Yes, you can contest your father’s will, but only if you have a legal stake in the estate, a recognized legal ground for the challenge, and you file within your state’s deadline. Disappointment with what you inherited, or didn’t, is not by itself a reason a court will hear. What follows is what you actually need: standing, a valid basis, evidence, and speed.
Do You Have Standing
Before a court considers your challenge, you have to show you’re an “interested person” with a financial stake in the outcome. Courts don’t let strangers tie up an estate in litigation. As a child of the deceased, you almost always qualify.
Standing typically belongs to two groups: people named in the current will, and people who would inherit under state intestacy laws if the will were thrown out. Children usually fall into both. You also have standing if you were named in an earlier version of your father’s will and were removed or received less in the final version, or if you were a beneficiary under a prior will that the current one replaced.
How Long You Have to File
This is where most people lose their chance. Every state sets a deadline for filing a will contest after probate begins, and the windows are short. Depending on the state, you may have as little as a few months from the date you receive formal notice of probate. Some states set a hard outer limit of six months to one year regardless of when you were notified. Once that deadline passes, your right to challenge is gone permanently.
The clock typically starts when the court admits the will to probate or when you’re formally served with a notice of administration. If you suspect something is wrong, talk to an attorney before the funeral details even settle. Waiting to see how things play out is the single most common way people forfeit a legitimate claim.
Legal Grounds a Court Will Accept
Courts won’t invalidate a will because the distribution seems unfair. You need to prove a recognized legal defect. There are four.
Lack of Testamentary Capacity
To make a valid will, your father needed the mental ability to understand four things at the moment of signing: that he was making a will, what property he owned, who his natural beneficiaries were (spouse, children, close family), and how the will connected those elements into a coherent plan. This standard doesn’t require perfect mental health. A person with early-stage dementia might still have lucid intervals. The question is whether capacity existed at the specific moment the will was signed.
Capacity challenges often arise when the person suffered from Alzheimer’s, severe mental illness, or was heavily medicated near the end of life. Medical records from around the date of signing are the most important evidence. Hospital records, physician notes, medication logs, and testimony from people who interacted with your father can all help establish whether he understood what he was doing.
Undue Influence
Undue influence means someone overpowered your father’s free will and substituted their own wishes for his. This goes beyond ordinary persuasion. A family member saying “I think you should leave me the house” isn’t undue influence. But isolating your father from other family, controlling his access to information, managing his finances, and then getting him to sign a will that benefits the influencer disproportionately starts to look like a real case.
Courts look at the relationship. A caregiver, financial advisor, or family member with daily control over your father’s life is in a position to exert this kind of pressure. Red flags include sudden changes to estate plans late in life, secrecy around the will’s preparation, and the alleged influencer’s involvement in selecting the attorney or attending the signing. The more of these factors line up, the stronger the case.
Improper Execution
Every state has formal requirements for how a will must be signed and witnessed. Most states require a written document, signed by the person making it (or by someone else at their direction and in their presence), and witnessed by at least two adults who watched the signing or heard the person acknowledge the signature. If these steps weren’t followed, the will may be invalid on technical grounds alone.
Common problems include only one witness instead of two, witnesses who weren’t present at the same time, witnesses who are also beneficiaries under the will, or a signature that appears to have been guided by someone else’s hand. Some states apply a “harmless error” doctrine that lets a court validate a will with minor technical defects if there’s clear and convincing evidence the person intended the document to be their will. Not every state has adopted that rule, so a defect forgiven in one state may be fatal in another.
Fraud and Forgery
Fraud means someone deceived your father into signing something he didn’t understand or making decisions based on false information. Classic examples: someone tells your father you died or abandoned the family so he’ll disinherit you, or someone slips a will into a stack of papers and your father signs it thinking it’s something else. Forgery, where someone fakes the signature or fabricates an entire document, is the most extreme form and is treated as a criminal matter as well as a civil one.
Watch for a No-Contest Clause
Some wills include a no-contest clause, sometimes called an “in terrorem” clause. If your father’s will has one, it says any beneficiary who challenges the will forfeits whatever they were supposed to receive. The purpose is to discourage litigation by making the cost of losing very high.
Whether the clause has teeth depends on where you live. Most states enforce them but interpret them narrowly. Many states carve out a “probable cause” exception: if you had a reasonable, good-faith basis for the challenge, the clause won’t be enforced against you even if you lose. A few states, including Florida, refuse to enforce these clauses at all. And the clause only affects people who were named as beneficiaries. If you were already completely disinherited, a no-contest clause can’t take away something you weren’t getting.
If the will contains one, the calculus changes. Have an attorney evaluate whether your state honors a probable cause exception and whether your evidence is strong enough to qualify. Filing a weak challenge against a will with a no-contest clause is one of the worst outcomes possible in probate litigation.
Who Has to Prove What
You do. The law presumes a will admitted to probate is valid, and as the challenger you carry the burden of overcoming that presumption. For capacity and undue influence, many courts require “clear and convincing evidence,” a higher bar than the “more likely than not” standard used in most civil cases. You don’t need to prove your case beyond a reasonable doubt, but you need more than a hunch or a family grudge.
Improper execution claims can be easier because they turn on objective facts: how many witnesses signed, whether they were present, whether the document was properly notarized. Undue influence is notoriously difficult because the influencer rarely leaves a paper trail. Courts often rely on circumstantial evidence, including patterns of behavior, changes in the will’s provisions, and the influencer’s access and opportunity.
How the Process Actually Works
Start With the Right Lawyer
The first step is consulting a probate litigation attorney. This isn’t the same as the lawyer who drafted the will or handles routine estate administration. You want someone who has tried will contests, because these cases live or die on evidence strategy. Most attorneys will do an initial consultation to assess standing, identify possible grounds, and give you a realistic read on the case.
Before that consultation, gather what you can: copies of the will (current and any prior versions), your father’s medical records, financial statements, correspondence, and the names of people who witnessed his condition or his interactions with the alleged influencer. The more you bring, the more useful the meeting.
Filing and Discovery
The formal contest begins when you file a petition or complaint with the probate court that has jurisdiction over the estate. That puts the executor, the beneficiaries, and the court on notice. After filing, the case enters discovery, where both sides exchange documents, take depositions, and build their evidence.
Medical records deserve special attention. HIPAA protections on your father’s health information don’t disappear at death. Under federal regulations, covered entities like hospitals and doctors must continue protecting that information for 50 years after the patient’s death.1eCFR. eCFR 45 CFR 164.502 – Uses and Disclosures of Protected Health Information The executor or administrator can authorize release as a “personal representative” under HIPAA, but if the executor is the same person you’re accusing of undue influence, you may need a court order or subpoena. Expect that to take time.
Settlement or Trial
The vast majority of will contests settle before trial. Estimates suggest roughly 90% or more of litigated probate cases reach a negotiated resolution. Mediation is common, with a neutral third party helping the family work toward an agreement instead of a judge deciding. A settlement can mean a redistribution of assets, a lump-sum payment to the challenger, or a creative arrangement a court couldn’t order.
Any agreement should be in writing, signed by all parties (not just their attorneys), and should clearly spell out which claims are being resolved. Courts in many states can retain jurisdiction to enforce the agreement, which gives you a way to hold the other side accountable without filing a new lawsuit.
If settlement fails, the case goes to trial. A judge (probate cases rarely involve juries) will hear testimony, review documentary evidence, and rule on the will’s validity. Trials are expensive and emotionally draining, and they damage family relationships in ways settlements sometimes don’t. That’s not a reason to accept a bad deal, but it’s worth weighing.
What It Costs
Will contests are not cheap. Attorney fees typically start at $5,000 to $10,000 for relatively straightforward cases and climb steeply from there once discovery, expert witnesses, and trial come into play. Estate litigation attorneys usually charge hourly rates of roughly $250 to $500 depending on the market and their experience, though flat-fee or contingency arrangements exist. Under a contingency, the attorney takes a percentage of what you recover: often about one-third if the case settles and closer to 40% if it goes to trial.
Beyond attorney fees, you’ll face court filing costs, deposition transcript fees, and potentially expert witness charges. Medical experts who evaluate testamentary capacity can charge $350 to $500 per hour for case review and more for trial testimony. If the estate is modest, the cost of contesting can consume a significant portion of what you might recover. A good attorney will help you run that math early.
What Happens If You Win or Lose
If your challenge fails, the will stands as written and the estate is distributed according to its terms. Appeals in probate cases are difficult to win.
If you succeed, the outcome depends on the scope of the ruling. The court may throw out the entire will, or strike only the tainted provisions while leaving the rest intact. Partial invalidation happens when, for instance, one specific gift was the product of undue influence but the rest of the will reflects your father’s genuine wishes.
When an entire will is invalidated, the court looks for a prior valid will. If one exists, that earlier will takes effect. If none exists, the estate passes under your state’s intestacy laws, the default rules for when someone dies without a will. Under intestacy, a surviving spouse typically receives the largest share, followed by children, then parents and more distant relatives. As a child, you would likely receive a significant share, which is one reason children often have the strongest incentive to contest a will that cut them out.