Can a Disinherited Child Contest a Will in Michigan? Rights, Exceptions, and Strategies

Discovering that you have been written out of a parent's will is a profoundly painful and shocking experience. Whether you were suddenly replaced by a new spouse, excluded in favor of a sibling, or left out due to a long-standing estrangement, sudden disinheritance can feel like a final betrayal. Many people assume that a parent is legally required to leave something to their children. In Michigan, this is simply not true. A parent has the absolute legal right to leave their entire estate to charity, a neighbor, or just one favored child.

However, this does not mean you are entirely without options. The Michigan Estates and Protected Individuals Code (EPIC) provides strict rules about how a will must be drafted and executed. If a bad actor manipulated your parent into changing their will on their deathbed, or if a severe mental decline caused your parent to suffer from delusions, the law provides clear avenues to fight back. By securing a skilled probate attorney from our directory, you can challenge the validity of the document and demand your rightful share of the estate.

Grounds to Contest a Will in Michigan

You cannot challenge a will simply because you feel the distribution is unfair. To successfully invalidate a will in Michigan, your attorney must prove one of specific legal grounds, such as improper execution (lack of witnesses), lack of testamentary capacity (dementia or Alzheimer's), or undue influence.

The Omitted Child Statute (Children Born After the Will)

Sometimes, disinheritance is entirely accidental. If a parent drafts a will, subsequently has another child, and then passes away without ever updating the document, the new child is not left out in the cold. Under the 'Omitted Child Statute,' found at Mich. Comp. Laws § 700.2302, a child born or adopted after the execution of the parent's will is generally entitled to receive a share of the estate equal to what they would have received if the parent died without any will at all (intestate). This protection applies unless it is obvious from the will that the omission was intentional.

Stepchildren vs. Biological Children Disputes

Blended families are a frequent source of probate litigation. In Michigan, stepchildren have absolutely no automatic inheritance rights. If a step-parent raises a child for 30 years and promises them an inheritance, but fails to officially adopt them or name them explicitly in a valid will, the stepchild will receive nothing. Conversely, biological children often find themselves disinherited when a parent leaves everything to a new spouse, assuming that spouse will 'do the right thing' and pass the remaining assets to the children later. If the new spouse changes their own will to leave everything to their own biological children, litigation often ensues over whether a binding oral contract or a 'mutual will' agreement existed.

Out-of-Wedlock Children Proving Paternity Post-Death

Children born out of wedlock face unique hurdles. If a father dies without a will (or leaves a will excluding 'unknown heirs'), a child born out of wedlock must establish paternity to claim an inheritance. Under Mich. Comp. Laws § 700.2114, paternity can be established after the father's death through DNA testing or by proving that the man and child mutually acknowledged a father-child relationship. This must usually be proven in courts like the Macomb County Probate Court, Mount Clemens or the Kent County Probate Court, Grand Rapids before the estate is fully closed.

Contesting Sudden Disinheritance in Favor of One Sibling

Perhaps the most common will contest involves a parent suddenly changing their will in their final months to leave the entire estate to the one sibling who acted as their caregiver. If the caregiver sibling isolated the parent, restricted their phone calls, and hired their own lawyer to draft the new will, you may have a strong case for 'Undue Influence.' As noted in Michigan Supreme Court precedents like In re Estate of Mardigian, 502 Mich. 154 (MI Supreme Court 2018), if the person who benefits from the will was in a fiduciary or confidential relationship with the deceased, a presumption of undue influence may arise, shifting the burden of proof to the accused sibling.

The Process of Filing a Will Contest

If you intend to fight a disinheritance, time is strictly limited. Once the proposed executor submits a Form PC 559, Michigan, Probate Court, Petition for Probate and/or Appointment of Personal Representative, you must promptly file a formal objection. Waiting until the assets are already distributed makes recovery incredibly difficult. Your attorney will file formal pleadings demanding a halt to the probate process and initiate the 'discovery' phase, where they will subpoena medical records, bank statements, and the drafting attorney's file to prove your parent lacked capacity or was coerced.

How Much Does a Will Contest Cost?

Contesting a will is a full-blown civil lawsuit inside the probate court, and the costs reflect the intensive nature of the work.

How Long Does It Take?

A contested probate estate rarely closes quickly. From the moment you file your formal objection, a typical will contest in Michigan takes anywhere from 12 to 24 months to reach a trial. Many cases, however, are resolved through formal mediation after 6 to 9 months, once both sides have reviewed the medical and financial evidence.

Frequently Asked Questions (FAQ)