To contest a will, you file a petition in the probate court handling the estate, show you have a financial stake in the outcome, and prove a specific legal defect in the document, such as improper execution, lack of mental capacity, undue influence, fraud, forgery, or revocation. Learning how to contest a will means understanding three things at once: whether you have the legal right to bring the case, whether your evidence fits one of the recognized grounds, and whether the financial and personal cost is worth what you stand to gain. A will is presumed valid once it has been executed, and the person challenging it carries the burden of proof.
Whether You Have the Right to File
Courts require what they call standing, meaning a direct financial interest that would change depending on whether the will holds up. Two groups almost always qualify.
Heirs-at-law come first. These are the people who would inherit under state intestacy rules if no valid will existed, typically a surviving spouse and children. If the current will fails and no earlier one takes its place, these are the people who would receive the estate.
Beneficiaries named in a previous will also qualify. If an earlier version left you something and the current version cut you out or reduced your share, you have standing because you stand to gain if the current will is thrown out and the earlier one is reinstated.
A close friend or distant relative who was never named in any version of the will generally lacks standing, regardless of the relationship. The question courts ask is straightforward: would this person’s financial position actually change if the will were invalidated? If not, the case gets dismissed before it starts.
The Legal Grounds You Have to Prove
Feeling that a distribution is unfair is not a ground. The law recognizes a specific list of defects, and you have to fit your facts into one of them.
Improper Execution
Every state imposes formalities for creating a valid will. All 50 states require at least two witnesses, though the details vary. Some states require the testator to sign in the physical presence of both witnesses; others accept a less literal version where the testator acknowledges their signature while the witnesses are present. If the will was not signed or witnessed according to the rules of the state where it was executed, it can be invalidated on that basis alone. This is often the most clear-cut ground because it turns on verifiable facts rather than subjective judgments about someone’s mental state.
Lack of Testamentary Capacity
This ground challenges whether the testator was mentally capable of signing. Testamentary capacity generally requires that the person understood what property they owned, knew who their close family members were, grasped that they were creating a document to distribute their assets after death, and could connect those pieces into a coherent plan. The bar is not especially high. Someone can have early-stage dementia or be elderly and still possess capacity, which is why these claims lean heavily on medical records, prescription histories, and testimony from people who interacted with the testator around the signing.
Capacity is measured at the moment of signing, not days or weeks before or after. A testator who had a lucid interval during an otherwise declining period may have had sufficient capacity when the document was executed. Timing evidence is critical.
Undue Influence
Undue influence goes beyond ordinary persuasion. It occurs when someone in a position of trust or authority over the testator overpowers their independent judgment, effectively substituting their own wishes for the testator’s. The classic scenario involves a caretaker, family member, or advisor who isolates the testator, controls access to information, and pressures them to change the will in the influencer’s favor.
In many states, if you can show that a confidential or fiduciary relationship existed between the testator and the person who benefited, that the beneficiary had the opportunity to exert influence, and that the will’s terms disproportionately favor them, courts may presume undue influence occurred. That presumption shifts the burden to the other side to prove the will was freely made. Without this burden-shifting rule, undue influence would be nearly impossible to prove, because the key witness, the testator, is dead.
Fraud or Forgery
Fraud covers situations where the testator was tricked into signing. Perhaps someone told them they were signing a different document, or a family member fed them false information about another heir to get that person written out. Forgery is more direct: the signature was faked, or the document was fabricated. Forensic document examination can be decisive in forgery cases, while fraud claims usually rely on circumstantial evidence such as communications between the parties.
Revocation
A will can also be challenged on the ground that the testator revoked it before death, either by creating a later will that expressly replaced it or by physically destroying the original. If the court finds that the testator intended to revoke and took concrete steps to do so, the revoked document cannot be admitted to probate. These disputes often arise when a later will is referenced but cannot be located, raising the question of whether the testator destroyed it intentionally or it was simply lost.
The Standard You Have to Meet
In many states, the standard for claims like undue influence, fraud, and lack of capacity is clear and convincing evidence, which is a higher bar than the more-likely-than-not standard used in most civil lawsuits. Clear and convincing means the evidence must make the claim highly probable, not just slightly more believable than the alternative. Some states apply a lower preponderance-of-the-evidence standard for certain grounds, so this varies by jurisdiction. This is why so many potential contests never get filed. Believing something went wrong and proving it to a court’s satisfaction are very different things.
The Filing Deadline
Every state imposes a strict deadline for filing a will contest, and missing it is fatal to your case regardless of how strong your evidence is. These deadlines typically range from a few months to two years after the will is admitted to probate, with some states allowing as little as a few weeks under certain circumstances. The clock usually starts running when the will is formally admitted to probate or when you receive notice of the probate proceeding, whichever applies in your state. Because these windows are short and vary significantly, identifying the deadline should be one of the first things you do.
What to Gather Before You File
Building a case takes evidence, and you want to collect it before the petition goes out. At minimum:
- The current will and any prior versions. Side-by-side comparisons can reveal sudden, unexplained changes, which supports claims of undue influence or lack of capacity.
- The death certificate, which the probate court requires as a procedural matter.
- Medical records, especially from the testator’s physicians around the time the will was signed. These carry the most weight in capacity challenges.
- Communications such as emails, text messages, letters, or voicemails showing manipulation, isolation, or threats.
- Names and contact information for the witnesses who signed the will and anyone who spent significant time with the testator during the relevant period.
- A list of all heirs and beneficiaries, so the court knows everyone with a potential stake in the outcome.
How the Case Moves Forward
Hiring a probate litigation attorney is not optional as a practical matter. Will contests involve procedural rules that vary by county and judge, and mistakes in filing can end the case before it begins. Your attorney drafts a petition or complaint and files it with the probate court in the county where the deceased person lived. The document identifies your standing, lays out the legal grounds, and summarizes the supporting evidence. After filing, every interested party, including the executor and all beneficiaries, must be formally served with notice so they can respond.
The case then enters discovery, where each side gathers evidence from the other through document requests, written questions called interrogatories, and depositions under oath. Depositions of the attesting witnesses, the attorney who drafted the will, and anyone who spent significant time with the testator are often the most revealing. If capacity is at issue, medical providers may be deposed as well. Expert witnesses frequently come in during this phase: a forensic document examiner for signature analysis, or a geriatric psychiatrist or neuropsychologist to review medical records and offer an opinion on capacity.
Many probate courts encourage or require mediation before trial. Settlement is extremely common in will contests. Most cases resolve before trial because the costs, the uncertainty, and the family strain create powerful incentives to negotiate. A settlement might redistribute assets, modify specific bequests, or honor certain provisions while voiding others. If the case doesn’t settle, it proceeds to trial before a probate judge or, in some states, a jury.
The entire process from filing to resolution typically takes well over a year. Cases that settle may wrap up in several months; contested matters that go to trial can stretch to two years or longer, particularly with large estates. During this period, administration of the estate is generally delayed, and distributions to beneficiaries may be frozen or restricted.
What It Costs
Will contests are expensive, and underestimating the cost is one of the most common mistakes people make before filing.
Attorney fees are the largest expense. Probate litigation attorneys typically charge between $350 and $650 per hour, and a contested case involves substantial time for drafting, discovery, depositions, and hearings. Some attorneys take will contests on contingency, meaning they take a percentage of the recovery instead of hourly fees. Contingency percentages commonly range from about a third of the recovery if the case settles to 40 percent if it goes to trial. That arrangement shifts the financial risk but also gives up a significant share of any award.
Expert witness fees add another layer. Medical experts, forensic document examiners, and other specialists typically charge $450 to $500 per hour for review and testimony. In a case involving both a capacity challenge and a forgery allegation, expert costs alone can run into five figures. Court filing fees for probate matters generally run several hundred dollars, and professional process servers charge between $65 and $200 per person served, with costs increasing for hard-to-locate parties.
One factor sometimes offsets these costs. If the contest succeeds and the court finds that the challenge protected the estate’s integrity by uncovering fraud, forgery, or undue influence, the judge may order the estate to reimburse the contestant’s legal fees. This isn’t guaranteed, and courts have broad discretion in making these awards, but it’s worth discussing with your attorney at the outset because it affects the overall risk calculation.
The No-Contest Clause Risk
Some wills include a no-contest clause, sometimes called an in terrorem clause, stating that any beneficiary who challenges the will forfeits their inheritance. These clauses create a real dilemma. If you were named in the will for a smaller share than you expected, filing a contest could mean walking away with nothing if you lose.
Most states enforce no-contest clauses, though courts tend to interpret them narrowly. A few states, including Florida, refuse to enforce them by statute. Several others recognize a probable cause exception, meaning a beneficiary won’t be penalized if they had a reasonable, good-faith basis for bringing the challenge. Under this exception, a court looks at whether the evidence would lead a reasonable person to conclude that the contest had a substantial likelihood of success. If so, the clause doesn’t apply even if the contest ultimately fails.
If the will you’re considering challenging contains a no-contest clause, this is the single most important factor to discuss with an attorney before filing. The intersection of your potential inheritance under the current will and the risk of forfeiture under the clause fundamentally shapes whether a contest makes strategic sense.
What Winning or Losing Actually Gets You
A successful contest leads to one of three results.
- Full invalidation with a prior will. If the contested will is thrown out and an earlier valid will exists, the court may admit that earlier will to probate. The estate then passes under that document’s terms.
- Full invalidation with no prior will. If no earlier will exists or all prior wills are also invalid, the estate passes under the state’s intestacy laws, which distribute assets to the closest surviving relatives in a prescribed order.
- Partial invalidation. The court may strike only the tainted provisions and leave the rest of the will intact. This can happen when undue influence affected a specific bequest but didn’t infect the entire document. The valid portions remain in effect, and the voided portions get distributed under intestacy rules or a prior will’s terms.
An unsuccessful contest leaves the original will in place, and the contestant may face consequences beyond losing the case. If the will contains a no-contest clause and the state enforces it without a probable cause exception, the contestant forfeits whatever they were set to receive under the will. Even without such a clause, the contestant is typically responsible for their own attorney fees and litigation costs.