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.
Mathew Hurley
Facing a divorce or custody fight and feeling lost?
We understand the emotional toll and complex decisions you’re facing.
Family Lawyers in the Denver Metro and Northern Colorado Area
Let Tanis McGonegal Law guide you with care, expertise, and support.
With Over 37 Years of Experience
Book a Free 20-minute consultation, we can help.
Broomfield (Interlocken)
11001 West 120th Avenue Suite 400 Broomfield, CO 80021
Boulder
4845 Pearl East Circle Suite 101 Boulder, CO 80301
Louisville, CO
357 S. McCaslin Blvd. Suite 200 Louisville, CO 80027
Longmont
1079 S. Hover Street Suite 200 Longmont, CO 80501
Lakewood
355 S. Teller Street #200 Lakewood, CO 80226
Cherry Creek Denver
501 S. Cherry Street 11th Floor Denver, CO 80246
Northglenn
11990 Grant St. Suite 550 Northglenn, CO 80233
Downtown Denver
1580 N. Logan Street, 6th Floor Suite #600 Denver, CO 80203
DTC Greenwood Village
7350 E. Progress Place Suite 100 Greenwood Village, CO 80111
Fort Collins
2580 East Harmony Road Suite 201 Fort Collins, CO 80528
Golden
14143 Denver West Parkway Suite 100 Golden, CO 80401
Southlands Aurora
6105 S. Main Street Suite 200 Aurora, CO 80016
Trusted Support When It Matters Most
Family legal disputes are among life’s toughest challenges, often feeling overwhelming—marked by endless conflict, emotional exhaustion, and the fear of losing what matters most. A solid legal strategy to protect your future and your family’s well-being is essential.
At Tanis McGonegal Law, we provide compassionate, effective family law representation. We tailor strategies to meet your unique needs, guiding you through every step with care and expertise.
Commitment To Our Clients
Personal Attention
You’ll work directly with Leonard or Michael. No paralegals—just personalized guidance from experienced attorneys.
Personal Attention
You’ll work directly with Leonard or Michael. No paralegals—just personalized guidance from experienced attorneys.
Personal Attention
You’ll work directly with Leonard or Michael. No paralegals—just personalized guidance from experienced attorneys.
Personal Attention
You’ll work directly with Leonard or Michael. No paralegals—just personalized guidance from experienced attorneys.
About Tanis McGonegal
Our firm brings together +37 years of experience crafting effective solutions for our clients. We achieve positive results through skilled representation, patience, and a personal commitment to every client.
Before becoming an attorney, Lenny Tanis worked in retail and restaurant management. His desire to make a meaningful impact led him to pursue law, graduating with honors from the University of Denver. A dedicated family man, Lenny has offered expert guidance since 1996 in cases of divorce, custody, and support.
Michael McGonegal’s background in social work and child protective services drives his compassionate approach to family law. A Thomas Jefferson School of Law graduate, he joined Tanis in 2018, advocating for clients with empathy, integrity, and expertise.
Behind the Numbers: The Impact of Family Matters
36-39% of marriages in the U.S. end in divorce, affecting millions of families each year. Emotional and financial struggles often follow.
An estimated 900,000 children are impacted annually by custody battles. Many face long-term emotional distress during crucial developmental years.
We’re here to help
Don’t Navigate Your Family Case Alone
Book a Free 20-minute consultation
What We’ll Cover In Your Free 20-Minute Consultation
- Get an overview of the legal process for your family situation.
- Review potential next steps and options available to you.
- Learn quick tips to reduce stress on your family.
- Receive guidance on your immediate path forward.
Don't hesitate—book your consultation now!
With our proven expertise, you’re not alone. We’ve helped hundreds
find a way through difficult family matters—and we’re ready to do
the same for you.
Let’s take the next step together.
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