GUIDE · UPDATED NOVEMBER 2026
Can a Notary Notarize for Family Members in Massachusetts?
Which relatives are off-limits, the conflict-of-interest rules and what to do instead.
Can a notary notarize for family members in Massachusetts?
Not for close family. Massachusetts law prohibits a notary from performing a notarial act when the notary is the signer's spouse, domestic partner, parent, guardian, child or sibling, and the rule extends to in-law, step and half relatives. A notary also may not notarize a document they are a party to or named in, or one in which they have a financial interest. Other relatives, such as cousins, are not covered by the family rule, but the conflict-of-interest rules still apply, so many notaries refer every relative to someone independent.
Key points
- No notarizing for a spouse, domestic partner, parent, guardian, child or sibling.
- The ban includes in-law, step and half relatives.
- No notarizing documents you are named in or would benefit from.
- When in doubt, use an independent notary.
What the law says
The rules are in M.G.L. c. 222, § 16. A Massachusetts notary may not perform a notarial act if the notary is a spouse, domestic partner, parent, guardian, child or sibling of the principal, including in-law, step or half relatives. The same section bars a notary who is a party to or named in the document, or who has any financial interest in its subject matter, with narrow exceptions for attorneys.
Who counts as family
| Relationship to the signer | Can a Massachusetts notary notarize? |
|---|---|
| Spouse or domestic partner | No |
| Parent or child | No |
| Sibling | No |
| Guardian | No |
| In-law, step or half relatives in those relationships (for example, a mother-in-law, stepson or half-brother) | No |
| Other relatives, such as cousins, aunts, uncles, nieces or nephews | Not barred by the family rule, but the notary still may not act if named in the document or financially interested |
| Friends, coworkers and neighbors | Allowed, if the notary is not a party, not named and has no financial interest |
The narrow exception
The family rule has an exception for wills and other legal documents prepared by a licensed attorney who is the notary, or by the attorney's employer, when the relative serves only as a witness. It does not allow a notary to notarize a relative's own signature in ordinary situations.
Why the rule exists
A notary must be impartial. A relative may benefit from the document, may be pressured to overlook a problem or may later be accused of doing so. An independent notary protects the signer, the family and the document, especially for powers of attorney, deeds and estate plans, where a challenge can come years later. See power of attorney for an elderly parent: why the signing matters.
Need an independent notary?
We come to you anywhere in Boston and across Massachusetts.
What happens if a relative notarizes anyway
A notarization performed in violation of the statute can be challenged, and the recipient may reject the document. The notary may also face discipline, including possible revocation of the commission. Redoing the notarization with an independent notary is far easier than defending a flawed one later.
If you are a notary
- Decline politely and refer your relative to an independent notary.
- Check whether you are named in the document, even as an agent, executor or successor trustee.
- Consider whether you or your spouse would benefit from the document.
- Remember that the family rule covers in-law, step and half relatives.
See What a Massachusetts Notary Can and Cannot Do.
How we help
When a family member cannot notarize, we can. We come to homes, offices, hospitals and senior living communities anywhere in Boston and across Massachusetts, and we bring an independent perspective to family signings.
Sources
Requirements can change. Always follow the current instructions from the Commonwealth.
Frequently asked questions
Can a notary notarize for their spouse in Massachusetts?
No. Massachusetts law bars a notary from notarizing for a spouse or domestic partner.
Can I notarize for my mother-in-law or stepchild?
No. The Massachusetts rule extends to in-law, step and half relatives of the prohibited relationships.
Can a notary notarize for a cousin?
Cousins are not listed in the family rule, but the notary still may not act if named in the document or financially interested. Many notaries refer all relatives elsewhere.
Can a notary notarize a document they are named in?
No, with narrow exceptions, such as a notary named only to receive notices or certain attorneys serving as fiduciaries.
What should I do if my relative is a notary?
Use an independent notary instead. It protects the document from challenge and keeps your relative in compliance.
Need an independent notary?
We come to you anywhere in Boston and across Massachusetts.