halligan home: “It’s not fair!” “Save it for when you’re a judge.” At The Catholic University of America in Washington, D.C., Gavin discovered a love of government – or, more accurately, the legislative process
  • Law school was next – University of Denver – where, as predicted, she loved the law
  • Studying law was fascinating, somewhere in the early days she realized that, someday at least, she wanted to write laws as well
  • When Gavin graduated, she had a choice to make – practice criminal or family law
  • She loved trial work and both offered the opportunity to regularly be in court and litigate
  • She chose family law because it fit perfectly with one of her passions – she has been a Victim’s Advocate for the Federal Heights Police Department since law school
  • Family law was the right choice for the many, many clients Gavin and Halligan LLC have helped over the years and for Gavin herself
  • Family law offers her the chance to “fix things” and “make them right.” In other words, to finally do what her parents told her to do, make things fair
  • Gavin loves the complexities of family law
  • Especially when a case involves business interests of any kind
  • She has been a student of business for most of her adult life and that shows in the great many successes the firm has had in cases involving businesses, professional practices, and high assets
  • The one thing to really know about Gavin?
  • She “cares about every outcome and knows that it rests on our shoulders to get it right.” Halligan LLC embraces that philosophy
  • Gavin ran for State Representative in 2016 but has shelved her political ambitions for the foreseeable future
  • Instead of dealing with the myriad of issues swirling around anything political right now, Gavin spends her spare time traveling with her husband, Mike, and playing with their Maltipoo, Puppin
  • Awards & Recognition • Rated by Super Lawyers 2020 • Avvo Rating - 10.0 • Gavin Halligan Avvo Reviews • Avvo - Clients' Choice Award 2014 • ASLA - Top 40 Under 40 • The National Advocates Top 40 Under 40 • NAFLA - Top 10 Ranking Memberships • Colorado Bar Association • Family Law Section • Denver Bar Association • Denver Metro Interdisciplinary Committee Member

Practice Areas Explained

Gavin Halligan's Areas of Practice

Each practice area below reflects the types of cases Gavin Halligan 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.

Gavin Halligan is one of 50,487 divorce attorneys indexed nationally. Browse divorce attorneys in Colorado →

Child Custody & Visitation

Gavin Halligan is one of 31,241 child custody attorneys indexed nationally. Browse child custody attorneys in Colorado →

Family Law

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

Gavin Halligan is one of 187,066 family law attorneys indexed nationally. Browse family law attorneys in Colorado →

Business & Corporate Law

Business attorneys advise founders and growing companies on entity formation, contracts, financing, M&A, and dispute resolution.

Gavin Halligan is one of 501,317 business attorneys indexed nationally. Browse business attorneys in Colorado →

Real Estate Law

Real estate attorneys handle home purchases, sales, commercial transactions, title disputes, and landlord-tenant matters.

Gavin Halligan is one of 316,149 real estate attorneys indexed nationally. Browse real estate 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 Denver 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 Denver or all attorneys in Colorado.

Frequently Asked

Common questions about Gavin Halligan

Where is Gavin Halligan's law office located?
Gavin Halligan's law practice is located in Denver, Colorado. The firm is Halligan LLC. You can contact the office directly through this profile page.
What practice areas does Gavin Halligan handle?
Gavin Halligan focuses on divorce, child custody, family law, business, real estate. Each practice area listed reflects experience handling cases of that type in Colorado.
How long has Gavin Halligan practiced law?
Gavin Halligan has 14+ years of legal experience and has been licensed since 2012.
Where did Gavin Halligan go to law school?
Gavin Halligan earned their education at (J.D., 2012); (B.A., 2009).
How can I contact Gavin Halligan for a consultation?
You can contact Gavin Halligan 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 Gavin Halligan received?
Gavin Halligan's notable recognition includes: Peer Reviewed.

Education

J.D.
University of Denver Sturm College of Law
- 2012
B.A.
The Catholic University of America
- 2009

Awards

Peer Reviewed

Bar Admissions

Colorado
Admitted: 2012

Reviews

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