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Small practice, BIG RESULTS Bold, Solid, and Personally Dedicated to Every Client.

Family Lawyers in the Denver Metro and Northern Colorado Area

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37+

Years of experience

What Our Reviews Say About Us

The experienced team you are looking for

At Tanis McGonegal Family Law, P.C., our firm brings together  37 years of experience crafting highly effective solutions for our clients. We achieve positive results through skilled representation, patience, and a personal commitment to every client.

Your Dedicated Legal Partner

You will work with a designated lawyer at the firm and not have to go through  paralegals or legal assistants to get your needs met, case managed, or questions answered.

Strength in Collaboration

There is always a named partner available for your assigned lawyer to use as a second opinion or added perspective.

Decades of Experience

Our firm brings together more than 37 years of experience, but we are more than just great lawyers trying to achieve the best legal outcome. We are equally dedicated to your social, emotional, and financial wellbeing. 

Our Services

Divorce

Alimony

Child Custody

Mediation

Child Support

Parent Coordinator

Divorce2

Divorce

At Tanis McGonegal Family Law, P.C., we approach family law with both compassion and rigor. We understand every decision during a divorce matters, and we are here to provide practical guidance tailored to your unique concerns. 

Alimony2

Alimony

Whether you are seeking or opposing spousal support payments, our experience and skill can help secure a favorable outcome. We understand the intricacies of alimony and will advocate effectively on your behalf.

ChildCustody2

Child Custody

We navigate child custody complexities with empathy and experience. Our attorneys prioritize the well-being of your children and advocating for fair custody arrangements tailored to your family’s needs.

Mediation

Mediation

At Tanis McGonegal Family Law, P.C., we understand that resolving family law disputes through litigation can be stressful, time-consuming, and costly. Mediation offers an alternative approach, allowing you and your spouse to work collaboratively towards mutually beneficial solutions.

ChildSupport2

Child Support

Securing the right level of child support is crucial for your children’s well-being. We will work diligently to ensure child support arrangements are fair and adequate.

Partent Coordinatior2

Parent Coordinator

At Tanis McGonegal Family Law, P.C., we understand that co-parenting after a divorce can be challenging. Disagreements about parenting decisions can lead to ongoing conflict, which can be stressful for both parents and children. Our Parent Coordinator Decision-Making Services are designed to help you navigate these challenges and foster a cooperative co-parenting relationship.

Divorce2

Divorce

At Tanis McGonegal Family Law, P.C., we approach family law with both compassion and rigor. We understand every decision during a divorce matters, and we are here to provide practical guidance tailored to your unique concerns. 

Alimony2

Alimony

Whether you are seeking or opposing spousal support payments, our experience and skill can help secure a favorable outcome. We understand the intricacies of alimony and will advocate effectively on your behalf.

ChildCustody2

Child Custody

We navigate child custody complexities with empathy and experience. Our attorneys prioritize the well-being of your children and advocating for fair custody arrangements tailored to your family’s needs.

Mediation

Mediation

At Tanis McGonegal Family Law, P.C., we understand that resolving family law disputes through litigation can be stressful, time-consuming, and costly. Mediation offers an alternative approach, allowing you and your spouse to work collaboratively towards mutually beneficial solutions.

ChildSupport2

Child Support

Securing the right level of child support is crucial for your children’s well-being. We will work diligently to ensure child support arrangements are fair and adequate.

Partent Coordinatior2

Parent Coordinator

At Tanis McGonegal Family Law, P.C., we understand that co-parenting after a divorce can be challenging. Disagreements about parenting decisions can lead to ongoing conflict, which can be stressful for both parents and children. Our Parent Coordinator Decision-Making Services are designed to help you navigate these challenges and foster a cooperative co-parenting relationship.

Convenient Offices in:

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Broomfield (Interlocken), CO  80021

11001 West 120th Avenue Suite 400

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Boulder, CO 80301

4845 Pearl East Circle Suite 101

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Louisville, CO 80027

357 S. McCaslin Blvd., Suite 200

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Longmont, CO 80501

1079 S. Hover Street, Suite 200

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Lakewood, CO 80226

355 S. Teller Street #200

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Cherry Creek Denver, CO 80246

501 S. Cherry Street 11th Floor

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Northglenn, CO 80233

11990 Grant St., Suite 550

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Downtown Denver, CO 80203

1580 N. Logan Street, 6th Floor Suite #600

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DTC Greenwood Village, CO 80111

7350 E. Progress Place Suite 100

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Fort Collins, CO 80528

2580 East Harmony Road Suite 201

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Golden, CO 80401

14143 Denver West Parkway Suite 100

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Southlands Aurora, CO 80016

6105 S. Main Street Suite 200

Commitment To Our Clients

Our reputation for providing effective representation was earned by caring for our clients and what they are going through. We get to know our clients and their vision for resolution of their case and for the future after their matter is resolved. We use that knowledge to tailor our representation and case strategy to each client, and it is our commitment to provide you with the individualized help you deserve.

Need help with your case?

Don’t navigate your family law case alone. We are here to provide you with the legal advocacy and compassionate support you need. Contact us today to schedule a consultation tailored to your unique circumstances.

What our reviews say about us

Jon Mead

From Google Reviews

Michael was extremely pleasant to work with. Even though he was representing my ex-wife in a divorce settlement, he maintained a professional composure and worked through all the details and we were able to come to an amicable agreement and avoid extensive court costs.

Deven

From Google Reviews

Michael was an absolute doll. He laid out every option that is available to me. He was positive and sure of the job he could do. He sweet and empathetic to my situation. I felt that he would give me the time I needed to figure out what I was best for me and not rush me. He made me feel safe. Thank you for the consult!

Jillian Goodman

From Google Reviews

Great experience doing my prenuptial agreement through Michael McGonegal! If you’re looking for the same service I believe on the initial contact form you want to select the option for divorce law.
Very friendly and professional, and great at breaking down and explaining the legalese for me to understand. He made it very clear what my options were and why he was advising one way or another. He kept me in the loop for the whole process and communication with my partner’s attorney.
And we were able to do all of this completely remotely! So I never needed to visit his office and we were able to do everything we needed by phone and over email.
Hopefully I’ll never need their services for divorce or family law, but if I did I’m confident I’d be well taken care of.

Alison Griffin

From Google Reviews

While divorce is never easy, my ex-husband and I have repeatedly found Lenny Tanis to be a great resource for us over the years as we have navigated the dynamics of a changing co-parenting situation. Lenny is knowledgeable, kind and patient. He has been a trusted resource to our family over the last 8 years. I would highly recommend his mediation services to any couple navigating the complexities of a separation, divorce and/or co-parenting relationship.

Ron Luedtke

From Google Reviews

If you are looking for a standup and personable lawyer, Michael McGonegal is your guy!! Michael was able to help me through one of the most difficult times in my life. He was level-headed, hard-working and extremely patient! Furthermore, Michael consistently kept me apprised of our progress and any tasks that I needed to complete. I believe you would be hard-pressed to find better legal representation in the Denver metro area! Thank you, Michael McGonegal!! Ronald Luedtke

Robyn Spann

From Google Reviews

I would highly recommend Lenny Tanis. During our initial phone call he answered all of my questions and immediately put me at ease. His guidance and kindness are so appreciated as I navigated a divorce. Having someone knowledgeable like Lenny who had my back during this time is something I will always be very grateful for.

Kaylee Dennison

From Google Reviews

Michael was absolutely wonderful to work with. I love his background of working with children as well. Definitely would recommend! He knows what he’s talking about!

Daniel Spencer

From Google Reviews

Mike comes from a counseling background and it shows in his work. Family law is very emotional and his approach is like a mediator with a JD. It is a great combination that works in the best interest for your your family’s long term happiness. We are very pleased with his approach and the results.

Matthew Hurley

From Google Reviews

Professional, responsive and caring. Super clear about costs and navigating separation. Even had some hiccups with communication about retainer and Michael called me personally to resolve. Will use again for second marriage. JK JK. Thank you Michael!

Mary Turner

From Google Reviews

Michael came into the middle of a highly contentious ongoing case, and I had seen the inside of a courtroom on too many occasions. He was able to negotiate so well with the opposing attorney that we were saved from having to take any court action at all. We have so far been able to resolve the issue in the best interest of our daughter. I have every confidence, though, that if it is necessary to go to court again, Michael will work tirelessly to get the best possible outcome. He has been extremely fair with his pricing, and has made himself available even when out of town on vacation. I appreciate Michael’s dedication and integrity so much!

Update 12/5/22-
My case has been resolved without having to see the inside of a courtroom, and absolutely serves the best interest of my child. That is all thanks to Michael’s level-headed and forward-thinking negotiations with the opposing attorney, as well as his dedication to a solution. I can’t say enough about his genuine compassion in what is usually a tough and emotional situation.

Update 3/6/23
I felt the need to update this review because, yet again, the help that Michael gave was immeasurable. I had to call him about a child support matter, and his common sense direction saved me a ton of grief, and again set this case in the right direction. I’m continually amazed at Michael’s responsiveness, as well as his genuine integrity. I see a lot of other reviews that mention this, so I know that he delivers this consistently to his clients. I have to say that he has single-handedly restored my faith in the legal/family law profession!

Caroline Fullmer

From Google Reviews

Lenny has been my lawyer for 3 years. He has been instrumental in helping me navigate and ultimately succeed in a high-conflict child custody case.

Lenny took the time to really understand me, my concerns, my goals, and listen to what is in the best interest for my child.

His advice is sound. Lenny has practiced a long time in the Broomfield area and thus is well versed in knowing the Judges/Magistrates, which aided in the preparation for my hearing. We felt like a team.

I highly recommend Lenny services.

Sue Howe

From Google Reviews

I cannot say enough good things about my experience with Michael McGonegal and his firm. I retained them late in my case. Despite the odds, Michael worked very hard to get every important detail from the beginning of the case. He seemed to be as passionate about my case as I was, in fact I know he was. His knowledge and quick work of filing Motions emailing the appropriate people etc. brought me up to speed. I felt very confident moving forward with Michael as my attorney. His skills in the Courtroom at the hearing were impressive to say the least. Michael McGonegal is SMART, SHARP, AND PROFESSIONAL. The case is ending, and Michael has withdrawn at my request, however, he continues to communicate with me until the conclusion. In working with Michael McGonegal, I found him not only to be an excellent attorney but an excellent person. He was not only my lawyer but at times was my therapist, my advocate, my mentor, and he was always there for me and continues to be to this day.

TJ Fox

From Google Reviews

When I found myself without legal representation less than 24 hours before my initial status conference, Michael McGonegal returned my call almost immediately. Having very little time to prepare, he got right to work and had everything ready to go the next morning. By the time my divorce had finalized months later, Michael had essentially managed my case single-handedly, keeping me in the loop every step of the way. His approach was assertive, persistent, and strategic, which is everything you could ask for in a divorce attorney. Not only was I awarded the better part of the settlement, but he did it all without me ever having to appear in court – thank you again for everything!

Colorado Mtn Mama

From Google Reviews

I have worked with Lenny for over four years relating to my divorce and subsequent related issues. I have consistently found Lenny to be extremely knowledgeable about family law, impeccably ethical, genuinely concerned for my and my child’s well being as well as being very easy to work with. Lenny has gone out of his way to find legally and ethically creative solutions for my legal issues. In court, Lenny is prepared and thoughtful throughout court proceedings. I can very honestly say that if it wasn’t for Lenny, I most likely would not have had such an incredibly beneficial outcome of my divorce and in my other family law issues. I would strongly recommend anyone to Lenny. He is well liked, well connected and very well respected in the community.

Sasha Lewis

From Google Reviews

Michael was extremely kind and helpful. Highly recommend.

Deena Edmonds

From Google Reviews

Lenny is an amazing lawyer and person. He has helped me several times and is always caring and compassionate. On top of his above top notch skill he has been thoughtful of my financial situation as well, always giving me options if there is a way to save money, not something you find in many lawyer so that tells you a lot about what a wonderful person he is. I have and will continue to tell everyone I know in need of legal service to go to him. I can’t thank him enough for what he has done for me, my mom and my boys!!!!

Candace Newcomb

From Google Reviews

It was great working with Michael on my divorce. He kept me up to date on all the paperwork that I needed to do and followed up on anything I didn’t get back to him on. Overall it was a much lower stress ordeal due to his help.

Sanam Pejuhesh

From Google Reviews

Lenny Tanis has been my attorney for almost 5 years, the majority of my child’s life. I respect him fully and would highly recommend Lenny. Lenny is extremely knowledgable about the law, which I have learned isn’t always the case with attorneys. With his 30+ years of experience in family law, his genuine caring and concern for children, and his own role as a father, Lenny truly, deeply cares and goes above and beyond for his clients. He is assertive, yet thoughtful and kind. As a single parent, embroiled in a challenging legal system that doesn’t always get it, we can feel extremely disempowered and even helpless. Lenny has always made me feel like he has my back and will stand up for us and fight for what is best for my daughter every step of the way. He also goes far beyond any other attorney in attending conferences, trainings and workshops to educate himself on the impact of divorce and conflict on children, so that he can do the right thing for kids. Many family attorneys simply don’t get the impact of conflict and custody arrangements on children. Lenny does. He also does what he needs to do in my case, but doesn’t drive up the bill unnecessarily and is very respectful of the financial impact this has–this isn’t always true with attorneys.
I can’t recommend Lenny highly enough.

Shane Moreland

From Google Reviews

Michael Is an honest attorney and provides great legal insight.

A B

From Google Reviews

Unfortunate events and circumstances present themselves in all of our lives. Rarely are these ever considered to be “opportune” or “timely” in respect to our needs and expectations. When the challenges and struggles do arise, as they had in my situation over 4 years ago, I could not help but to feel lost, ashamed, and abandoned by the once very happy and comfortable life that I lived.

In the worst cases, these events may be compounded by the feeling of not having anyone at your side who will fight for you. It feels as if you’re alone in the midst of a feverish war and not but a single man stands to face the oncoming army. This is exactly where I was when I first hired Michael McGonegal from Tanis and McGonegal Family Law to represent me in my Broomfield and Jefferson County cases.

I have gone through some of the most challenging and nightmarish experiences I could ever imagine, engaging in ongoing and unwelcomed court battles with my ex spouse. As a single father working only for the peace that comes from stability and equanimity, and after having been through a long painful divorce process, I’ve been continually engaged in pleas to the court on both the egregious violations of court orders by my ex spouse and in defense against the many, disturbing accusations made against me. While only having the time to raise a daughter while trying to maintain a peaceful home and work to provide a continuous income for me and my little girl, the confusion and frustration from the ever growing legal demands became overwhelming.

This is where Michael McGonegal has been a real blessing to me and my daughter. Not only does Michael take a measured and tempered approach to seemingly all situations in his purview, he also does not hesitate to shoot straight, give honest and undiluted feedback, and seeks to never set unrealistic expectations, not for wont of providing comfort or false consolation.

As a man of integrity, Michael may tell you the hard truth to hear but he provides it for the critical intention of helping prevent any false sense of security about very serious matters and to help hone focus on the most actionable items available. I have been extremely grateful for the honest, direct, and empathetic approach that Michael has taken with my cases.

As a client of a family legal firm, all potential engagements are extremely personal, highly sensitive and the emotional investment that’s involved becomes saturated down into every pore of every court file you see. Michael seemingly understands these very important nuances to the client/attorney relationship. While being a direct and a no-nonsense legal representative, he also takes every opportunity to digest and understand the background and emotions of his clients and their cases.

I often felt very alone, confused, angry, and sorrowful over the hurdles of this recent course of life involving my family and my daughter, but I always had comfort and confidence in knowing that I was getting the best attention and treatment that anyone could be provided when I was working with Michael McGonegal in my family cases out of Broomfield, CO.

Thank you very much, Michael, for all of your ongoing dedication and support in these extremely difficult times. You have helped to bring a great deal of relief while I’ve been enduring this very personal and painful legal process.

I highly recommend Michael McGonegal at the Tanis and McGonegal Family Law Firm if you live in or around the Broomfield/Westminster area, or wherever they may provide legal counsel. 10/10, 5 Stars, 4 out of 4!

Thank you again!!

Joel James

From Google Reviews

Michael is a very good Attorney. He is knowledgeable, compassionate, and honest. He worked very hard to get me the best settlement possible, and I would highly recommend his services if you find yourself in need of a Divorce Lawyer.

Heidi Feichtinger

From Google Reviews

Lenny was very kind, compassionate and knowledgeable. He worked hard with me in order to get me a fair settlement in my divorce proceedings, in spite of a very adversarial situation.

Shana Mugg

From Google Reviews

Lenny was so incredibly helpful and compassionate while we were navigating the annulment of my elderly father-in-law’s marriage. The whole process went very smoothly and quickly. I don’t think we would have been able to manage this difficult situation without Lenny’s advice, support and knowledge of the legal system.

Heather Hurd

From Google Reviews

Wonderful experience! My husband and I had the pleasure of working with Kate Sereff on two separate occasions. Each time she was incredibly knowledgeable, very friendly, and overall a wonderful lawyer. The entire staff made us feel as “at home” as we possibly could. Would recommend visiting this firm to anyone seeking legal assistance!

Ryan Murphy

From Google Reviews

They were very informative and had my best interest at the heart of it all. Michael was on top of things and made sure he answered any and all questions. I would highly recommend these guys for any family law issues that you have.

Connie Gallegos

From Google Reviews

I have used the services of Tanis and McGonegal multiple times with success. I am very happy for the help they provided my family over the years. Please consider using their services. I would definitely choose them again for any of my future lawyer needs.

Lisa Owen

From Google Reviews

I tried filing for my divorce by myself at first and it got denied because I wasn’t sure on the paperwork that was needed. I had the pleasure of working with Michael and explained everything and he did all of the leg work for me. Now I’m in the clear and so thankful for his help.

Chad Stroh

From Google Reviews

Michael is one of the best in the business and always treated me fairly with his price! know several people who have used him and they all really liked him.

Mike Little

From Google Reviews

I had a great experience with Lenny and the entire office. Not only is he an outstanding lawyer, he is also a very caring and compassionate person.

m j

From Google Reviews

Lenny was fantastic to work with, and provided excellent guidance through the whole process!

Juliet Rosenthal

From Google Reviews

Lenny and Michael Are really kind and great lawyers. Highly recommend.

Jennifer Flood

From Google Reviews

Great communication and professionalism. I will work with these guys again!

Chad Petersen

From Google Reviews

A fantastic lawyer.