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As Gavin Halligan grew up in Colorado there was never any question she would be a lawyer one day. Her parents just knew. Early in life, 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.”
Gavin attended The Catholic University of America in Washington, D.C., then the University of Denver Sturm College of Law – where, as predicted, she loved the law while discovering an affinity for litigation. She chose family law because it offered 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 for her clients.
Gavin loves the complexities of family law, especially when it involves business interests of any kind and complex assets. 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 entrepreneurs.
Halligan LLC handles family law matters such as divorce, maintenance/spousal support, high-asset divorce, divorce with business interests, child support, appeals, multistate family law, child custody, and post-decree issues. Gavin is a Super Lawyers "Rising Star" for 2019.
Ms. Halligan is a member of the Metro Denver Interdisciplinary Committee, the Denver Bar Association and the Colorado Bar Association's Family Law Section. She has been a Victim’s Advocate for the Federal Heights Police Department since law school.
6
Practice Areas
13 years
13 years
13 years
13 years
Free Consultation
$0 first 30 minutes
Always
State: Colorado
Acquired: 2012
No misconduct found
27 Client Reviews
Showing 1 - 5 of 6 reviews | Responsiveness
Posted by Maxwell | July 17, 2024 | Hired Attorney | Family
Unparalleled Legal Expertise for Business Owners at Halligan LLC
As a business owner going through a divorce in Colorado, I found myself in need of a family law attorney who could navigate the complexities of my case with an astute understanding of both family law and business ownership. Gavin Halligan and the team at Halligan LLC exceeded all my expectations. ...
We deeply appreciate your kind and thoughtful review. As a team, we understand the unique challenges that business owners face, and we strive to provide tailored and effective legal solutions to meet their specific needs. Your active involvement throughout the process was invaluable, and we are grateful for clients like you who fully engage with us. Wishing you continued success and all the best in your endeavors.
Posted by Charles | October 12, 2022 | Hired Attorney | Divorce & Separation
Charles Perry
Extremely happy in all phases of my divorce. Available when needed and always polite. Took the time to answer all my questions and most importantly always listened.
Thank you so much for the kind words, Charles! We are thrilled to hear your experience with Halligan LLC reflected our core values of responsiveness and compassion. Everyone at our firm strives to ensure clients receive prompt and empathetic attention. Thank you again!
Posted by Isher | February 11, 2021 | Hired Attorney | Divorce & Separation
Amazing Service!
Gavin and her team took on my divorce and custody jurisdiction case at the last minute right before Christmas. They were attentive, helpful, and responded to every email and concern I had being that I was out of state. And when I tell you I was losing my mind, I was losing it. They were patient with ...
Thank you so much for your thoughtful remarks! It's so pleasing to hear that our team exemplified our core values (Available, Compassionate, Knowledgable, and Detail-Oriented) in their approach, strategy, and resolution of your matter. We care deeply about the lives of our clients and we know that partnering with the right law firm can make the difference between positive and negative outcomes. We are honored that you approached and selected us to fill that need for you and are so humbled to have played a part in helping you find hope in your unique situation.
Posted by Marcus | April 10, 2018 | Hired Attorney | Divorce & Separation
Gavin Halligan will represent YOUR interests
Divorce and custody battles are exhausting and unfamiliar territory for first time divorcees! After having fired 2 other attorneys who I felt were not representing my interests, I found Gavin Halligan. Gavin has been a game changer for me. Gavin Halligan listens, offers sound advice, always returns...
Posted by Aura | June 17, 2015
Gavin Halligan and The Burnham Law Firm
Gavin Halligan has been working on my case since November, 2013. I highly recommend her and the Burnham Law Firm. They are an awesome team and have the most capable staff to help resolve any case! They are affordable and worth every cent. Gavin is concise, attentive to every detail, consistent, a...
"Gavin is one the fiercest advocates in and out of the courtroom that I have ever encountered. She is knowledgeable about the law as well as extremely protective of her clients. If you are looking for a no non-sense protector in an attorney Gavin Halligan is the attorney for you. I endorse this lawyer."
"Gavin is an aggressive but effective advocate for her clients. She's highly intelligent and knows the law. I strongly recommend Gavin for any family law related matter."
"Ms. Halligan is a smart, driven lawyer and advisor. Working with Ms. Halligan has pushed me to develop my own skills and improved my practice immensely. She is focused and dedicated to her clients' good results."
"Gavin is an excellent attorney and an aggressive, detail-oriented, and mindful advocate for her clients. As both a skilled negotiator and well-trained litigator, she provides value to her client's cases with a broad range of strategies. I fully endorse this attorney."
"Gavin has one of the sharpest legal minds of any lawyer I've come across through the practice of family law. Gavin's analytical, research and writing skills are second to none. She knows the law and obtains the best possible results for her clients. I highly recommend Gavin."
"I endorse this lawyer. Gavin is very skilled and works incredibly hard to obtain the best possible result on behalf of her client."
"Gavin is an exceptional attorney who most attorney's probably would not want to go "toe-to-toe" with in the courtroom. Expect the truth at all times, even when you do not like it. But if you listen, she will take your case from wherever she finds it to where you need it to be."
"I endorse this lawyer because she knows the law better than any other young attorney. Gavin is tough and strategizes to get the absolute best for her clients."
"Gavin is a game changing attorney. Gavin is a true advocate and student of the law who works to find an edge in every facet of a case. I endorse this lawyer."
"Gavin is a phenomenal attorney. Her motions practice is the highest caliber and her organizational and managerial skills are unsurpassed. She is a knowledgeable attorney and an excellent advocate."
"Gavin is incredibly intelligent and devastating in the courtroom. She is definitely an attorney to have in your corner."
"I hired Gavin less than a year ago to join The Burnham Law Firm. In that short time frame, she has become an indispensable asset to the firm. She is an exceptional strategist who is passionate about her clients and their children. Her work product (not just effort), her exceptional mind and focused drive required me to make her the firm's Senior Associate with managerial responsibilities and will be the attorney overseeing the Denver office when that permanent location opens in the Fall of 2014. Bottom line: When Gavin is on a case, everything is covered, nothing the opposing party does can be hidden, and her tenacity is underscored only by her professionalism and commitment to be great."
"Gavin is an exceptional lawyer who always keeps an eye on the ball. I know she will do an excellent job for you, whatever your legal needs may be."
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2026
Rising Star, Super Lawyers
2025
Rising Star, SuperLawyers
2024
Rising Star, SuperLawyers
2023
Rising Star, SuperLawyers
2022
Rising Star, SuperLawyers
2021
Rising Star, SuperLawyers
2020
Rising Star, SuperLawyers
2019
10 Best in Colorado, American Institute of Family Law Attorneys
2019
Rising Star, Super Lawyers
2018
Top 40 Under 40, The National Advocates
2017
Top 40 Under 40, The National Advocates
2017
Nationally Ranked Top 10 Attorney Award, National Academy Of Family Law Attorneys
2017
Top 40 Family Lawyer Under 40 in the State of Colorado, The American Society of Legal Advocates
2016
Top 10 Attorneys Under 40, National Academy Of Family Law Attorneys
2016
Top 40 Under 40, The National Advocates
2016
Top 40 Lawyers Under 40, American Society of Legal Advocates
2015
Top One Percent, National Association of Distinguished Counsel
2014
Senior Associate, The Burnham Law Firm, PC
2014
Partner, The Burnham Law Firm, P.C.
2018 - Present
Attorney, Halligan LLC
2014 - 2017
Partner, The Burnham Law Firm, P.C.
2013 - 2014
Senior Associate Attorney, The Burnham Law Firm, PC
2012 - 2019
Volunteer Victim's Advocate, Federal Heights Police Department
2019 - Present
Association of Family and Conciliation CourtsMember
2019 - Present
Denver Metro Chamber of CommerceGold Committee Member
2018 - Present
Metropolitan Denver Interdisciplinary CommitteeMember
2014 - Present
Colorado Bar AssociationMember
2014 - Present
Denver Bar AssociationMember
Successful decision
2012
JD - Juris Doctor
2009
BA - Bachelor of Arts
2025
2025 Eagle County Family Law Conference Attendee FLI/CBA
2014
2014
English
Spanish
Legal Answers
Joint tenancy title in CO: how it influences the division of the property in case of divorce?
06 Jul 2021
My ex wants 50/50 custody of our children but cannot physically have them 50% of the time due to work. Will he still get 50%?
15 Jun 2021
Do I share half the tax debt on a business my husband didn't allow me to be a part of?
18 Jun 2021