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Your Trusted Family Law Partner in Denver
Tanis McGonegal Family Law has built a reputation for delivering effective legal representation rooted in compassion and rigorous advocacy. With over 37 years of combined experience, our attorneys specialize in family law, offering tailored solutions for divorce, alimony, child custody, mediation, and child support. We prioritize understanding each client's unique circumstances to craft strategies aligned with their vision for resolution and future stability. Our firm emphasizes direct attorney-client collaboration, ensuring clients work closely with their designated lawyer rather than intermediaries.

A named partner is always available for consultation, providing added expertise and perspective. Beyond legal outcomes, we are committed to supporting clients' social, emotional, and financial well-being throughout the process. Our practice spans Adams, Arapahoe, Boulder, Broomfield, Jefferson, Larimer, and Weld counties, serving individuals and families with personalized legal care.
Services
Divorce Alimony Child Custody Mediation Child Support
Highlights and features
  • We offer over 37 years of combined experience in family law.
  • Clients work directly with their assigned attorney, not intermediaries.
  • A named partner is always available for second opinions or added perspective.
  • We prioritize clients' social, emotional, and financial well-being alongside legal outcomes.
  • Our firm serves multiple counties across Northern Colorado and the Denver Metro area.
What people say
Compassionate support Knowledgeable attorneys Personalized approach Effective representation Responsive communication
Services
Divorce
Our divorce services combine legal expertise with compassionate guidance to navigate complex family transitions. We help clients address asset division, spousal support, and child-related matters while prioritizing long-term stability. Our attorneys work directly with clients to develop tailored strategies that align with their unique circumstances and future goals.
Alimony
We provide strategic representation for spousal maintenance matters, balancing legal requirements with clients' financial realities. Our approach considers Colorado's evolving alimony laws to secure fair arrangements through negotiation or litigation. We help clients understand their rights and options for both seeking and opposing support payments.
Child Custody
Our child custody services focus on protecting parental relationships while ensuring children's best interests. We handle custody modifications, relocation cases, and complex parenting arrangements with empathy and legal precision. Our attorneys advocate for solutions that maintain family connections and promote children's well-being.
Mediation
We offer mediation services as an alternative to litigation for family law disputes. Our experienced mediators facilitate constructive discussions about divorce terms, custody arrangements, and financial matters. This collaborative approach helps clients reach mutually beneficial agreements while maintaining control over the outcome.
Child Support
Our child support services ensure fair financial arrangements that meet children's needs while considering both parents' circumstances. We help establish, modify, and enforce support orders using Colorado's guidelines. Our attorneys conduct thorough income analyses to ensure accurate and equitable determinations.
People
Leonard D. Tanis
Partner
Leonard Tanis brings decades of family law experience, specializing in high-conflict custody cases and complex financial divorces. He combines legal expertise with compassionate advocacy, prioritizing clients' long-term well-being.
Michael McGonegal
Partner
Michael McGonegal offers extensive experience in divorce proceedings and mediation, known for his empathetic approach and strategic legal representation. He focuses on achieving practical solutions while maintaining courtroom effectiveness when needed.
Questions
What family law services do you offer?
We specialize in divorce, alimony, child custody, mediation, child support, and related family law matters across Northern Colorado.
Do you offer free consultations?
Yes, we provide 20-minute complimentary consultations to discuss your case and potential legal strategies.
How do you handle child custody cases?
We prioritize children's best interests while protecting parental rights through tailored legal strategies and compassionate advocacy.
Can you help with high-asset divorces?
Our attorneys have extensive experience managing complex financial divorces involving substantial assets and property division.
What areas do you serve?
We serve clients in Adams, Arapahoe, Boulder, Broomfield, Jefferson, Larimer, and Weld counties.
How do you approach mediation?
We facilitate collaborative solutions through structured mediation while maintaining courtroom readiness to protect client interests when needed.