When someone passes away without a will in Wisconsin, their property may need to be transferred through a legal process called heirship. One key part of that process is notarizing an heirship affidavit a document that proves who the rightful heirs are. This step isn’t optional if you’re trying to clear title on real estate or access bank accounts tied to the deceased. Getting it right the first time saves time, stress, and potential delays.

What exactly is a notarized heirship affidavit?

An heirship affidavit is a sworn statement listing the deceased person’s family members and how they’re related. It helps confirm who inherits property when there's no will. In Wisconsin, this document must be notarized before it can be used officially. Notarization means a licensed notary public verifies the identity of the person signing and confirms they did so willingly.

When do you need to notarize an heirship document in Wisconsin?

You’ll typically need a notarized heirship affidavit when dealing with real estate, especially if the property was titled solely in the deceased’s name. For example, if your parent died and left a house to you and your siblings, but the deed doesn’t reflect the new owners, the county clerk or title company will ask for a notarized affidavit to update ownership records.

It’s also common when accessing financial accounts over a certain amount. Banks often require this document before releasing funds to heirs.

Who can sign and notarize an heirship affidavit?

The affidavit must be signed by someone with firsthand knowledge of the family relationships usually a close relative like a child, sibling, or spouse. They must swear under penalty of perjury that the information is true. Then, a notary public must witness the signature and affix their seal and signature.

Notaries are available at banks, law offices, some pharmacies, and even some government buildings. You don’t need a lawyer to notarize the form, but you should bring valid photo ID.

What documents do you need before notarization?

Before heading to the notary, gather these items:

  • Death certificate (original or certified copy)
  • Proof of relationship like birth certificates, marriage certificates, or adoption papers
  • Deed or property records if dealing with real estate
  • Any existing will or trust documents, even if they don’t apply

Having these ready helps avoid delays. Missing paperwork can mean going back to square one.

Common mistakes to avoid

One frequent error is using outdated or incomplete family records. If a sibling’s birth certificate has a different last name due to a name change, make sure that’s explained in the affidavit. Another mistake is skipping the notary step entirely or choosing someone who isn’t authorized. Only licensed notaries can perform this task.

Also, don’t rush the signing. The person signing must understand what they’re swearing to. If the notary sees hesitation or confusion, they may refuse to proceed.

How to prepare the affidavit before meeting the notary

Start by filling out the affidavit form carefully. Use full names, correct spellings, and accurate dates. Include every known heir even those who may have passed away themselves. If someone is deceased, list their children as next in line.

Once complete, review it with another family member if possible. A second set of eyes catches small errors like missing middle names or incorrect dates.

Where to go after notarization?

After the notary signs, you’ll need to file the affidavit where required. For real estate, this usually goes to the county land records office. For bank accounts, send it to the financial institution handling the estate. Each place has its own rules, so check ahead.

To learn more about how the filing process works, see how to submit the affidavit properly. You’ll also want to know which forms are required this guide covers the basics.

Final checklist before notarization

  • ✅ All family relationships are clearly listed with supporting documents
  • ✅ Death certificate is current and official
  • ✅ Affidavit is fully completed and signed by the person with knowledge
  • ✅ Valid photo ID is brought to the notary
  • ✅ Notary is licensed and willing to notarize affidavits in Wisconsin

Double-check everything before showing up. A few minutes of prep now can save hours later.

If you're unsure about any part of the process, consult a local attorney or use resources like the Wisconsin Department of Administration’s guidance on probate matters. Wisconsin’s official state site provides helpful details on estate procedures.