We handle the details of probate litigation so you can focus on healing.
When estate disputes arise, such as a contested will, a trustee acting in bad faith, or a guardianship gone wrong, the stakes are personal and the window to act is narrow. At Simasko Law, our probate litigation attorneys represent clients throughout Macomb, Wayne, Oakland, St. Clair, and Sanilac Counties in Michigan, including Macomb County Probate Court in Mount Clemens. Whether you’re defending a loved one’s estate plan or challenging one you believe was signed under pressure or incapacity, we move quickly to protect your interests and your family’s future.
What Is Probate Litigation in Michigan?
Probate litigation is the legal process of resolving disputes related to a deceased person's estate or the care of a living incapacitated person. In Michigan, these matters are governed by the Estates and Protected Individuals Code (EPIC) and are heard in the county probate courts.
It’s important to distinguish probate litigation from routine probate administration. Administration is the court-supervised process of settling an estate, such as paying debts, transferring assets, and closing accounts. Litigation begins when someone disputes how that process is unfolding, or challenges the validity of the documents driving it. Most probate litigation falls into three categories:
- Estate administration disputes — conflicts between heirs, personal representatives, or creditors over how an estate is being managed or distributed.
- Will and trust contests — legal challenges claiming a will or trust is invalid due to lack of capacity, undue influence, fraud, or improper execution.
- Guardianship and conservatorship conflicts — disputes over who should manage the personal or financial affairs of an incapacitated adult, or allegations that a current guardian or conservator is acting improperly.
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Simasko Law Elder Law Attorneys serve the Macomb, Wayne, Oakland, St. Clair, and Sanilac Counties in Michigan.
Will Contests & Undue Influence Claims
Challenging a will in Michigan requires legal grounds. The most common include:
- Lack of testamentary capacity – the testator didn’t have the mental clarity to understand what they were signing or what it meant
- Undue influence – someone pressured, manipulated, or isolated a vulnerable person into changing their estate plan
- Fraud – the testator was deceived about the nature or contents of the document they signed
- Forgery – the signature or the document itself was falsified
- Improper execution – the will wasn’t signed or witnessed according to Michigan law
Undue influence claims are among the most common and most fact-intensive. They often surface in blended families, late-life marriages, or situations in which a caregiver receives an unexpectedly large inheritance. These cases hinge on relationship dynamics, medical records, and patterns of behavior that take time and expertise to uncover.
Michigan has a strict statute of limitations for will contests. In most cases, you have only a limited window after the will is admitted to probate to file a challenge. Waiting can permanently bar your claim, which is why contacting a probate litigation attorney as soon as a dispute surfaces is essential.
Trust Disputes & Breach of Fiduciary Duty
Trustees have a legal obligation to manage trust assets in the best interests of the beneficiaries, not themselves. When that duty is broken, beneficiaries have the right to take action. Common trust litigation issues include:
- Failure to provide accountings or maintain transparency
- Trustee self-dealing or conflicts of interest
- Improper or unauthorized distributions
- Mismanagement of trust assets
- Trustee removal actions and surcharge petitions
Trust disputes often involve long-term asset protection concerns, particularly when the trust was created as part of a senior’s estate plan or Medicaid strategy. Simasko Law’s background in Michigan elder law and asset preservation means we understand not just the legal mechanics of these disputes, but the full financial picture driving them.
Guardianship & Conservatorship Contests
When a family member can no longer manage their own affairs, someone must petition the probate court for guardianship (personal/medical decisions) or conservatorship (financial decisions). These proceedings turn contentious when family members disagree about who should serve, when the proposed ward objects, or when a current guardian or conservator is accused of neglect or financial abuse.
Contested guardianship and conservatorship matters can involve:
- Challenges to a proposed appointment
- Allegations of financial mismanagement or elder abuse
- Petitions to remove or replace a guardian or conservator
- Emergency petitions when a vulnerable person is at immediate risk
Michigan law requires annual reporting by guardians and conservators, and probate courts can remove or surcharge a fiduciary who fails in their duties. If you believe a loved one is being harmed or exploited by someone in a position of legal authority over them, Simasko Law can help you petition the court for review, removal, or replacement.
Who Can File Probate Litigation in Michigan?
Not everyone has the legal right to challenge a will, contest a trust, or petition for guardianship review. Michigan probate courts require “standing,” which is a direct legal interest in the outcome of the proceeding. Those who typically qualify include:
- Beneficiaries named in a will or trust
- Heirs at law who would inherit under intestacy if the will is invalidated
- Trustees, personal representatives, and other fiduciaries
- Guardians and conservators
- Other interested parties directly affected by the probate proceedings
If you’re unsure whether you have the right to file, an attorney can evaluate your relationship to the estate or protected individual and tell you plainly what your options are.
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The Probate Litigation Process: What to Expect
Most probate litigation in Michigan begins with filing a petition in the county probate court where the estate or protected individual is located. From there, the process typically involves:
- Notice to all interested parties
- Discovery, including gathering documents, financial records, and communications
- Depositions of key witnesses
- Mediation, which is a structured negotiation process that resolves many disputes before trial
- Trial, if the matter cannot be resolved through settlement
Timelines vary significantly. Uncontested guardianship matters may resolve in four to eight weeks, while complex will contests or trust disputes can take a year or longer. The majority of cases settle before trial, but the quality of that settlement almost always depends on how thoroughly the case was prepared from the start. Simasko Law prepares every case as if it’s going to trial, which often produces better outcomes even when it never reaches a courtroom.
Why Probate Disputes Tear Families Apart (And How to Stop It)
Probate litigation rarely begins as a legal dispute. It begins as grief, then transitions into suspicion, then into accusations, and finally solidifies into courtroom battles that can outlast the estate itself. Siblings who haven’t spoken in years, blended families fighting over a late-life marriage, adult children convinced a caregiver manipulated their parents’ final wishes are situations we handle every day.
Simasko Law approaches probate litigation with two priorities: protect your legal rights and resolve the matter as efficiently as possible. We tell clients honestly when settlement is the smarter move, and we move aggressively when the other side is acting in bad faith or dragging out a dispute to exhaust the estate. In all probate litigation cases, our goal is always to achieve a clear resolution that allows you to move forward.
Litigation Strategy & Probate Dispute Consultations
Simasko Law offers a free initial consultation for probate litigation matters. During that meeting, we review the facts, assess the strength of your position, and outline a strategy with clear next steps, including an honest evaluation of whether litigation or negotiated settlement is more likely to serve your interests.
Because our firm is deeply rooted in Michigan elder law, estate planning, and asset preservation, we understand the full context of these disputes — not just the litigation tactics, but the family dynamics, financial structures, and long-term care concerns that drive them.
If the dispute involves an estate plan that was poorly drafted or never updated, we can also advise on how to prevent similar conflicts for the next generation.
Frequently Asked Questions
You must file a petition in the probate court where the estate is being administered, typically within a limited time after the will is admitted to probate. Valid grounds include lack of testamentary capacity, undue influence, fraud, forgery, or improper execution. An attorney can evaluate whether your situation meets the legal threshold and help you file before the deadline.
Undue influence occurs when someone uses pressure, manipulation, or coercion to override a vulnerable person’s free will and cause them to change their estate plan. It’s not always obvious, often involving patterns of isolation, control, or dependency that developed over time. Courts look at the relationship between the parties, the testator’s vulnerability, and whether the resulting estate plan reflects a suspicious departure from prior intentions.
Yes. Michigan courts can remove a trustee for breach of fiduciary duty, failure to account, self-dealing, or mismanagement of trust assets. Beneficiaries can petition the court for removal and, in some cases, surcharge the trustee for losses caused by their misconduct.
Beneficiaries named in the will, heirs at law who would inherit if the will were invalidated, and other interested parties with a direct stake in the estate may have standing to file a challenge. Not everyone qualifies — an attorney can determine whether your relationship to the estate gives you the right to contest.
It depends on the complexity of the dispute. Uncontested guardianship matters may resolve in 4–8 weeks. Contested will or trust cases can take a year or longer, depending on the amount of discovery involved and whether the parties are open to settlement. Most cases resolve before trial.
Probate administration is the routine court-supervised process of settling a deceased person’s estate, including validating the will, paying debts, and distributing assets. Probate litigation begins when someone disputes how that process is unfolding, challenges the validity of the estate documents, or accuses a fiduciary of misconduct.
No. Many probate disputes settle through mediation or negotiated agreements before a trial is ever scheduled. However, how well you do in settlement is often a direct reflection of how well-prepared your case is. Simasko Law builds every matter as if it’s headed to court, which puts our clients in a stronger position at every stage of the process.
Speak With a Michigan Probate Litigation Attorney
If you are facing a will contest, trust dispute, guardianship conflict, or any other probate litigation matter in Michigan, Simasko Law is ready to help. We protect inheritances, defend family interests, and work to resolve disputes as efficiently as possible, serving clients throughout Macomb, Wayne, Oakland, St. Clair, and Sanilac Counties.
The sooner you reach out, the more options you have. Call us today to schedule your free consultation.
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