Letters Testamentary vs Administration in Michigan

If you've been named in a loved one's will or you're trying to settle someone's estate in Michigan, you'll quickly run into two legal terms that sound almost identical but mean very different things: letters testamentary and letters of administration. Confusing the two can delay probate, frustrate the court, and leave you without the legal authority you need to handle the estate. Understanding the differences between these two documents saves time, prevents costly mistakes, and helps you move forward with confidence.

What's the real difference between letters testamentary and letters of administration in Michigan?

Both documents are issued by a Michigan probate court. Both grant someone the legal power to manage a deceased person's estate. But they apply in completely different situations.

Letters testamentary are issued when the person who died (the decedent) left a valid will and named an executor in that will. The court reviews the will, confirms it's valid, and then issues letters testamentary to the named executor. This document gives the executor legal authority to act on behalf of the estate paying debts, distributing assets, filing taxes, and handling property transfers.

Letters of administration are issued when the decedent did not leave a will, or when the will exists but doesn't name an executor, or when the named executor is unable or unwilling to serve. In these cases, the court appoints an administrator usually a surviving spouse, adult child, or another close relative and issues letters of administration to grant that person the same broad authority over the estate.

In short: will with a named executor → letters testamentary. No will (or no usable executor) → letters of administration. That's the core distinction.

When does a Michigan probate court issue letters testamentary?

A Michigan probate court issues letters testamentary after someone files the decedent's will and a petition for probate. The process typically follows these steps:

The will is filed with the probate court in the county where the decedent lived.
A petition is submitted asking the court to admit the will to probate and appoint the executor named in it.
Interested parties are notified, and anyone can object to the will's validity or the executor's appointment.
If no valid objections arise, the court admits the will and issues letters testamentary to the named executor.

Michigan's probate rules for this process are outlined in how to obtain letters testamentary in Michigan probate court. The court also requires specific form requirements and probate court procedures to be followed before the letters are issued.

One important detail: the executor named in the will doesn't have legal authority to act until the court actually issues the letters testamentary. You cannot start selling property, closing accounts, or distributing assets before that point even if you're clearly named in the will.

When does a Michigan probate court issue letters of administration?

Letters of administration come into play when there's no will, or when the will can't be used as intended. Here are the most common scenarios in Michigan:

Intestate death The decedent died without any will at all.
Will doesn't name an executor The will exists but was drafted without naming someone to administer the estate.
Named executor can't serve The person named as executor has died, is incapacitated, has a disqualifying felony conviction, or simply refuses to serve.
Named executor is removed The court removes the executor for misconduct, and no alternate executor is named in the will.

In all of these situations, the court must appoint an administrator. Michigan law gives priority to certain people typically the surviving spouse, then children, then other heirs when deciding who to appoint.

Does the type of letter change how the estate is administered?

The powers granted under both letters are largely the same. Whether you hold letters testamentary or letters of administration, you can:

Collect and inventory the decedent's assets
Pay valid debts and expenses of the estate
File final tax returns
Distribute remaining assets to heirs or beneficiaries
Sell estate property when necessary

The practical difference comes down to who decides what happens. An executor with letters testamentary must follow the instructions laid out in the will. An administrator with letters of administration must follow Michigan's intestate succession laws the state's default rules for how property gets divided when there's no will.

This is a significant difference for families. Without a will, the decedent's wishes even ones everyone in the family knows about carry no legal weight. Michigan's intestate laws will determine who inherits, which may not match what the decedent actually wanted.

You can learn more about what letters testamentary are used for in Michigan estate administration and how the executor's responsibilities compare.

What are common mistakes people make with these two types of letters?

Here are errors that show up regularly in Michigan probate cases:

Assuming you have authority before the court acts. Families sometimes start handling the estate emptying bank accounts, selling a car before getting official letters from the court. This can create legal liability. Your authority starts when the court issues the letters, not when the person dies.
Filing for the wrong type of letter. If a will exists, you should be petitioning for letters testamentary, not letters of administration. Filing the wrong petition wastes weeks and court fees.
Not understanding the timeline. The filing timeline in Michigan can catch people off guard. Courts don't issue these letters overnight, and missing steps along the way creates further delays.
Confusing the letters with the will itself. The letters don't prove the will is fair or correct. They prove the court has recognized the will and authorized the executor to act. Challenges to the will's content are a separate legal matter.
Ignoring bond requirements. Michigan courts sometimes require the executor or administrator to post a bond essentially an insurance policy protecting the estate from mismanagement. This is more common with letters of administration, but it can apply in either case.

How do I know which type of letter applies to my situation?

Ask yourself two questions:

Did the decedent leave a valid will? If no, you need letters of administration.
Does the will name an executor who is willing and able to serve? If yes, you need letters testamentary. If no, you need letters of administration.

If you're unsure whether a will is valid for example, if it was handwritten, was created in another state, or may have been revoked the probate court will make that determination. You don't have to figure it out on your own.

A detailed comparison of both types is available in this breakdown of letters testamentary vs. letters of administration in Michigan.

What should I do right now?

If you're dealing with a Michigan estate, here's a practical checklist to get started:

Locate the will. Check the decedent's personal files, safe deposit box, or contact their attorney. If no will exists, that's your answer you'll be working with letters of administration.
Identify the right probate court. File in the county where the decedent lived at the time of death.
Determine who should petition. The named executor petitions for letters testamentary. The surviving spouse or closest heir typically petitions for letters of administration.
Gather required documents. You'll need the death certificate, the original will (if one exists), and the appropriate petition forms. The Michigan Courts website provides approved probate forms.
Don't act before you're authorized. Wait for the court to issue the letters before making any financial decisions about the estate.
Consult a Michigan probate attorney if the estate involves significant assets, contested heirs, property in multiple states, or any disagreement about the will's validity.

Tip: Michigan law requires that the decedent's will be filed with the probate court within 30 days of death. Even if you're not ready to open probate yet, don't hold onto the will. Failing to file it on time can create legal problems for you later.