How to Contest a Will: A Step-by-Step Guide

By the end of this article, you’ll have a clear overview of why and how you can contest a will, the legal process involved, and ways to potentially avoid disputes over an estate in the future.
Jump to article sections:
- Understanding the Basics of Contesting a Will
- Reasons to Contest a Will
- Preparing to Contest a Will
- The Legal Process of Contesting a Will
- Practical Considerations and Challenges
- Conclusion
1. Understanding the Basics of Contesting a Will
What Does It Mean to Contest a Will?
Contesting a will means legally challenging the document’s validity in probate court. A will is intended to reflect the final wishes of someone who has passed away, but there are situations where this doesn’t happen. Grounds for a contest can include undue influence, lack of capacity to make the will, fraud, or errors during its execution. If the court agrees the document is not valid, it may be set aside or modified.
Who Can Contest a Will?
Not everyone has the legal standing to contest a will. Generally, only those who have a direct interest in the outcome can file a contest. This typically includes heirs (people who would inherit under default laws if no will existed) or beneficiaries named in the will. For example, if an earlier version of the will listed you as a beneficiary but the latest version removes you, you may be eligible to contest.
When Can You Contest a Will?
Contesting a will is not something that can be done at any time. There are specific time frames set by each state in which a will can be contested, typically within a few months after the will has been filed for probate. It’s important to act quickly if you believe you have grounds to contest a will, as missing the deadline could result in your claim being dismissed. Read more in “How Long After Probate Can a Will be Contested?”
2. Reasons to Contest a Will
Lack of Testamentary Capacity
When making a will, the testator (the person creating the document) must have the mental capacity to understand what they’re doing. If they were suffering from conditions like dementia or severe cognitive impairment at the time the will was executed, the document’s validity could be called into question.
Example cases include wills written when the testator was heavily medicated or had been officially diagnosed with memory-related illnesses. Evidence such as medical records or testimony from doctors can be critical here.
Undue Influence
Undue influence refers to situations where someone close to the testator unfairly pressured or manipulated them into changing their will. Warning signs could include sudden, unexpected changes to the will that benefit only the influencer. To prove undue influence, you’ll need evidence like emails, witness statements, or financial transactions showing unusual patterns.
Improper Execution of the Will
A will must meet specific legal standards to be valid. These can include proper signing in front of witnesses, correct formatting, or even adhering to state-specific rules. If these requirements aren’t met, the will may be invalidated. For example, in Wisconsin probate law, a valid will typically requires at least two witnesses.
Fraud or Forgery
Fraud occurs when someone tricks the testator into signing a will under false pretenses, while forgery involves faking the testator’s signature. Either scenario may serve as grounds for a contest if supported by clear evidence such as handwriting analysis or witness testimony.
3. Preparing to Contest a Will
Step 1: Consult a Probate Attorney
Before taking any legal steps, it’s important to hire a probate attorney. They’ll help you understand your rights, assess your chances of success, and guide you through the complex legal process. Look for lawyers specializing in probate law or estate disputes, and ensure they have a proven track record in cases similar to yours.
Step 2: Evaluate Your Legal Standing
Determine whether you have the legal grounds to file a contest. This involves checking your relationship to the deceased and confirming your interest in the estate (e.g., as an heir or a previous beneficiary). Documentation such as earlier versions of the will, family records, or financial statements can support your claim.
Step 3: Collect Evidence
Strong evidence is key to winning a will contest. Examples include medical records demonstrating the testator’s diminished capacity, correspondence showing undue influence, or witness accounts of suspicious behavior. Anything that supports your case and aligns with your legal argument is valuable.
Step 4: File the Contest with the Probate Court
To initiate the legal process, you’ll need to file a contest with the probate court handling the estate. Timing is critical—most states, including Wisconsin, have strict deadlines for challenging a will after it enters probate. Alongside filing, you’ll also submit supporting documents to outline the reasons for your contest.
4. The Legal Process of Contesting a Will
Entering Probate Court
Once your contest is filed, the will enters probate court. The court’s role is to oversee the estate settlement process and determine whether your contest is valid. Your attorney will handle much of the legal legwork, but be prepared for formal hearings and potential requests for additional documentation.
Mediation vs. Litigation
Many estate disputes are resolved through mediation, a less adversarial process where both parties attempt to reach a mutually acceptable outcome. If mediation fails, the case moves to litigation, where a judge makes the final decision after a full court hearing.
Hearing and Outcome
During court hearings, both sides will present evidence and arguments. The judge will then decide on the validity of the will. Outcomes vary widely depending on the case; the court may uphold the document, void it entirely, or reinstate an earlier version of the will.
5. Practical Considerations and Challenges

It’s essential to weigh the potential outcomes against these risks before moving forward and to have open, honest conversations with family members to help minimize conflict where possible.
6. Conclusion
Contesting a will is a complex but often necessary process to ensure an estate is settled fairly and in line with a loved one’s true intentions. By understanding the steps involved and seeking advice from a qualified probate attorney, you can protect your rights and address any discrepancies in the estate.
If you’re considering contesting a will, Fricker Law is here to help. Our experienced Milwaukee probate lawyers specialize in probate law and estate disputes. Contact us today for personalized guidance and support through this challenging process.
By Attorney Robert Fricker, Owner of Fricker Law
Specializing in probate law, Attorney Robert Fricker offers a range of services from wills and trusts to real estate matters and elder law. He brings decades of experience to the table, ensuring that each client receives reliable advice and quick resolution to their case. Fricker Law Office is a family legal practice that has been providing services to clients in Milwaukee and Waukesha counties for over 65 years.






