Halligan LLC
Consultations: Click Here or call (720) 608-2361

Gavin Halligan

Gavin is a Colorado native and has been practicing family law litigation and appeals since 2013. Gavin has tried cases throughout Colorado counties including Adams, Arapahoe, Boulder, Broomfield, El Paso, Denver, Douglas, Jefferson, Larimer and Weld.

Gavin is an advocate, strategically using her knowledge of the law to achieve clients’ goals. Gavin has handled numerous high asset and high conflict complex litigation matters, along with appeals.

Apart from practicing law, Gavin is fluent in Spanish and has been a Victim’s Advocate for the Federal Heights Police Department since 2012. Gavin also enjoys traveling with her husband, Mike, participating in state and local politics and playing with her Maltipoo dog, Puppin.

Bar Admittance and Memberships:

Colorado, 2012

Colorado Bar Association

Family Law Section

Denver Bar Association

Denver Metro Interdisciplinary Committee Member


University of Denver Sturm College of Law, J.D., 2012

The Catholic University of America, B.A., 2009


Excellent Divorce Attorney
Gavin was always available and had a complete grasp of the process. She was thorough and understood the finer points of the law such that she stayed one step ahead of opposing counsel.
Read More
Avvo Rating 5/5
Very professional
Gavin and Allison were wonderful to work with. They have tons of knowledge and they were amazing! They helped me immensely!
Read More
Avvo Rating 5/5
Gavin Halligan
Ms. Halligan and her team did an outstanding job representing me during my divorce. I give them my highest possible recommendation. My divorce had some complicating factors including children, a variety of assets types, and partial ownership of a business which needed to be addressed. Gavin and her team were always knowledgeable and prepared for every step in the process. They were also personable and empathetic which made me feel like they really understood my concerns and priorities while professionally steering me to make decisions that were in my long term best interest.
Read More
Avvo Rating 5/5
Very happy client
Simply put, Gavin made my ex-wife's lawyer look like a guy who got his degree from a mail order catalog! Though he supposedly had been in practice for 30 years, Gavin mopped the floor with him! She countered every demand that my ex and her lawyer made with law that backed my position and she gave me awesome advice on how to respond to their attempts at extortion. In the end, my ex ended up with less than she had before she got greedy.
Read More
Avvo Rating 5/5
My hero...she saved my relationship with my children.
Gavin and I just finished temporary orders for my divorce. We were up against a very high-priced partner with a big firm downtown. I was astounded by the level of detail and preparation on Gavin's part in preparation for our proceedings. We were only allotted 90 Minutes for the entire proceeding and Gavin's ability to appropriately shift and balance that time strategically was brilliant. Her cross examination of the petitioner was methodical and she was able to get the witness to perjure herself on at least three separate occasions through her skillful approach. At the conclusion of our proceeding, our judge crucified the petitioner and awarded ZERO temporary maintenance! Gavin is a cool customer and an assassin in the courtroom when you need her most. I am deeply indebted to her for such savvy and skillful representation.
Read More
Avvo Rating 5/5
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 my calls/emails, and most importantly, represents ME. Gavin has fought hard for my custody rights and has helped me gain the custody I so desperately desired. As a father, you already start in the negative for child custody during a divorce. You must have a strong attorney who knows the law and the system to gain the custody you desire for the relationship you deserve as a parent. Gavin Halligan will help you through this troubling time and make sure your rights are not lost in unnecessary compromises. Gavin’s expertise, professionalism, and strong representation of my interests gave me hope that I would achieve my parenting rights as a father. She continues to help me gain valuable time with my child and I can’t thank her enough for that! I highly recommend Gavin Halligan if you are looking for representation during a divorce or child custody battle.
Read More
Avvo Rating 5/5

Contact Us

(720) 489-3907
Mon-Fri, 8 - 6

If you would like to schedule a consultation, please call us or click on the link below.

If you have any other questions about this firm or how we might be able to help you, fill out the form below and we will respond to you via e-mail or phone as soon as possible.