Letters Testamentary vs Administration in Michigan

When someone dies in Michigan, their estate doesn't just transfer automatically. Someone has to step up and handle the debts, property, and financial accounts left behind. But the legal document that gives this person authority depends on one key question: did the deceased leave a valid will? That's where letters testamentary and letters of administration come in and understanding the difference can save you weeks of confusion and prevent costly mistakes in probate court.

What Are Letters Testamentary in Michigan?

Letters testamentary are court-issued documents that grant authority to a person named as executor in a deceased person's will. When someone dies with a valid will, the person they chose to manage their estate needs formal legal permission from the probate court before they can do anything pay bills, access bank accounts, sell property, or distribute assets.

The court reviews the will, confirms it's valid, and then issues letters testamentary to the named executor. Once these letters are in hand, the executor can act on behalf of the estate. Without them, banks, title companies, and financial institutions won't recognize the executor's authority.

If you've been named executor in someone's will and need to understand the full process, our guide on how to get letters testamentary in Michigan step by step walks through the filing requirements in detail.

What Are Letters of Administration in Michigan?

Letters of administration serve the same basic function they give someone legal authority to manage a deceased person's estate but they apply when there is no valid will. In this situation, Michigan probate court appoints a personal representative (Michigan's term for administrator) to handle the estate.

Michigan's intestate succession laws determine who gets priority for appointment. Typically, the surviving spouse has first priority, followed by other heirs. If no family member steps forward, a creditor or another interested party may petition the court.

The process for obtaining letters of administration is outlined in Michigan Compiled Laws § 700.3203, which sets out the order of priority for appointment when there's no will.

What's the Actual Difference Between These Two Documents?

The core difference is straightforward:

Letters testamentary issued when a valid will exists and names an executor
Letters of administration issued when there is no will (or the will doesn't name an executor, or the named executor can't serve)

Both documents accomplish the same thing: they give someone the legal power to act for the estate. But the path to getting them is different, and the person who receives them may be different too.

With letters testamentary, the court usually honors the person the deceased chose in their will. With letters of administration, the court follows a statutory priority list because the deceased never expressed a preference.

Does the Executor's Power Differ Between the Two?

The scope of authority is essentially the same. Whether you hold letters testamentary or letters of administration, you can collect assets, pay valid debts, file tax returns, and distribute remaining property to beneficiaries or heirs. The difference isn't about what you can do it's about how you got appointed and who you're distributing to.

With a will, you distribute according to the deceased person's wishes. Without a will, Michigan's intestacy laws decide who inherits.

When Does This Distinction Actually Matter?

This distinction comes up in several real-world situations:

Accessing bank accounts. A bank won't release funds without the correct letters. If the deceased had a will, they'll ask for letters testamentary. No will? They need letters of administration.
Selling real estate. Title companies require the correct probate letters before they'll process a sale of estate property.
Filing lawsuits on behalf of the estate. If the estate has a claim against someone, the personal representative needs proper authority to pursue it.
Paying estate debts. Creditors need to know who has legal authority to settle accounts.

In practice, if you show up with the wrong type of letters, you'll hit a wall. A financial institution won't process your request just because you're "close enough." The paperwork has to match the situation.

How Do You Know Which One You Need?

Start with the most basic question: did the person who died leave a valid will?

If yes, the will typically names an executor. That person files the will with the probate court and petitions for letters testamentary. The court appointment process and required documents are covered in our resource on Michigan probate court executor appointment requirements.

If no will exists, someone usually a spouse, adult child, or other close relative petitions the court for letters of administration. The court then appoints a personal representative following Michigan's priority rules.

There's also a gray area: what if a will exists but the named executor has died, refuses to serve, or is otherwise unable to act? In that case, the court may issue letters of administration even though a will exists. The will still controls who inherits, but the court picks a different person to manage the estate.

What Documents Do You Need to File?

The filing requirements overlap but aren't identical:

For Letters Testamentary:

The original will
A petition for probate of will and appointment of executor
Death certificate
Acceptance of appointment by the named executor
Any required notices to interested parties

For Letters of Administration:

A petition for administration (stating there is no will)
Death certificate
Acceptance of appointment by the proposed personal representative
A list of heirs
Required notices to interested parties

The specific forms and filings vary by county, so it's worth checking with your local probate court. Michigan's probate courts are organized by county, and some have local rules that add requirements on top of the state-level forms.

Common Mistakes People Make

Here are the errors that cause the most trouble:

Assuming you can act without court authority. Being named in a will doesn't make you executor automatically. You need the court to issue letters first. Our article on personal representative authority without letters testamentary explains why acting too early creates legal problems.
Filing for the wrong type of letters. If a will exists but you file for letters of administration, the court will send you back. If there's no will and you file for letters testamentary, the same thing happens.
Not giving proper notice to heirs and beneficiaries. Michigan law requires you to notify specific people. Skipping this step can delay the process or lead to objections.
Assuming informal proceedings always apply. Michigan allows both formal and informal probate. Informal proceedings are faster, but not every estate qualifies.
Waiting too long to file. Delays can create problems with creditors, property maintenance, and taxes. Understanding how long it takes to receive letters testamentary after filing can help you set realistic expectations.

Do You Need a Lawyer to Get These Letters?

Michigan doesn't technically require you to hire a probate attorney. But here's the honest reality: probate court procedures have specific rules, deadlines, and forms that trip up people who try to handle it alone. A single missed notice or incorrect form can set you back weeks.

For simple estates, many people successfully navigate the process themselves, especially in informal proceedings. For contested situations, larger estates, or cases with complicated assets (like out-of-state property or business interests), an attorney is strongly recommended.

How Long Does It Take to Get Either Type of Letter?

For informal proceedings with no complications, letters testamentary or letters of administration can sometimes be issued within a few weeks of filing. Formal proceedings required when there are disputes or complications take longer because they involve a court hearing.

Factors that affect timing include:

Whether the probate petition is contested
Court backlog in your county
Whether all required documents are filed correctly the first time
Whether proper notice has been given to all interested parties

Quick Checklist Before You File

Before heading to the probate court, make sure you've handled these items:

Confirm whether a will exists. Check safe deposit boxes, home files, and ask the deceased person's attorney if they had one.
Get certified death certificates. Order multiple copies you'll need them for banks, insurance companies, and other institutions.
Identify the correct petition. Will exists with a named executor? File for letters testamentary. No will? File for letters of administration.
Gather required documents. Review your county's specific probate court requirements before submitting anything.
Prepare your notice list. You'll need to formally notify heirs, beneficiaries, and in some cases creditors.
Don't act as executor or administrator until the court issues your letters. This is the single most common source of legal trouble for personal representatives in Michigan.

Understanding the difference between these two types of probate letters isn't just a legal technicality it determines how the entire estate administration process unfolds. Getting it right from the start keeps the process moving and protects you from personal liability down the road.