Thomas J. Nellessen, Criminal Defense Attorney in Denver, Colorado

Thomas J. Nellessen, Senior Attorney at Johnson Law Group, brings over 30 years of experience in divorce and family law. Tom is known for his compassionate and client-centered approach, with a focus on effective communication and prioritizing the best interests of children throughout the legal process. His expertise spans all areas of family law, including divorce, child custody, spousal support, asset division, and orders of protection, ensuring his clients receive personalized attention and strong legal representation at every stage. Tom also has experience in criminal law, which enhances his ability to navigate complex cases involving overlapping legal issues.

Education & Professional Memberships

Tom earned his Juris Doctor from Northern Illinois College of Law and has been a member of the Colorado Bar Association for over three decades. His commitment to excellence in family law has made him a trusted advocate, providing not only legal guidance but also emotional support to clients navigating complex family matters.

Career Achievements

Before joining Johnson Law Group, Tom founded and led the Nellessen Law Office, where he earned a reputation as one of Colorado’s premier family law attorneys. His deep knowledge of the legal system and unwavering dedication to client advocacy enable him to consistently achieve favorable outcomes for clients, whether through negotiation or litigation.

Comprehensive Experience

In addition to his legal practice, Tom has provided Child-Family Investigator (CFI) services across the Denver Metro area. After completing the state-required 40-hour CFI training program, he has applied his experience as a Guardian ad Litem and Special Advocate to deliver insightful CFI reports. Tom’s approach involves spending significant time with each family, thoroughly understanding their dynamics and relationships, ensuring the court receives a complete and practical picture of each family unit. His investigative method, focused on meaningful family interactions rather than brief testing and limited contact, provides the court with a clearer understanding of the family’s needs, always keeping the well-being of children at the forefront.

Personal Interests

Outside of his legal career, Tom enjoys traveling, attending sporting events, and spending time with his wife, Therese, and their dogs. He is also an avid West Coast swing dancer, having competed nationally and won several competitions, reflecting his passion for both precision and creativity in everything he does.