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Massachusetts Law · M.G.L. c. 222 §18 · Conflict of Interest

Can a Notary Notarize for
Family Members in Massachusetts?

Massachusetts does not flatly prohibit notarizing for family members. The rule is narrower and more specific: under M.G.L. c. 222 §18, a notary cannot notarize any document in which they have a personal financial or beneficial interest. Family relationships frequently — but not always — create that interest. Here is how to tell the difference.

HW
Hanson Webb
MA Commissioned Notary · Since 2007
Updated May 2026 8 min read

The Controlling Rule — M.G.L. c. 222 §18

Massachusetts notary law does not prohibit notarizing for family members by name. The controlling provision is M.G.L. c. 222 §18, which lists the acts a notary public may never perform. Among them:

Can a Notary Notarize for Family Members in Massachusetts?
M.G.L. c. 222 §18 — Prohibited Acts
A Massachusetts notary may not perform a notarial act with respect to a record in which the notary or the notary’s spouse, partner, or domestic partner has a personal financial or beneficial interest.
What the statute prohibits
  • Notarizing when the notary has personal financial interest
  • Notarizing when the notary has personal beneficial interest
  • Notarizing when the notary’s spouse or domestic partner has that interest
  • Notarizing their own signature
What it does NOT prohibit
  • Notarizing for a family member when no financial interest exists
  • Administrative documents where the notary gains nothing
  • Notarizing for a relative’s employer or institution that the notary has no stake in

M.G.L. c. 222 §18 — Massachusetts Notary Public Act (2017 comprehensive revision)

The key question is not who the signer is. The key question is whether the notary personally gains — financially or beneficially — from the document being signed. A notary who benefits from a document they notarize has a prohibited conflict, regardless of whether the signer is a stranger or a sibling.

At a Glance — Allowed vs. Not Allowed

These are the most common situations in Massachusetts estate planning, real estate and business practice where the family-notary question arises.

Generally allowed — no financial interest

  • RMV affidavit for a family member’s vehicle correction — notary gains nothing from the outcome
  • CORI authorization for a relative’s employment — administrative, no notary financial stake
  • I-9 employment verification for a cousin — no financial interest in the cousin’s employment
  • Minor travel consent form where the notary is not traveling and gains nothing
  • Affidavit of heirship for a relative’s estate where the notary is not an heir
  • Copy certification of a sibling’s diplomas for international use — no notary stake

Not allowed — financial or beneficial interest exists

  • Will that names the notary as a beneficiary or executor
  • Power of attorney that names the notary as the agent
  • Healthcare proxy that names the notary as the healthcare agent
  • Deed transferring property to or from the notary
  • Trust that names the notary as trustee or beneficiary
  • Any document where the notary is a party
  • Documents that reduce a family member’s estate when the notary stands to inherit

Five Scenarios — Where Each Falls Under Massachusetts Law

These five scenarios cover the situations that come up most often when Massachusetts families with a notary relative face a document that needs notarizing.

Allowed
Scenario 1 — Aunt and nephew · RMV Affidavit of Correction

Aunt Susan needs an RMV Affidavit of Correction to fix a typo on her vehicle title. Her nephew is a Massachusetts-commissioned notary. The affidavit corrects a clerical error — it transfers no property and confers no financial benefit on the notary. The nephew gains nothing from the vehicle title being corrected or not corrected.

No financial interest → allowed. This is administrative notarization with no conflict.
Not Allowed
Scenario 2 — Mother and daughter · New will, daughter is named beneficiary and executor

Mom is signing a new will that names her daughter — who is a commissioned Massachusetts notary — as executor and 50% beneficiary of the estate. The daughter has direct, immediate financial interest in the will being properly executed and in its specific terms. The benefit to the daughter is the same as the benefit to any 50% beneficiary whose parent signs a will.

Direct financial interest → not allowed. Use an independent notary. This is one of the clearest conflict situations in estate planning.
Avoid
Scenario 3 — Brother and sister-in-law · POA that names the notary’s wife as agent

A brother is signing a Power of Attorney naming his sister-in-law — the notary’s wife — as his financial agent. The notary-husband has no direct financial interest listed in the document. But the wife is granted broad financial authority as agent, and the marital financial relationship between the notary and the wife means the notary has indirect beneficial interest in the outcome of any exercise of that POA.

Indirect interest through spouse — M.G.L. c. 222 §18 expressly covers spouse interests. Not allowed; the statute’s spousal provision applies directly here.
Allowed
Scenario 4 — Cousins · I-9 employment verification

A cousin is starting a remote job and needs an I-9 Section 2 completed by an authorized representative in person. The notary cousin has no financial stake in whether the cousin gets this job, how much they earn or what company they join. The notarial act is administrative — verifying identity and document authenticity for federal employment eligibility purposes.

No financial interest → allowed. Administrative I-9 notarization with no conflict.
Not Allowed
Scenario 5 — Father and son · Deed transferring vacation property to the notary-son

A father is signing a quitclaim deed transferring the family vacation house to his son, who is a commissioned Massachusetts notary. The son is the grantee — the direct recipient of the property. The financial interest could not be more direct: the son’s name is on the deed as the person receiving the asset. The value of what the son receives depends entirely on this document being valid.

Direct financial interest as grantee → not allowed. Use an independent notary for all deed transfers where the notary is a party or recipient.

Relationship-Specific Rules

Different family relationships create different risk profiles under M.G.L. c. 222 §18. Here is how the most common relationships play out in practice.

Spouse or Domestic Partner
✗ Presumed conflict for most important documents

M.G.L. c. 222 §18 explicitly names spouses and domestic partners alongside the notary. Any document affecting marital finances, shared property, joint obligations or the other spouse’s assets is off-limits. In practice, this eliminates almost every significant document between spouses: deeds to shared property, refinances, estate planning documents that affect marital assets, wills that affect the marital estate.

For routine administrative documents with no financial component — a spousal affidavit for a government form that has no asset implications — the analysis may differ. When in doubt, use an independent notary. The cost of an independent notary appointment is far less than the cost of a challenged document.

Adult Children and Elderly Parents
⚠ High-risk for estate planning documents

This is the most common situation where family notaries create problems. An adult child who is a commissioned notary is often present when an elderly parent needs estate planning documents. The risk: if the adult child is named in the will, trust, POA or healthcare proxy — as a beneficiary, agent, trustee or healthcare agent — the adult child-notary has a direct conflict under M.G.L. c. 222 §18.

The solution is straightforward: if the adult child-notary is named anywhere in the document, have an independent notary present. If the adult child is not named and has no financial stake, the notarization may be appropriate — but the appearance of conflict in a sensitive family situation still counsels using an independent notary for the most important documents.

Business Partners
✗ Conflict on business documents

A notary who co-owns a business cannot notarize documents related to that business. The financial interest is structural — every business document affects the value of the business and therefore the notary-owner’s stake. This applies to LLC operating agreements, corporate resolutions, business deeds, vendor contracts that affect the business’s financial position and employment agreements that affect company compensation.

An employee-notary with no ownership or profit interest who notarizes routine administrative company documents — CORI forms, I-9 verifications, government filings — generally does not have the prohibited financial interest. The line is ownership and financial stake, not employment.

Extended Family — Cousins, Aunts, Uncles, Siblings-in-Law
✓ Often permitted — analyze each document

Cousins, aunts, uncles and extended family members do not create the automatic financial interest that spouses and domestic partners create under M.G.L. c. 222 §18. Whether a notarization is permitted depends entirely on whether the notary has personal financial or beneficial interest in the specific document — not on the degree of family relationship.

For each document involving extended family, ask: Does this document benefit the notary financially? Does it transfer assets to or from the notary? Is the notary named in the document as a beneficiary, agent or party? If none of those apply, the notarization is likely permitted under Massachusetts law — though using an independent notary for any high-stakes document remains the safest practice.

Where Massachusetts Law Gets Complicated — The Gray Areas

The clearest cases are easy: a notary signing a deed that transfers property to themselves (prohibited), or notarizing a cousin’s CORI form (permitted). The gray areas require more careful analysis.

The Residuary Heir Scenario

A parent’s will leaves the estate equally to three children. One child is a notary. The will does not specifically name the notary-child as executor or in any other capacity — they are simply one of three residuary beneficiaries. Can the notary-child notarize the will?

Analysis: The notary-child has a personal beneficial interest in the will. They inherit one-third of the estate. The validity of the will directly affects their inheritance. Under M.G.L. c. 222 §18, this is a personal beneficial interest — not allowed. The degree of benefit (one-third vs. 100%) does not change the prohibition.

The Indirect Benefit Scenario — Insurance Beneficiary

A notary’s sibling is signing an affidavit related to an insurance claim. The notary is not a beneficiary under the policy. But the sibling’s financial circumstances — which will improve if the claim succeeds — may indirectly benefit the notary through family financial support.

Analysis: Indirect financial benefit through family support relationships is not what M.G.L. c. 222 §18 prohibits. The statute requires personal financial or beneficial interest in the document itself — not in the downstream financial wellbeing of a relative. The notary may proceed. However, for any document where the analysis is this complex, using an independent notary removes all doubt.

The Guardian or Conservator Scenario

A notary’s parent has been appointed guardian of an elderly grandparent. The parent signs documents on the grandparent’s behalf. The notary-child is asked to notarize those documents. The notary has no direct interest in the grandparent’s estate, but the parent — who exercises control over the grandparent’s assets — is the notary’s parent.

Analysis: This is a situation where the appearance of conflict — even absent clear legal prohibition — makes independent notarization the correct choice. Courts reviewing guardianship and conservatorship documents scrutinize the integrity of the entire process. A family notary creates a question that does not need to exist.

“Our standard at Tewksbury Notary: if the analysis requires more than 30 seconds, use an independent notary. The question ‘do I have a financial interest in this document?’ should answer itself immediately. If it does not, step back.”

The Employer-Notary Scenario

Businesses frequently commission employees as notaries for workplace document needs. The employer-notary relationship creates its own conflict analysis — one that does not involve family at all but follows the same M.G.L. c. 222 §18 financial interest test.

When the employee-notary CAN notarize company documents
  • CORI authorization forms for new employees — no financial stake for the notary
  • I-9 employment eligibility documents — administrative compliance
  • Government compliance filings where the notary has no personal stake
  • Vendor contracts where the notary is not a party or beneficiary
When the employee-notary CANNOT notarize company documents
  • Employment agreement for the notary themselves — they are a party
  • Documents related to the notary’s compensation, equity or benefits
  • Business sale or asset transfer documents where the notary is an owner
  • Board resolutions that directly affect the notary’s position or compensation
The owner-notary is almost always in conflict on company documents. A notary who owns an equity stake in the company — even a small one — cannot notarize documents that affect the company’s legal obligations, asset value or capital structure. Their financial interest as an owner is the prohibited interest under M.G.L. c. 222 §18.

What Happens When a Conflicted Notarization Is Challenged

A notarization performed despite a conflict of interest does not automatically void the document. But it creates grounds for challenge that can be used to attack the document’s validity in court, before a registry or with an institution relying on it.

Three Categories of Consequence
Document challenges

Will contests, POA challenges and deed validity disputes can cite a conflicted notarization as evidence of improper execution. The document does not automatically fail — but the challenge becomes stronger. A court or probate judge evaluating a contested will notarized by a beneficiary-notary faces an obvious credibility problem with the notarization itself.

Institutional rejection

Banks frequently reject powers of attorney where the notary is the named agent or a family member with obvious financial interest. The Registry of Deeds may reject deeds where the notary appears to be a party. These rejections happen in real time — at exactly the moment you need the document to work.

Notary personal liability

A notary who performs a notarial act with a prohibited conflict faces: suspension or revocation of the notary commission by the Secretary of the Commonwealth; civil liability if another party suffers a financial loss traceable to the flawed notarization; and potential criminal liability if the conflict involved fraud or was part of a scheme to misuse the notarization.

The re-notarization rule. If a conflicted notarization is discovered before the document is filed or relied on, the fix is straightforward: re-execute the document with an independent notary. The signer signs again in the independent notary’s presence. Once the document has been filed at a registry, used in a legal proceeding or relied on by an institution, the analysis becomes more complex and often requires an attorney.

How to Find an Independent Notary Fast

If you are a notary who has identified a conflict — or a family member who realizes your relative notary should step back — getting an independent notary is simple.

Options in the Merrimack Valley and Greater Boston

Tewksbury NotarySame-day · In-office $45 · Mobile by quote · 978-424-4629
Bank notaryFree for account holders · Weekday hours · Call branch first
FedEx or UPS locationsWalk-in for simple documents · Fees vary
Local mobile notariesNNA Find-a-Notary directory · Mass.gov notary search
RON platformsFor documents where RON is accepted · Confirm first
We handle exactly this situation. When a family notary identifies a conflict and the signing needs to happen the same day — a parent’s healthcare proxy before a procedure, a deed closing on schedule — call us at 978-424-4629. Same-day in-office and mobile appointments are available most weekdays. We step in where family members cannot.

Frequently Asked Questions

Can a Massachusetts notary notarize documents for family members?
Massachusetts does not flatly prohibit notarizing for family members. The controlling rule is M.G.L. c. 222 §18: a notary cannot notarize any document in which the notary has personal financial or beneficial interest — or in which the notary’s spouse or domestic partner has that interest. Family relationship alone does not create that interest, but many family documents do. Always ask whether the notary gains financially or beneficially from the document before proceeding.
What is the Massachusetts statute on notary conflict of interest?
M.G.L. c. 222 §18 lists the acts a Massachusetts notary may never perform. Among them: performing a notarial act with respect to a record in which the notary or the notary’s spouse or domestic partner has personal financial or beneficial interest. The statute also prohibits notarizing the notary’s own signature. This provision was part of the comprehensive 2017 revision of Massachusetts notary law and reflects the national Revised Uniform Law on Notarial Acts.
Can my notary spouse notarize my signature on a deed?
Almost certainly no. M.G.L. c. 222 §18 explicitly covers the notary’s spouse and domestic partner. Most significant documents involving spouses concern marital assets, shared property or joint financial obligations — all of which give the notary-spouse financial or beneficial interest in the document. Use an independent notary for any document affecting shared marital property, the family home, joint accounts or the marital estate.
Can a company’s notary sign documents for the company?
An employee-notary with no ownership interest who notarizes routine compliance documents — CORI forms, I-9 verifications, vendor contracts where the notary is not a party — generally does not have the prohibited financial interest. An owner, officer or equity holder who notarizes documents directly affecting their ownership stake, compensation or liability creates a conflict. Owner-notaries should use an independent notary for any company document with financial implications for them personally.
What happens if a notarization is challenged due to conflict of interest?
A conflicted notarization can be used to challenge the document’s validity in court. For a will, it grounds a will contest. For a POA, it may cause the bank or institution relying on it to reject the document. For a deed, it may ground a challenge to the transfer at the Registry. The notary also faces personal consequences: suspension or revocation of their commission, civil liability for resulting losses, and potential criminal liability if fraud was involved. Re-notarizing with an independent notary before the document is filed is the straightforward fix when the conflict is discovered in time.
Can a notary notarize a healthcare proxy if they are named as the healthcare agent?
No. The healthcare agent has direct decision-making authority — and in some circumstances financial consequences — that flow from the document. The notary named as agent has personal beneficial interest in the healthcare proxy being valid and enforceable. Beyond the legal prohibition, a family notary who is also the named healthcare agent creates grounds for challenging the proxy at the exact moment it needs to be relied on: a medical emergency. Always use an independent notary for healthcare proxies when a family member notary is also the named agent.
What if my relative already notarized a document for me and there was a conflict?
Have an attorney review. If the document has not yet been filed or relied on, re-executing it with an independent notary is the straightforward fix — the signer signs again on a fresh copy, the independent notary completes a proper notarization, and the original conflicted notarization is set aside. If the document has already been filed or relied on, the analysis is more complex and requires legal counsel familiar with Massachusetts estate or property law.
Is Massachusetts stricter than other states about family notarizations?
No — Massachusetts is actually more permissive than some states. Several states prohibit notaries from notarizing for any immediate family member, regardless of financial interest (a blanket prohibition). Massachusetts uses the financial interest test, which is more nuanced: the question is not who the signer is, but whether the notary has personal financial or beneficial interest in the document. Some family-member notarizations allowed in Massachusetts would be prohibited in stricter states.
HW
About the Author
Hanson Webb
Massachusetts Commissioned Notary Public · Owner, Tewksbury Notary

Hanson Webb has practiced under M.G.L. c. 222 since 2007 — through the 2017 comprehensive overhaul that enacted the current §18 conflict-of-interest provisions. When family notaries identify a conflict, Tewksbury Notary provides the independent notary appointment that steps in — same-day most weekdays, mobile or in-office. NNA Certified Signing Agent, background screened, bonded and insured.

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