Who Qualifies as an Heir Under Massachusetts Law

When someone passes away in Massachusetts without a will, their property doesn't just sit in limbo. It needs to pass to the right people and figuring out who those people are is the whole reason the affidavit of heirship exists. If you're trying to transfer real estate, bank accounts, or other assets of a deceased family member, you need to know exactly who qualifies as an heir before you can file anything. Get this part wrong, and your affidavit could be rejected, delayed, or even challenged down the road.

What does "heir" actually mean under Massachusetts law?

In everyday language, people use "heir" loosely to mean anyone who inherits something. But under Massachusetts intestate succession law, the term has a specific legal meaning. An heir is a person who is entitled to receive a share of a deceased person's estate when that person died without a valid will (also called dying "intestate").

This matters because the affidavit of heirship is typically used only when there's no will. If a will exists, the probate court process handles distribution instead. You can learn more about what an affidavit of heirship is under Massachusetts probate law and how it fits into the bigger picture.

Who qualifies as an heir under Massachusetts intestate succession?

Massachusetts General Laws Chapter 190B, specifically the intestate succession provisions, sets out a strict order of priority. The law doesn't leave this up to family agreements or assumptions. Here's how it breaks down:

Surviving spouse

A surviving spouse is almost always an heir. But the size of their share depends on who else survived the deceased:

If there are no surviving children or parents the spouse inherits everything.
If there are surviving children (all from this marriage) the spouse inherits everything.
If there are surviving children from a different relationship the spouse receives the first $100,000 plus half of the remaining balance. The children receive the rest.
If there are surviving parents but no children the spouse receives the first $200,000 plus three-quarters of the remaining balance. The parents receive the rest.

Children and their descendants

Children of the deceased are heirs. This includes:

Biological children
Legally adopted children
Children born outside of marriage (if paternity is established)

If a child of the deceased died before the deceased but had children of their own, those grandchildren step in. This is called inheritance by representation the grandchildren split what their parent would have received.

Parents

If the deceased had no surviving spouse, no children, and no grandchildren, then the parents of the deceased are next in line.

Siblings and their descendants

If there are no surviving spouse, children, or parents, brothers and sisters of the deceased inherit. If a sibling predeceased the deceased, that sibling's children (nieces and nephews) take their share.

Extended family

If none of the above are alive, the law continues down the family tree:

Grandparents
Aunts and uncles (and their children)
Great-grandparents
Great-aunts and great-uncles (and their children)

If absolutely no heirs can be found, the estate passes to the Commonwealth of Massachusetts known as escheat.

For a deeper look at the legal requirements tied to these heirship rules, review the full legal requirements overview for heirship qualifications.

Does a surviving spouse automatically qualify as the sole heir?

Not always. This is one of the most common misconceptions. Many people assume that a married person's spouse gets everything. As outlined above, the presence of children from another relationship or surviving parents can change the distribution significantly. Before filing an affidavit, you need to account for all potential heirs, not just the most obvious ones.

What if someone was estranged or hadn't been seen in years?

Massachusetts law doesn't have an "estrangement" exception. A legally qualifying heir is an heir regardless of whether they had a relationship with the deceased. If the deceased had an adult child they hadn't spoken to in 20 years, that child is still an heir and must be identified in the affidavit.

Failing to list a known heir even one you think shouldn't inherit is a serious error. It can invalidate the document and expose the filer to legal liability.

Do stepchildren or half-siblings count as heirs?

Stepchildren do not qualify as heirs under Massachusetts intestate law unless they were legally adopted by the deceased. A close relationship or years of living together does not create inheritance rights.

Half-siblings, on the other hand, do count. They inherit the same share as full siblings.

How do you prove someone is an heir for the affidavit?

The affidavit of heirship requires you to identify all heirs and describe how each one is related to the deceased. Typically, the person signing the affidavit (called the affiant) must be someone who has personal knowledge of the family often a relative, close friend, or someone who knew the deceased for many years.

Supporting documents often include:

Death certificate of the deceased
Birth certificates showing parent-child relationships
Marriage certificates
Divorce decrees (to show prior marriages and children from those marriages)
Adoption records (if applicable)

The affidavit itself is signed under oath, meaning the affiant is legally swearing that the information is true. Filing false information in an heirship affidavit is perjury. If you need help understanding the specific filing steps, see how to file an affidavit of heirship in Massachusetts.

Common mistakes people make when identifying heirs

Messing up the heir identification is the number one reason affidavits get rejected or cause problems later. Here are the errors that come up most often:

Forgetting children from prior marriages. The deceased may have had children from a relationship decades ago. These children are still heirs.
Assuming a will covers everything. If the will doesn't address all property (for example, property held outside the will), the affidavit may still be needed. And if the will is invalid, intestate rules apply.
Not accounting for deceased heirs. If a child of the deceased died before them but had their own children, those grandchildren must be listed.
Skipping the search for heirs. You can't just assume no one else exists. A reasonable search of family records and relationships is expected.
Listing only willing heirs. An heir who doesn't want their share is still an heir. They may need to formally disclaim their interest.

When is an affidavit of heirship the right tool?

An affidavit of heirship works best in straightforward situations when the family agrees on who the heirs are, there are no disputes, and the main goal is to transfer real property (like a house or land) without going through full probate.

It's commonly used when:

The deceased owned real estate with no other way to clear the title
The estate is small and uncomplicated
All heirs are in agreement
There is no will, or the will doesn't cover the specific property

For more on the specific requirements for transferring property this way, see the requirements for Massachusetts real estate transfers using an affidavit of heirship.

Is an affidavit of heirship always enough, or do you sometimes need probate?

An affidavit of heirship is not a substitute for probate in every situation. If there are disputes among heirs, unclear family relationships, significant debts, or complex assets, probate court may be necessary. Some title companies and financial institutions also won't accept an affidavit alone they may require a court order.

Understanding the differences between these two approaches can save you time and money. This comparison of the affidavit process versus probate court breaks down when each one makes sense.

Practical tips before you file

Do your homework on the family tree. Talk to multiple relatives, check public records, and don't make assumptions.
Get the affiant right. The person signing should be someone independent with strong personal knowledge of the family not necessarily an heir.
Include every heir. Even if someone is missing, uncooperative, or unknown, acknowledge them in the document.
Have the affidavit notarized. Massachusetts requires it.
Record it at the Registry of Deeds. The affidavit has no effect on property records until it's recorded in the county where the real estate is located.
Consider talking to a probate attorney. Even if the situation seems simple, a brief consultation can catch issues you might miss.

Quick checklist: Is everyone accounted for?

☑ Did the deceased have a surviving spouse?
☑ Did the deceased have children including from prior relationships?
☑ Are any of those children deceased? If so, did they have children of their own?
☑ Are the deceased's parents still living?
☑ Did the deceased have siblings (full or half)?
☑ Were any stepchildren legally adopted?
☑ Have you searched for any family members you may not know personally?
☑ Is there a will that could affect who inherits?

Once you've worked through these questions and confirmed who qualifies, the next step is preparing and filing the affidavit correctly. Review the step-by-step filing process to make sure every detail is handled the right way from the start.

Reference: Massachusetts General Laws Chapter 190B, Article II Intestate Succession and Wills