Gavin M. Halligan

PRO

Gavin M. Halligan

4.9
Rating: 10.0

Licensed for 13 years

Divorce and separation Lawyer at Denver, CO
Practice Areas: Divorce & Separation, Family, Child Custody ... +3 more

2535 17th Street, Suite C, Denver, CO

Virtual Consultation Available

Free Consultation

About Gavin

Biography

The Right Divorce Representation Matters. I Can Help You Protect What You Value Most.

Top rated, compassionate, and strategic family attorney with a focus on complex high asset divorce. If you need the best, call Gavin today

Compassion & Experience in the Most Challenging Family Cases.

Experienced and Compassionate Family Law Attorney Ready to Fight For Your And Your Family.

Helping Families – Resolving Disputes.

Practice Areas

6

Practice Areas

Divorce and Separation 50%

13 years

50%
Family 20%

13 years

20%
Alimony 10%

13 years

10%
Child Custody 10%

13 years

10%
Appeals 5%

Family Law Appeals

13 years

5%
Uncontested Divorce 5%

13 years

5%

Fees and Rates

Cost

Free Consultation

$0 first 30 minutes

Retainer

Always


Payment Methods

  • Cash
  • Check
  • Credit Card

Licenses

Licensed in Colorado for 13 years

State: Colorado

Acquired: 2012

Active

No misconduct found

Location

Halligan LLC

2535 17th Street, Suite C, Denver, CO, 80211

halliganllc.com

Gavin M. Halligan's Reviews

Avvo Review Score

4.9 /5.0

27 Client Reviews

Filter Avvo Reviews (27) Refine reviews to match your needs. Use the filters to quickly surface reviews that align with your case or priorities.

Showing 6 - 10 of 10 reviews | Practice Area Knowledge

Posted by anonymous | June 23, 2020 | Hired Attorney | Divorce & Separation

Excellent Exerpeince

Gavin went above and beyond in helping me through my divorce. Gavin always had my best interest in mind and made the process very easy given the circumstances. What stood out one day 1 was how she helped me through the options in our consultation. This is why I hired her and it proved to be th...e best choice.

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... 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.

Posted by Karl | September 15, 2017 | Hired Attorney | Divorce & Separation

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 he...r 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.

Posted by Benji | May 22, 2014 | Family

Don't Let Her Good Looks Fool You...This Attorney is an Assassin!

I found Burnham Law online and after reading all of their reviews I made the decision to meet with Todd Burnham in addition to three other attorneys I planned to meet that day. I met Todd at his Erie office (apparently he has a downtown Denver office) and I was blown away. Erie is a beautiful, boom...ing, town outside Boulder and his office is beautiful. He met me wearing jeans, t-shirt and flip flops. I felt at ease. In meeting Todd it became apparent that this guy was meant to be a family law attorney. His background, his competitive Division I athletics background, and actually his references to his own family made me feel really...protected. He got it. He understands the whole "field" of this area and approaches it from a strategy standpoint and not a legal standpoint and always about my children and what they needed. He convinced me, in a very short time, that my youngest child DEVELOPMENTALLY was better suited in the SHORT TERM to be with his Mother as we transition and focus on the eventual 50/50 parenting time. That was the goal...a developmentally appropriate plan. I loved it. We later, much later actually, started talking about the finances of the marriage. He quickly learned that the case was a higher asset case. He interrupted me and said "Hold on...let me get Gavin." He did something on his computer and she appeared from the adjacent room and at first it didn't make sense that this attractive pro volleyball looking woman fit in the room let alone a divorce lawyer's office. Todd explained that Gavin was his Senior Associate, that she excelled at such a fast rate that he had to give her a cool title, and that she was always put on the high asset/high conflict cases with Todd but that they don't double bill. You get two lawyers collaborating and strategizing, and what I soon learned was these aren't just any lawyers. These lawyers think to a point of obsession, and they think alike. While Todd comes across as a smooth and seasoned yet younger trial attorney/blue collar "this is the deal" person in shorts and flip flops, Ms. Halligan was the opposite: a suit and skirt. She sat on the couch in Todd's office and he sat behind his desk and they just had a conversation together about my case basically answering each other's questions with them ending together with an uneventful thud...and then Todd turned back to me and proceeded to lay out a plan of action that focused on my daughter and son, fairness to my wife, and fairness to me. Gavin then completed the picture, outlined the financials and our approach and gave me deadlines and dates, and in surgical detail explained scenarios that I didn't even think of thinking of...all of which made me feel both VERY SCARED for my financial future and VERY RELIEVED that I was in this office. I signed the agreement, paid them 5K, and let them get to work. Without getting into my personal life, I can say that I didn't see Todd again but I spoke with him often on calls with Gavin. Gavin was my lawyer for everything and she was so confident, reassuring and so skilled (and so young) that I honestly was nervous a lot but a quick call with Todd fixed that. Towards the end Gavin would joke with me "should we call Todd?" and the answer was a resounding NO! Why? Because she was awesome. She was clearly well-trained, confident and knew the law cold. The opposing lawyer was condescending, rude and increasingly desperate as time went on. And it was awesome to see her juggle other cases that Todd was putting her on simultaneously...and she managed it amazingly and effortlessly. My case ended almost exactly as they predicted. My children are as good as they can be post divorce. My ex wife and I together hate her former attorney so we have some common ground there, and we have a workable parenting plan. Burnham Law is expensive compared to other firms but, this team was worth every penny. Hire them and sleep well!

Posted by anonymous | May 16, 2014 | Child Custody

Child Custody Case

Gavin helped me with my child custody hearing. She is very compassionate and truly cares about her clients. I didn't feel like I was just another case that needed representation. Anytime I called her she helped me with all issues, I never felt rushed or a bother. Gavin was very organized, timely, and... prompt and was able to help me get what I deserved. I highly recommend Gavin and the Burnham Law team. They are great at what they do and care about their clients.

See All Client Reviews

Gavin M. Halligan's Lawyer Endorsements

Endorse Gavin
Brian J. Bagley headshot
Brian Bagley

Unknown lawyer | May 13

Relationship: Opposing Counsel on matter

"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."

Trista McElhaney headshot
Trista McElhaney

Family lawyer | May 08

Relationship: Co-worker

"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."

Jane Grace Michalakes headshot
Jane Michalakes

Family lawyer | Aug 24

Relationship: Worked for lawyer

"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."

Laurence I. Gendelman headshot
Laurence Gendelman

Family lawyer | Apr 19

Relationship: Fellow lawyer in community

"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."

Max Austin Montag headshot
Max Montag

Family lawyer | Mar 27

Relationship: Fellow lawyer in community

"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."

Emily Ann Gordon headshot
Emily Gordon

Family lawyer | Dec 22

Relationship: Fellow lawyer in community

"I endorse this lawyer. Gavin is very skilled and works incredibly hard to obtain the best possible result on behalf of her client."

Brian Elliott Arnold headshot
Brian Arnold

Family lawyer | Feb 27

Relationship: Fellow lawyer in community

"I endorse this lawyer. She can help you with your family law case."

Mary Nathan headshot
Mary Nathan

Family lawyer | Sep 25

Relationship: Fellow lawyer in community

"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."

Jennifer Paulette Scott headshot
Jennifer Scott

Family lawyer | Sep 22

Relationship: Co-worker

"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."

Zachary John Daigle headshot
Zachary Daigle

Family lawyer | Sep 21

Relationship: Co-worker

"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."

Claire Elster headshot
Claire Elster

Family lawyer | Sep 19

Relationship: Co-worker

"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."

Stephanie Ann Randall headshot
Stephanie Randall

Divorce and separation lawyer | Aug 07

Relationship: Co-worker

"Gavin is incredibly intelligent and devastating in the courtroom. She is definitely an attorney to have in your corner."

Todd C. Burnham headshot
Todd Burnham

Family lawyer | May 03

Relationship: Supervised lawyer

"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."

Andrew J. Price headshot
Andrew Price

Unknown lawyer | Mar 18

Relationship: Co-worker

"Gavin is skilled, knowledgeable, and dedicated. I endorse this lawyer."

Jeremy T. Hildebrand headshot
Jeremy Hildebrand

Unknown lawyer | Jan 15

Relationship: Fellow lawyer in community

"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."

View All Endorsements
Claire Marie Lopez-Jauffret headshot
Claire Lopez-Jauffret

Divorce and separation lawyer

Michelle L. Searcy headshot
Michelle Searcy

Divorce and separation lawyer

Kathryn Mccord Beck headshot
Kathryn Beck

Family lawyer

Heather Marie White headshot
Heather White

Family lawyer

Jane Grace Michalakes headshot
Jane Michalakes

Family lawyer

Benjamin Kellam Floyd headshot
Benjamin Floyd

Family lawyer

Max Austin Montag headshot
Max Montag

Family lawyer

Allison Boschert headshot
Allison Boschert

Family lawyer

Randall Gause headshot
Randall Gause

Personal injury lawyer

Jeffrey Scott Wittebort headshot
Jeffrey Wittebort

Personal injury lawyer

Brian J. Bagley headshot
Brian Bagley

Family lawyer

Trista McElhaney headshot
Trista McElhaney

Family lawyer

Jennifer Paulette Scott headshot
Jennifer Scott

Family lawyer

Claire Elster headshot
Claire Elster

Criminal defense lawyer

Zachary John Daigle headshot
Zachary Daigle

Divorce and separation lawyer

Todd C. Burnham headshot
Todd Burnham

Family lawyer

Andrew J. Price headshot
Andrew Price

Family lawyer

Laura E. Liss headshot
Laura Liss

Business lawyer

Experience

Rating:  10.0 (Superb)

Honors

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.

Work Experience

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

Associations

2019 - Present

Association of Family and Conciliation Courts

Member

2019 - Present

Denver Metro Chamber of Commerce

Gold Committee Member

2018 - Present

Metropolitan Denver Interdisciplinary Committee

Member

2014 - Present

Colorado Bar Association

Member

2014 - Present

Denver Bar Association

Member

Sample of Legal Cases

In re the Parental Responsibilities Concerning B.C.B.

In re Castillo

Successful decision

See More Legal Cases

Education

2012

University of Denver Sturm College of Law

JD - Juris Doctor

2009

Catholic University of America

BA - Bachelor of Arts

Speaking Engagements

2025

Family Law Institute

2025 Eagle County Family Law Conference Attendee FLI/CBA

2014

Burnham Law's Child-Focus Symposium Keeping Children Safe from Predators

Publications

2014

Languages

English

Spanish

Activity

Avvo Rating

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Avvo Rating Levels
10.0 - 9.0 Superb8.9 - 8.0 Excellent7.9 - 7.0 Very Good6.9 - 6.0 Good5.9 - 5.0 Average4.9 - 4.0 Concern3.9 - 3.0 Caution2.9 - 2.0 Strong Caution1.9 - 1.0 Extreme Caution