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Gavin Marie Halligan

Divorce and separation Attorney at Denver, CO

5.0   22 reviews

also known as Gavin Halligan, Gavin M. Halligan


Licensed for 10 years

Virtual consultation available

Free consultation

About Gavin

Learn Gavin’s areas of practice.

5
Practice areas
TOP RATED, COMPASSIONATE, AND STRATEGIC FAMILY ATTORNEY WITH A FOCUS ON COMPLEX HIGH ASSET DIVORCE. IF YOU NEED THE BEST, CALL GAVIN TODAY

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.

Licensed for 10 years
State CO
Status Active
Acquired 2012
Updated 01/13/2023

We have not found any instances of professional misconduct for this lawyer.

Contact Gavin

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

Reviews

5.0 / 5.0
  22 customer reviews
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Posted by Ty | April 11, 2021
This review is from a person who hired this attorney.
| Hired Attorney
Gavin is simply awesome
I am so thankful to have had Gavin, Laura, and the rest of Halligan LLC in my corner during a very difficult process. At the end of the day, I can honestly say that I got almost everything I desired including a great parenting plan that will allow me to have as much time with my son as possible. When it comes to divorce matters, I’m not sure how anyone could choose an attorney not named Gavin Halligan.
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Response from Gavin Halligan April 12, 2021
Thank you so much for your thoughtful words, Ty. Our team prides ourselves on being available and proactive in our communication with our clients. We truly enjoy working with clients like you who fully engage with us throughout the process so as to better reach a satisfactory conclusion. We all wish you the very best!
Posted by Michael | June 21, 2019
This review is from a person who hired this attorney.
| Hired Attorney
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.
Posted by Charles | October 12, 2022
This review is from a person who hired this attorney.
| Hired Attorney
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.
Response from Gavin Halligan October 13, 2022
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 anonymous | April 4, 2022
This review is from a person who hired this attorney.
| Hired Attorney
Excellent Firm
We switched to Gavin and her team during a stressful, high-conflict post-divorce issue last year. My husband and I felt that our previous representation just didn’t have an effective enough game plan in approaching the repeatedly unprofessional tactics from the opposing counsel and in dealing with my high-conflict Ex. Gavin, Heather and Laura made the transition feel seamless, and since then have handled our ongoing family law issues with a high level of professionalism, integrity and acuity. We have found everyone at her firm to be consistently responsive and communicative. So grateful for their excellent work ethic and effective representation.
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Response from Gavin Halligan April 6, 2022
Thank you for taking the time to share your experience with Halligan LLC! Our attorneys bring years of family law experience to every matter, and we strive to achieve the best possible outcomes for our clients in every situation. We pride ourselves on professionalism, responsiveness, and unparalleled client service, and we are delighted to hear this has been your experience working with our firm. Thank you again for the kind words!
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Posted by anonymous | July 8, 2021
This review is from a person who hired this attorney.
| Hired Attorney
Competent and caring
I am really glad that I chose to work with Halligan for my divorce. Ben F. and the whole team there did an excellent job. Was continuously impressed with their professionalism throughout the process.
Posted by anonymous | July 6, 2021
This review is from a person who hired this attorney.
| Hired Attorney
Great Attorney & Team
Jane Michalakes was my attorney for my divorce process. Although I had my doubts in the beginning as I thought she was being "too nice" responding to my ex she came through very professionally in the end and put the ex in their place when she needed to. Jane and her team of paralegals/staff at Halligan LLC did a wonderful job at handling all the required documents, mediation, research, being the middle person with the ex, and etc... I would highly recommend them. Thanks again for all your hard work.
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Response from Gavin Halligan July 6, 2021
Hello, Thank you for the kind words. The firm strives to achieve the best resolution possible for all of our clients, and we strive for integrity and fairness in our conduct. Every member of the firm prides themselves on thoroughness and attention to detail, and we are glad to hear those values were expressed in your experience with us. We are glad to have been able to assist you through this trying time, and the firm wishes you the best. Regards, Halligan LLC
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Posted by Mike | June 22, 2021
This review is from a person who hired this attorney.
| Hired Attorney
Finally a Divorce Attorney who knows what she is doing!!!
I've used 2 other Denver attorneys over the past 5 years for my divorce and both left me wondering how the attorneys actually passed the Bar exam. Gavin has restored my faith that there actually are attorneys who actually know what they are doing. She handled my matter (dispute about travel with my kids) in a professional and fast manner. I can not say enough good things about her and her firm. I will use them in the future if I have any issues with my Ex.....god I hope not.
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Response from Gavin Halligan June 24, 2021
Thank you so much for the kind words, Mike! Halligan LLC prides itself on providing unparalleled expertise and diligent service to every client. The firm is thrilled you were pleased with your experience and we wish you the best.
Posted by Nadette | March 4, 2021
This review is from a person who hired this attorney.
| Hired Attorney
Professional, responsive, and knows your case as if it were her own!
Gavin Halligan is a superb family law attorney, truly one of a kind! She helped me navigate my extremely high conflict divorce starting in 2017, and continues to assist me 4 years later in ongoing post-decree issues without missing a beat; she’ll make you feel like her only client. The legal separation/divorce process is unique to each person, and Gavin gives her valuable, expert advice and genuinely supports you throughout the entire process. Gavin and her team are highly responsive and extremely professional. While you move through what can be a difficult process at times, you can do so with confidence, knowing you have hired the best!
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Response from Gavin Halligan March 4, 2021
Thank you for the kind words, Nadette! We are thrilled to hear you have been happy with your experience working with firm. The firm prides itself on providing unparalleled service to every client and bridging the gap from heartbreak to hope. We are so glad we have been able to assist you throughout this process!
Posted by Isher | February 11, 2021
This review is from a person who hired this attorney.
| Hired Attorney
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 me and calmed me down while helping me get my paperwork in order to ensure I was doing things the right way. Their diligence and dedication to learning my case allowed them to understand my situation from every angle. Ben (the lawyer assigned to my case) was professional and very hands on. He was invested in helping me and his tenacity to ensure the court understood my situation showed throughout the entire process. Their honesty and transparency allowed for me to consider all possible outcomes, but still gave me hope because they worked as hard as they could for my children and I. In the end, they were able to win my case in Colorado and jurisdiction remained in my home state. I recommend Halligan LLC to anyone that wants to feel like more than just a client. Gavin and her team make me feel like I am now part of their family. Thank you!!! A million times!
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Response from Gavin Halligan February 11, 2021
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.
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Posted by anonymous | November 25, 2020
This review is from a person who hired this attorney.
| Hired Attorney
Excellent Divorce Lawyer
Gavin and Laura were nothing but exceptional over the past four months and we were able to come to a MOU with opposing counsel without having to go to mediation or court. It's a given that Gavin is intelligent when you first meet her, but she's easy to work with and always has your best interest in mind. Moreover, with my case, she always appeared to be a step ahead of opposing counsel and was nothing but confident and composed. Her paralegal and staff are wonderful to work with and were always available. To this, Gavin was very easy to reach by phone which isn't always the case with larger firms. If you are researching divorce lawyers, I would highly recommend consulting Gavin Halligan - she'll represent you well and make it happen!
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Response from Gavin Halligan February 11, 2021
I so appreciate hearing this from you. The entire team at Halligan LLC is dedicated to easing our clients through the questions, paperwork, process, and challenges that are unique to each person's situation. We pride ourselves on remaining "a step ahead," as you mentioned, and catching those little details that otherwise might be missed. We're able to reduce the cost to our client's time, reputation and finances by identifying issues early and confronting them head-on.
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Posted by anonymous | June 23, 2020
This review is from a person who hired this attorney.
| Hired Attorney
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 the best choice.
Posted by anonymous | September 21, 2019
This review is from a person who hired this attorney.
| Hired Attorney
Very professional
Gavin and Allison were wonderful to work with. They have tons of knowledge and they were amazing! They helped me immensely!
Posted by Marcus | April 10, 2018
This review is from a person who hired this attorney.
| Hired Attorney
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.
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Posted by Karl | September 15, 2017
This review is from a person who hired this attorney.
| Hired Attorney
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.
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Posted by Kevin | October 28, 2015
This review is from a person who hired this attorney.
| Hired Attorney
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.
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Posted by Gordon | September 10, 2015
This review is from a person who hired this attorney.
| Hired Attorney
Got the job done
Gavin is VERY detailed. She crosses her T's and dots her I's. We gained a lot out of mediation and never ended up needing to go to court.
Posted by Chad | July 23, 2014
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.
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Posted by anonymous | July 11, 2014
Gavin vs. the abusive narcissistic ex...
I had been trapped in an abusive marriage for many years and finally got the courage to leave. As one one figure as soon as I did drop the divorce on him all hell broke lose. Desperate, broke, and and in tears I called many lawyers to see if anyone would be willing to help me. I was relieved when Gavin and the Burnham law firm were very sympathetic to my situation and took me and my case on. Initially I was feeling frustrated at the fact they were so calm in the situation when I was so upset at some of the things I felt he got away with, but soon I saw they had a much bigger picture in mind then I could comprehend at the time. Gavin is very calm, collected, and calculated in her decisions and ultimately won in her strategy unlike the many other impulsive lawyers out there. She is not going to deceive you into thinking you can win something which the judge would not ultimately grant in court, as many lawyers will in order to profit off of peoples emotions in such a situation. Thank you Gavin!
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Posted by Benji | May 22, 2014
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, booming, 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!
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Posted by anonymous | May 16, 2014
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.
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Cost

Rates
  • Free Consultation 30 minutes
  • Retainer Always
Payment methods
Cash, Check, Credit Card

Resume

AVVO RATING 10.0 (Superb)

Work Experience

  • Attorney
  • Halligan LLC
  • 2018 - Present
  • Volunteer Victim's Advocate
  • Federal Heights Police Department
  • 2012 - Present
  • Partner
  • The Burnham Law Firm, P.C.
  • 2014 - 2017
  • Senior Associate Attorney
  • The Burnham Law Firm, PC
  • 2013 - 2014
View all work experience

Education

  • University of Denver Sturm College of Law
  • JD - Juris Doctor
  • 2012
  • Catholic University of America
  • BA - Bachelor of Arts
  • 2009

Legal Cases

  • In re the Parental Responsibilities Concerning B.C.B.
  • In re Castillo
  • Successful decision

Associations

  • Association of Family and Conciliation Courts
  • Member
  • 2019 - Present
  • Denver Metro Chamber of Commerce
  • Gold Committee Member
  • 2019 - Present
  • Metropolitan Denver Interdisciplinary Committee
  • Member
  • 2018 - Present
  • Colorado Bar Association
  • Member
  • 2014 - Present
  • Denver Bar Association
  • Member
  • 2014 - Present
View all associations

Languages Spoken

  • English
  • Spanish

Honors and Awards

  • Rising Star
  • SuperLawyers
  • 2022
  • Rising Star
  • SuperLawyers
  • 2021
  • Rising Star
  • SuperLawyers
  • 2020
  • Rising Star
  • Super Lawyers
  • 2019
  • 10 Best in Colorado
  • American Institute of Family Law Attorneys
  • 2019
  • Top 40 Under 40
  • The National Advocates
  • 2018
  • Top 40 Family Lawyer Under 40 in the State of Colorado
  • The American Society of Legal Advocates
  • 2017
  • Nationally Ranked Top 10 Attorney Award
  • National Academy Of Family Law Attorneys
  • 2017
  • Top 40 Under 40
  • The National Advocates
  • 2017
  • Top 40 Lawyers Under 40
  • American Society of Legal Advocates
  • 2016
  • Top 40 Under 40
  • The National Advocates
  • 2016
  • Top 10 Attorneys Under 40
  • National Academy Of Family Law Attorneys
  • 2016
  • Top One Percent
  • National Association of Distinguished Counsel
  • 2015
  • Senior Associate
  • The Burnham Law Firm, PC
  • 2014
  • Partner
  • The Burnham Law Firm, P.C.
  • 2014
View all awards

Publications

Speaking Engagements

Attorney endorsements

Received (15)
Given (20)
Endorse Gavin
Unknown Attorney | 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."
Family Attorney | 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."
Family Attorney | 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."
Family Attorney | 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."
Family Attorney | 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."
Family Attorney | 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."
Family Attorney | Feb 27
Relationship: Fellow lawyer in community
"I endorse this lawyer. She can help you with your family law case."
Family Attorney | 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."
Family Attorney | 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."
Family Attorney | 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."
Family Attorney | 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."
Divorce and separation Attorney | Aug 07
Relationship: Co-worker
"Gavin is incredibly intelligent and devastating in the courtroom. She is definitely an attorney to have in your corner."
Family Attorney | 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."
Unknown Attorney | Mar 18
Relationship: Co-worker
"Gavin is skilled, knowledgeable, and dedicated. I endorse this lawyer."
Unknown Attorney | 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."
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