I’ve sat with a lot of families in this exact moment, and I know how disorienting it is. You expect grief when you lose a parent. You don’t expect to also feel confused or suspicious, sitting across the table from a will that doesn’t look like the one they described to you.
If that’s your situation, I want you to know two things. First, your instinct to ask questions is valid, and you should follow it. Second, contesting a will is possible in Colorado, but it requires a clear head, solid evidence, and a careful legal strategy. Let’s walk through what that looks like.
What Counts as Valid Grounds to Contest a Will
Colorado courts don’t set aside a will simply because the outcome feels unfair. There has to be a legal basis. The most common grounds I see include:
- Undue influence. Someone close to the deceased used pressure, manipulation, or control to shape the will in their own favor, rather than reflecting what the person really wanted.
- Lack of mental capacity. The person didn’t understand what they owned, who their natural heirs were, or what signing the document meant, often because of dementia, a sudden medical decline, or another cognitive impairment.
- Improper execution. The will wasn’t signed or witnessed as required by Colorado law.
- Fraud or duress. The person was deceived about what they were signing, or was coerced into it.
Undue influence is the ground I encounter most often, and it tends to follow a recognizable pattern: isolation from other family members, an outsized role in arranging the new estate plan, and financial changes occurring around the same time.
The pattern of undue influence
In my 26 years practicing trusts, estates, and elder law across the Front Range and Western Slope, and in my work as a hospice and hospital chaplain, I’ve sat alongside many families in this exact situation.One case that has stayed with me involved two adult siblings who slowly realized their sister had taken over their aging father’s life in his final year. Phone calls went unanswered. Visits got shorter and more tense. Their sister accompanied their father to every medical appointment and every meeting with his estate planning attorney, while quietly discouraging her siblings from getting involved. By the time their father passed, the home and investment accounts had been shifted almost entirely in her favor, just months before his death, with no explanation for the change from a plan he and his late wife had kept in place for over a decade. You can read more about their story in this blog.
If it sounds familiar to you, please know that pattern is exactly what Colorado courts look for when weighing an undue influence claim. When someone plays an active role in creating a will that overwhelmingly benefits them, the law can actually shift the burden onto them to prove they didn’t exert undue influence. That shift matters enormously in building your case.
The Legal Process For Contesting a Will in Colorado
Here’s where I want to be direct with you, because I believe you deserve clarity, not false reassurance.
Courts start by presuming the will is valid.
The legal bar to overturn a properly executed will is high. That said, when the primary beneficiary played an active role in drafting the will, arranging for it to be created, or isolating the testator from other family members, the burden can shift to them to prove undue influence didn’t happen. That shift is often the single biggest factor in how a case unfolds, which is why the pattern above matters so much.
Timing matters more than almost anything else.
Colorado imposes strict deadlines for contesting a will, and they can be measured in months rather than years once a will has been admitted to probate. There are some exceptions, for example, when fraud is only discovered later, but you should never assume you have time to spare. If you suspect something is wrong, talk to an attorney right away.
You need to be the right person.
Only “interested persons,” generally heirs, named beneficiaries, or people who would have inherited under a previous will, have the legal right to bring a challenge.
Evidence carries the case.
Medical records, witness accounts, financial documents, and a clear timeline of events all matter. Colorado’s probate code also offers a useful tool before a case ever reaches a courtroom, a “723 hearing,” which lets you bring a fiduciary in to answer questions under oath about their conduct and the finances involved, before you’ve even filed a formal complaint. It’s essentially a deposition before the fight begins, and it can shape a much stronger case from the outset.
Dead Man’s Statute.
In Colorado, this prevents an interested person (see above) from testifying about what the deceased wanted. That means neutral third parties, people who didn’t stand to benefit, often become some of the most important voices in the case.
It’s a real investment.
Litigating a will contest through trial commonly runs $50,000 to $100,000 or more per side in legal fees, expert witnesses, and court costs, and it can take a year or more to resolve, sometimes longer once you factor in post-trial motions or an appeal. That’s exactly why an experienced attorney will look closely at the strength of your evidence before recommending how to move forward.
Trial isn’t the only path.
Many of these cases resolve through a well-prepared demand letter and mediation rather than a courtroom, often with a retired or senior judge serving as the neutral mediator. Mediation typically runs $5,000 to $10,000 total, a fraction of the cost of a trial, and can bring a resolution far sooner. When the evidence is strong, the other party often has a real incentive to negotiate rather than risk a public trial. A fair settlement won’t erase the pain of watching a parent be manipulated, but it can restore something closer to what your loved one actually intended, and let your family begin to heal.
One practical caution as you gather your thoughts: please don’t type family names, financial details, or your suspicions into ChatGPT or similar tools while you’re sorting through this. Those conversations aren’t protected the way conversations with your attorney are, and courts have already found AI chat logs discoverable in litigation. Bring your questions to a real conversation with an attorney instead.
Let’s Talk About Your Situation
If you’re worried a loved one’s estate plan doesn’t reflect what they truly wanted, or you’re seeing warning signs of undue influence right now, you don’t have to figure this out on your own. I’m here to help you understand your options, assess the strength of your case, and decide on the right path forward for your family.
Call 720-457-4573 or email info@rockymtnelderlaw.com to talk it through.
We recently held a free webinar on the true cost of going to trial, available on our Resources page. It walks through the financial, emotional, and time costs most families don’t anticipate, and it’s worth watching before you decide how to move forward.
