Experienced Colorado Estate And Trust Litigation Attorneys Fighting For You

Mahoney Law, LLC
At Mahoney Law, LLC, based in Denver, Colorado, we concentrate our practice on probate, estate and trust litigation, fiduciary litigation defense and removal, estate and trust administration, business litigation, personal counsel services for professionals, estate planning and expert witness services, with additional representation extending to Steamboat Springs. This focused scope allows us to serve clients across Colorado with depth rather than breadth, addressing the courtroom side of estate conflict that many planning-oriented firms are not equipped to handle.
Our foundation rests on more than 60 years of combined legal experience, much of it earned in demanding litigation settings rather than behind a desk drafting documents. Our partner, Andrea N. Mahoney, has been named a 5280 Top Lawyer for Probate Litigation and currently co-chairs the Probate Trial and Procedure Committee within the Colorado Bar Association's Trusts and Estates Section. Her earlier work in commercial litigation sharpens the strategic instincts she brings to contested proceedings.
Our other partner, Kevin S. Mahoney, has conducted more than a thousand depositions and carries an evidentiary command shaped by years in medical malpractice litigation, giving our team the foresight to anticipate opposing strategy and construct arguments that withstand rigorous judicial review. He also holds licensure in Wyoming, where he regularly extends his personal counsel practice, a distinction reserved for very few attorneys statewide.
As an intentionally compact firm, we work in close partnership on every matter, drawing on both attorneys' insight without adding to your cost. Meridith Lee, our paralegal, supports this collaborative structure. Now in a new chapter of our careers as empty nesters, we've centered our practice entirely around this work, treating each engagement with the attention it merits rather than letting it move through a crowded caseload.
When an inheritance is disputed or a fiduciary's conduct is questioned, we step forward as trial-tested advocates. Reach out to Mahoney Law, LLC, for a consultation grounded in candor and courtroom-proven skill.
Visit our websiteOur Recent Case Results
2026 – After succeeding in defending all claims at trial in June of 2025, Mahoney Law won the appeal to the Colorado Court of Appeals which issued its opinion in July of 2026. The Court of Appeals affirmed the trial court’s dismissal of all claims against our client and awarded our client her attorneys’ fees and costs in defending against the appeal. The award of fees and costs was the fourth such award during the course of this litigation.
2026 – The opposing party refused to produce two key witnesses for depositions, claiming that their testimony would be privileged. Mahoney Law prevailed on a motion to compel the opposing party to make these witnesses available for depositions, and the Court sanctioned the opposing party by awarding our client his attorneys’ fees and costs associated with filing the motion.
2026 – After winning a trial to invalidate a trust due to undue influence, and prevailing at the Colorado Court of Appeals, we succeeded in front of the Colorado Supreme Court in having the opposing party’s petition for writ of certiorari denied. The Colorado Supreme Court denied the petition after full briefing. Our attorneys handled the entire case at the trial court, Colorado Court of Appeals, and Colorado Supreme Court.
2026 – After a 2-day trial, the court ruled in favor of our client on all issues and invalidated a will based upon both undue influence and lack of capacity. The opposing party made no offer of settlement prior to trial.
2026 – After prevailing on all issues at trial, the Court awarded our client attorneys’ fees and costs for having to respond to a Motion for New Trial that the Court deemed to be groundless and frivolous.
2025 – After a three-day trial, successfully defended the validity of a Deed and claims for civil theft, breach of fiduciary duty, fraud, and unjust enrichment. Prior to trial, prevailed on a motion to dismiss several claims, which resulted in an award of attorneys’ fees and costs being assessed against the opposing party. After the trial, the judge awarded our client attorneys’ fees and costs a second time for having to respond to what the Court deemed to be a frivolous motion filed by the opposing party during the trial.
2025 – Successfully reformed a will resulting in our clients inheriting more than two million dollars that they would not otherwise have inherited.
2025 – Won appeal after an oral argument to the Court of Appeals, concerning the invalidation of an amended trust due to undue influence.
2024 – Defended the validity of a will executed by an elderly woman with dementia who had been hospitalized one week prior to executing her will. We settled the case with an extremely favorable result for our clients.
2023 – After a 3 1/2 day trial, successfully invalidated an amended and restated trust due to undue influence.
2023 – Successfully defended the validity of a beneficiary designation after a 1/2 day hearing
Client Reviews
I can’t recommend Mahoney Law enough. When my daughter was in the hospital, we urgently needed a Power of Attorney, and they stepped in when most attorneys wouldn’t have been able to help on such short notice.
They were incredibly responsive, professional, and compassionate throughout the entire process. They handled everything quickly while taking the time to explain each step and making sure we felt confident that everything was done correctly.
During one of the most stressful times for our family, Mahoney Law went above and beyond. I’m truly grateful for their help and wouldn’t hesitate to recommend them to anyone in need of legal services. They will be my first call for any legal needs in the future.
Delisa Mayer
My late husband Norman and I were Mr Mahoney’s clients nine years ago. That was in our difficult time. Norman got van hit on the side walk with his legally blind vision at his eight four years old age and got a broken leg. Friend of ours helped us looking for a good attorney for this accident and finally he told us there is a nice gentleman Mr Mahoney can take our case and will get the job well done according to his several friends suggestion. Since my husband can't walk and I don't know how to drive also old age, after get contact with Mr Mahoney, right away he told us that he will come to your place to meet and talk about your case. Soon he came and explained everything so in details, clearly and in the very nice, kind and respectful manner. All of those made us feel so warm, comfortable and confident with him. Things are going on not too smoothly but Mr Mahoney put his efforts one and another, and always let us know what is going on, what methods he takes to solve the problems. So we always have the hope that finally the case will be settled. My husband and I were very satisfied with Mr Mahoney’s wonderful service till the end compensation came. We really appreciated the every thing and all the help Mr Mahoney done for us, so even Mr Mahoney doesn't want to take it, but my husband and I insisted on giving him $500 to show the appreciation from the bottom of our hearts. Since then we always think of Mr and Mrs Mahoney our nice and trustworthy friends. We saw their wonderful kids growing up, their business getting bigger and stronger and will be prosperous in the future.
xiaoguang sun
I am a litigator with 16 years experience and have worked with hundreds if not thousands of attorneys. That said, Kevin Mahoney it one of the best I've ever worked with. He is a professional, well-respected, intelligent, detail oriented, incredibly knowledgeable, down-to-earth, and efficient. If I ever needed an attorney in Colorado, he is who I would call first.
Robert Walker
Mahoney Law provided an excellent experience handling our will and estate planning. They were both highly professional and personable, taking the time to understand our needs and ensure everything was completed smoothly and efficiently. Their client-focused approach gave us confidence that every detail was handled with care.
Claire Murphy
I interviewed and work with almost 10 lawyers and law firms to help with my very complex, international situation. None were able to, until I met the Mahoney Law team. Truly one of a kind and very kind people that I'm not just a case, I'm a person. They make the extremely complex world of law and justice seem simple and accessible. I can't say enough good things about them. I am relieved after every time I talk and work with them.
Scott Unkefer
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Super Lawyers selects attorneys to the Super Lawyers and Rising Stars lists using a patented multiphase selection process. Peer nominations and evaluations are combined with independent research. Each candidate is evaluated on 12 indicators of peer recognition and professional achievement. Selections are made on an annual, state-by-state basis. Learn more about selection
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