Jon C. Boesen is the founder of Boesen Law, LLC. Mr. Boesen has 26 years of experience and practices in civil litigation, where he has represented thousands of people in all kinds of litigation, including jury trials, workers’ compensation hearings and social security disability hearings. His primary emphasis is in personal injury where he has successfully handled wrongful death, car crash, truck crash, motorcycle crash, slip and fall, dog attack, liquor liability, traumatic brain injury, spinal cord injury cases and other kinds of bodily injury claims. Mr. Boesen has also handled and overseen numerous Mass Tort Claims and Class Actions involving bad and defective pharmaceutical drugs and products, including the representation of over 4,000 claimants nationwide in the Fen-Phen Diet Drug litigation. Mr. Boesen is admitted to practice in Colorado, the U.S. District Court for the District of Colorado, U.S. Court of Appeals for the 10th Circuit and the Supreme Court of the United States. Mr. Boesen is a member of the American Association for Justice, the Colorado Trial Lawyers Association, the Colorado Bar Association, the Denver Bar Association and the Denver Better Business Bureau. Mr. Boesen graduated from Oklahoma State University with a Bachelor’s of Science in 1986 with a Finance Major. In 1989, Mr. Boesen graduated from the University of Oklahoma with a Juris Doctor.

TNS Associates is a firm that was built on the unwavering commitment to obtain superior results for those we have the privilege of representing and at a reasonable cost. You will also find people who genuinely care about you. We are committed to acting on your behalf, representing your interests with passion.

Based in Colorado, Billie Jo L. Sowinski is a family law attorney with a focus on assisting clients through the intricacies of divorce proceedings. Since graduating from law school and being admitted to the bar in 2018, Billie Jo has focused her practice exclusively on family law. In 2025, she was honored as one of the “Top 10 Under 40” Family Law Attorneys in Colorado by the National Academy of Family Law Attorneys, recognizing her as a rising leader in the field. Her mission is centered on guiding individuals through the complexities of divorce with compassion and steadfast support, helping them start new chapters in their lives. Clients trust her dedication, vast knowledge, and responsive approach, making her a reliable advocate in family law. Billie Jo’s expertise lies in various aspects of family law, including divorce, allocation of parenting time (child custody), modifications, and adoptions. She has successfully handled a wide range of cases, from high estate and high conflict divorces to common law marriage disputes and complex allocation of parental responsibilities. Serving clients across Colorado, including Greenwood Village, Denver, Douglas, Adams, Arapahoe, Broomfield, and Jefferson counties, she brings her skills and experience to each unique situation. What truly sets Billie Jo apart as an exceptional attorney is her ability to actively listen to her clients. She understands that concerns and vital information often emerge through seemingly unrelated tangents. By attentively listening, she can extract valuable details crucial to building a strong case. Billie Jo’s clients appreciate her attentive and responsive nature, knowing she genuinely cares about their needs and goals. Having witnessed firsthand the stress and challenges families face during family law cases, Billie Jo is deeply passionate about ensuring a fair and equitable division of assets and an active role for both parents in their child’s life. She recognizes that this period can be incredibly overwhelming for her clients and goes the extra mile to provide compassionate care, guidance, and support throughout the process. Billie Jo believes in open and candid conversations, discussing potential obstacles, relevant case law, statutes, and court actions related to her clients’ issues. Billie Jo’s approach can be described as aggressive yet fair. While she strives for joint resolutions with opposing counsel and litigants, she is always prepared and ready to fiercely advocate for her clients’ best interests in the courtroom if necessary. Her confidence, knowledge, and assertiveness contribute to her success as a family law attorney. Billie Jo lives in Arapahoe County with her husband and embraces being a stepmom to two energetic young stepsons. Alongside her family, she enjoys hiking with her three dogs and attending car shows in the Denver area.

Since entering private practice, Les Roos has specialized in commercial real estate and business law. He has practiced as a partner in a Washington, D.C. law firm, a partner in a firm that was one of Denver’s largest, and as founding member of a small specialty firm in Denver. He has been selected one of Colorado's "Super Lawyers" by Law & Politics and 5280 Denver's Magazine. In over 40 years as a lawyer, he has been involved in virtually every aspect of commercial and residential real estate. Although he concentrates on representation of small, entrepreneurial real estate entities, he has also represented numerous institutional lenders and real estate companies including being the lead attorney from start to finish, assemblage, redevelopment, construction, sale and leasing, for two large redevelopment projects in Aspen, Colorado – a mixed use residential/retail condominium project and a residential condominium/hotel project, both in excess of $100 million. Les has represented sellers and buyers in vacant and improved land sales and his leasing experience, on behalf of both landlords and tenants, includes office buildings, retail and industrial centers, and ground leases. He has prepared all types of condominium and other common interest ownership documents, representing both the project developers and owners associations. He also has extensive experience in negotiating construction contracts and subcontracts and resolving disputes pertaining to these contracts. He has negotiated and drafted loan documents for secured and unsecured lending transactions for both lenders and borrowers, including workouts of distressed properties and foreclosures. His practice includes all aspects of limited liability company, partnership, and corporate law, in formation as well as in disputes and dissolutions. He has also represented buyers and sellers in numerous business sale transactions. A graduate and Law Review Editor of the College of William & Mary School of Law, he has served in leadership positions in a number of community and charitable organizations. Prior to attending law school, Mr. Roos was a professional baseball player and has been inducted into the Temple University Athletic Hall of Fame.

My goal is to protect your immediate interests and your future opportunities. I do this by: Applying my thorough knowledge of the federal and Colorado State constitutions, the rules of procedure and local practice, and the personalities of judges and prosecutors. Exploring your legal options to minimize negative consequences Providing sentencing approaches that are alternatives to incarceration Ensuring your matter is handled in a discrete and confidential manner

Fred A. Dunsing attended law school after employment in the E&C, software, and manufacturing industries. He attended school at night while working full-time during the day. Even though he attended school at night, he managed to gain a significant amount of client representation and trial experience through the Student Law Office operated by the University of Denver and sanctioned under Colorado law.{newline}{newline}After graduation, Fred practiced mainly in the areas of business organizations, criminal defense, civil litigation and family law. Fred currently maintains a litigation practice and limits that practice to family law, which he has done for nearly 20 years. Fred’s family law practice includes the areas of divorce, legal separation, annulments, child custody disputes, property settlements, post-decree modifications, paternity and visitation, grandparent rights, and (pre)marital agreements. Fred is rated “AV-Preeminent” by Martindale Hubbell, which is the highest rating an attorney can receive.{newline}{newline}Fred strives to find cost-effective solutions for clients during negotiations, in litigation, or on appeal. It is his goal to provide personal service at a reasonable cost, and Fred most enjoys the opportunity to help Colorado families through difficult times.

During law school, Mr. Chayet's grandmother, Letty Milstein, was the principle party in one of the most controversial and public elder law cases in the state of Colorado. The Estate of Milstein v. Ayers, 955 P.2d 78 (Colo. App. 1998), is a landmark probate case which upholds and protects the right to counsel and due process of incapacitated adults in Colorado and has been codified into the Colorado Uniform Protective Proceedings Act (the guardianship and conservatorship laws). This experience was the impetus for Mr. Chayet's career long practice commitment to the field of elder law and probate litigation. Mr. Chayet is the past Chairman of the Elder Law Section of the Colorado Bar Association and the recipient of Colorado Super Lawyers 2011 Rising Star in Elder Law. Mr. Chayet's expertise in the area of elder law has also been demonstrated through his publishing in the areas of elder law as well as many public speaking appearances throughout Colorado.Mr. Chayet is an active member of the National Academy of Elder Law Attorneys and a member of the Colorado Bar Association where fellow Colorado attorneys nominated Mr. Chayet to be a Fellow of the Colorado Bar Foundation. Mr. Chayet, born and raised in Denver, Colorado, is continuing in the footsteps of his family in assisting the philanthropic and civic community of Colorado, by serving on the board of many not-for-profit organizations including the Total Long Term Care Foundation, Guardianship Alliance of Colorado, Colorado Citizens for Accountability, Allied Jewish Apartments, Jewish Senior Recreation Network, the Foundation For Hope and the Life Source Services Hospice.

Erika Gebhardt practices exclusively family law and estate planning. Erika began her career in family law when she worked as an extern at the firm during the summer after her first year of law school (2010). After realizing her passion for this area, Erika continued by serving at the firm as a law clerk in the summer following her second year of law school (2011). Erika has a Bachelor of Arts Degree in International Political Economy from Colorado College, Colorado Springs, and was a 2012 graduate of the University of Denver Sturm College of Law, where she was a member of the Order of St. Ives. Erika has worked as a judicial intern in a courtroom with a domestic and civil docket. She also interned for Denver District Court Judge Robert McGahey, Jr., of the Second Judicial District, where she was able to gain valuable experience in motions practice and courtroom procedure. After graduating from law school, Erika worked at a local law firm practicing family law. Licensed to practice in the State of Colorado, Erika is a member of the Colorado Bar Association and the CBA Young Lawyers Division. Originally from Milwaukee, Wisconsin, Erika moved to Colorado in 2005. Erika enjoys volunteering and supporting her community through Metro Volunteer Lawyers and local events.

John has been practicing law in Colorado since 1998. He is the founding member of Eckelberry Law Firm, established in 2006, in charge of the family law and bankruptcy practice for the firm. During his almost 20 years of practice, John has helped hundred of clients achieve personal and financial “fresh starts,” while developing short- and long-term life plans.