If you want to know how to fight a will, the short answer is that you can, but only if you have a direct financial stake in the estate, you act within your state’s filing deadline, and you can point to a specific legal defect in how the will was made or signed. Feeling that the distribution is unfair is not a ground. Courts start from the assumption that a will is valid, and it is the challenger’s job to give them a reason to think otherwise. Most contested cases settle rather than reach a verdict, with estimates suggesting 90 percent or more resolve through negotiation, but the ones that go the distance demand real evidence and real money.
Who Can Actually File
Courts limit will contests to people with standing, meaning a concrete financial interest that would change if the will were invalidated. If striking down the will would not affect what you receive, you have no basis to challenge it.
The people typically recognized as having standing include:
- Beneficiaries under the current will, if its terms reduce what you expected.
- Beneficiaries under a prior will that gave you more than the current one.
- Heirs-at-law, meaning people who would inherit under state intestacy rules if no valid will existed. Spouses, children, parents, and siblings usually fit here.
- Creditors, in some jurisdictions, if the will affects their ability to collect what they are owed.
Roughly half the states have adopted the Uniform Probate Code’s definition of “interested persons,” which covers heirs, devisees, spouses, creditors, beneficiaries, and anyone else with a property right in or claim against the estate. States that haven’t adopted the UPC apply a similar framework. Emotional stake is not enough.
Grounds a Court Will Recognize
You need a specific problem with the will, not a general grievance. Four grounds are recognized.
Lack of Testamentary Capacity
This argues that the will-maker was not mentally competent when they signed. The bar is lower than other capacity standards. The person had to understand that they were making a will, what property they owned, who their natural heirs were, and how those pieces fit together into a distribution plan.1Legal Information Institute. Testamentary Capacity A dementia or Alzheimer’s diagnosis does not by itself prove incapacity. People with cognitive decline have lucid periods, and a will signed during one can hold up. You have to show the person could not meet the four-part test at the moment of signing.
Undue Influence
Undue influence means someone in a position of trust used that relationship to override the will-maker’s independent judgment. The textbook scenario is a caretaker who isolates an elderly person from family and then benefits substantially in a revised will. To prove it, you generally need a confidential or dependent relationship between the influencer and the will-maker, plus suspicious circumstances around how the will was prepared or changed.2Legal Information Institute. Undue Influence
Burden-shifting matters here. Normally the challenger carries the full burden of proof. In undue influence cases, many courts shift that burden to the will’s defender once the challenger shows both a confidential relationship and suspicious circumstances. The defender then has to prove the influence did not occur. That does not guarantee a win, but it changes the pressure of the case.
Fraud or Forgery
Fraud covers deception about what was being signed. Someone might slip a will into routine paperwork or misrepresent its contents to a person with failing eyesight. Forgery is simpler: the signature is not the will-maker’s. Both claims often turn on forensic document examination and handwriting analysis.
Improper Execution
Every state sets rules for how a will must be created, and a failure to follow them can invalidate the document. Most states require a written will, signed by the will-maker, and witnessed by two competent adults. The rules are not identical everywhere. About half the states recognize holographic wills, which are handwritten by the will-maker and typically need no witnesses.3Legal Information Institute. Holographic Will A handful of states allow oral wills under narrow circumstances, usually limited to military personnel in active service or people facing imminent death.4Legal Information Institute. Nuncupative Will An improper execution challenge argues the applicable rules were not followed.
The Deadline Is Short and Strict
Will contests have hard filing deadlines, and missing one usually ends the matter for good. The window varies by state and generally runs from a few months to two years after the will is admitted to probate. Some states start the clock when you receive formal notice of the filing; others start it when the will is actually admitted. Fraud-based claims sometimes get a longer window that starts when the fraud was discovered.
Courts routinely dismiss otherwise valid challenges filed even a day late. Finding the applicable deadline in your jurisdiction should be the first thing you do.
Evidence You Will Need
A contest lives or dies on evidence, and the grounds you choose dictate what you collect.
Start with the will submitted to probate and any earlier versions. Prior wills are powerful when they show a dramatic, unexplained shift in the will-maker’s longstanding intentions, especially if the change benefits someone who came into the picture recently. Identify every interested party, since the court will require you to notify them.
For a capacity claim, medical records are the backbone: dementia diagnoses, medication lists, clinical notes from around the signing date. Testimony from people who saw the will-maker regularly and observed confusion, memory loss, or erratic behavior fills in what records don’t capture.
For undue influence, look for isolation, financial dependence, and sudden changes. Emails, texts, and letters suggesting manipulation matter. So do witnesses who can describe controlling behavior or the will-maker’s diminished independence.
For forgery or fraud, expect to hire a forensic document examiner to compare the signature against known samples of the will-maker’s writing. Examiners can also detect altered pages or different inks.
Getting Medical Records When You Are Not the Executor
Federal privacy law protects a deceased person’s health information for 50 years after death.5HHS.gov. Health Information of Deceased Individuals The executor or estate administrator, as personal representative, controls access and can authorize disclosure. Family members involved in the person’s care may receive limited information tied to that involvement, but broader access generally requires the personal representative’s authorization.
That creates a problem when the executor is the person you suspect of undue influence. Once litigation is filed, your attorney can subpoena records directly from providers through the discovery process. A court order overrides the privacy restrictions that would otherwise block you.
How the Case Moves Through Court
You file a petition in the probate court of the county where the deceased lived. The petition sets out who you are, your relationship to the estate, the grounds for the challenge, and the outcome you want. Filing fees vary.
All interested parties must then be formally served. The executor, named beneficiaries, and heirs-at-law all have the right to participate. Missing someone can delay the case.
Discovery follows. Both sides take depositions, exchange written interrogatories, and request documents including medical records, financial statements, emails, and the drafting attorney’s file. This is where most of the real work happens and where most cases are effectively won or lost.
After discovery, many cases settle, often with a mediator. Settlement usually means renegotiating the distribution in a way all parties will accept. If no agreement is reached, the case goes to trial and a judge rules on the will’s validity.
What Winning Actually Gets You
A successful contest does not automatically hand you the estate. It depends on what the court finds and what other documents exist.
If the whole will is invalidated and a prior valid will exists, the court may reinstate the earlier one. If no prior will exists, the estate passes under state intestacy rules, which distribute property along a fixed hierarchy of spouses, children, parents, and siblings. Sometimes only specific provisions get struck down. A court might invalidate clauses added under undue influence while leaving the rest of the will intact.
Run the numbers before filing. If the current will leaves you $10,000, a prior will left you $50,000, and intestacy would give you nothing, then only reinstating the prior will helps you. If proving up that earlier document is difficult, the challenge can leave you worse off than the will you are fighting.
No-Contest Clauses
Some wills include a no-contest clause that strips your inheritance if you challenge the will and lose. The point is to make you hesitate by putting your existing bequest at risk.6Legal Information Institute. In Terrorem Clause
Enforceability varies. Only Florida and Indiana refuse to enforce these clauses by statute. Most other states enforce them but carve out an exception when the challenger had “probable cause,” meaning evidence that would lead a reasonable person to believe there was a substantial likelihood of success.7Legal Information Institute. No-Contest Clause Under that standard, you can lose the contest and still keep your inheritance if the claim was reasonable when filed.
A no-contest clause also has no bite against someone who received nothing under the will. If you were disinherited entirely, forfeiting your bequest means forfeiting zero.
What a Contest Costs
Attorney fees are the biggest expense. Probate litigation attorneys typically charge hourly rates from $200 to $500 or more depending on experience and market. A straightforward case that settles early might run $10,000 to $25,000 in legal fees. A case that goes through full discovery and trial can run well into six figures.
Then add court filing fees, forensic experts if forgery or capacity is at issue, medical record retrieval, deposition transcripts, and possibly a mediator. A forensic handwriting examiner may charge several thousand dollars for a written opinion and considerably more to testify.
Contingency fee arrangements, where the attorney takes a percentage of the recovery, are uncommon in will contests. Most probate litigators bill hourly. When contingency deals exist, they tend to involve large estates where the potential recovery justifies the risk.
Do the math honestly before committing. Weigh what you stand to gain against what you will spend regardless of outcome. An estate worth $150,000 rarely justifies a fight that could consume half of it in fees.
Assets the Will Does Not Control
A will only governs assets that pass through probate. Many valuable assets transfer automatically to named beneficiaries no matter what the will says: life insurance policies, retirement accounts, payable-on-death bank accounts, and jointly held property. If most of the deceased’s wealth sat in non-probate assets, winning a will contest may not change much.
Beneficiary designations on those accounts can be challenged on the same basic grounds. If someone with dementia was manipulated into changing a life insurance beneficiary or adding a name to a bank account, incapacity and undue influence claims apply. These challenges are usually filed as separate civil actions rather than through probate court, and the procedures and deadlines can differ. If your concerns extend beyond the will itself, tell your attorney early so no deadline slips while attention stays on the will.