How do you keep your parents from losing their ADU investment or their home if you divorce or die?

By Buz Artiano, BuildX | July 2026

Watch: She Almost Died After Childbirth. Then She Built a Law Firm to Protect Families Like Hers (Law Mom)

Your parents sold the house you grew up in, and they made enough profit to live comfortably. They gave you a big share of it so you could build an ADU in the backyard and they could grow old close to family. Legally they don't own any of it, because the ADU they paid for is on land that belongs to you, and that means the money they spent is legally yours from the beginning of the construction. Most families don't think about that until something happens to make them: a divorce, a death, or a new spouse who decides they'd rather your parents didn't live in the backyard.

My name is Buz Artiano, and I am the founder of BuildX. We've built dozens of ADU projects across Massachusetts, mostly around the South Shore and Plymouth County areas. We are the only team you need: we do the design, permitting, and construction. So we see every phase of a project from the first site visit up until you move in. We evaluate septic constraints, zoning issues, utility connections and the requirement to get a permit from the city.

About 70% of ADUs that are built for family have issues with family dynamics not the construction. We're not attorneys and aren't giving legal advice, but we've seen enough ADU builds to know one thing: the moment money changes hands there is trouble and the time to protect it is at the very beginning.

Here's the part families don't think about. The protection is not something you bolt on after the ADU gets built and a problem comes up. By then your parents are guests in a home they paid for, and have no title and no leverage. The paperwork that keeps their money and their home safe needs to be signed before construction, with an attorney, not after. The risk is there, and so is the solution.

What actually keeps your parents from losing the ADU?

Documents, signed with an attorney before construction starts, that give your parents a right to live in the ADU and keep their money legally separate from your marriage: that's the whole answer. Everything else here is about why those documents matter and what needs to be in them.

Here's why they are necessary: because ownership goes with the land. Whoever owns the ground owns everything that's permanently attached to it, and an ADU is permanently attached. Your parents can write the check, choose the finishes, and plan to live there for the rest of their lives, but none of that will put their names on the title.

Let's talk about a family we will call Jack and Mary. They sell their home for a million dollars, make a profit of about $600,000 after what they owe, and spend about $400,000 building an ADU in their daughter Janet's backyard. The land is Janet's, so the ADU is Janet's. The day it is finished, Jack and Mary don't own it. Their money is now just a building on their daughter's deed.

That works fine until life changes, and there are two changes that can turn it into a crisis: if Janet dies, or Janet gets a divorce. In both cases, the person left owning the property isn't always the person Jack and Mary trusted when they paid for the ADU. The protection has to be in place before either of those things happens and there is a certain reason we encourage families to handle it before we build at all.

There's a time during every one of these projects where this becomes unchangeable, and most families don't even know it. Before we can get a permit on a parent-funded ADU, the property owner has to okay the work, which means Janet and her husband both sign off to let us build on their land with her parents' money. This signature is the checkpoint because it's the last time everyone is in the room, the money hasn't moved and the opportunity is there to get protection recorded. Once the foundation is in and the funds are gone, then the parents' leverage is gone too. The families who get through this part without problems are the ones who got to the permission step and decided to call their attorney then, not those who called after the problems came up.

If you die, can your spouse put your parents out of the home they paid for?

Yes, and it is the situation that families find the most hard to believe. If Janet dies and the property goes to her husband, he owns the land, the main house, and the ADU her parents paid for. Under Massachusetts law, a surviving spouse gets a share of the estate, and depending on the title of the property and if there's a will, that share can include the home itself. You can review how a surviving spouse's share works at mass.gov.

Think about that from Jack and Mary's point of view. Their daughter is gone, the son-in-law owns the property, and if he decides he doesn't want them living in the backyard, he can ask them to leave. The $400,000 they spent gives them no right to stay. They paid for the ADU but he holds the deed to it.

This is not a story about a villain. It's one about what a deed can do when nobody plans around it. The protection is there, but it has to be recorded against the property while everyone is alive and willing. It doesn't do any good if it's discovered by Jack and Mary after the worst has already happened.

If you divorce, is your parents' $400,000 at risk?

It can be, and the issue is where the money was, not just what it built. When Jack and Mary give Janet the money to build the ADU, that money can become marital property the minute it gets to an account that Janet shares with her husband. If the marriage ends, marital property is divided, and a part of what Jack and Mary spent can go out the door with the divorce.

The timing is what makes this a real situation rather than just something that could happen. In the instance that we discuss with families, divorce happens two weeks after the ADU is finished. That's deliberate. It shows this isn't just a risk that only matters years later, it can happen right away.

Marital property is the term for assets a couple acquires or brings together during a marriage, and the mixing can be the trap. Money the parents contributed that clearly stays separate and is documented as their contribution is much easier to protect than money that went through a joint checking account and then on to the builder. That difference isn't one to figure out after a divorce is filed. It's a decision to make before the first dollar is moved.

Why won't a builder be the one to protect this money?

Because we build ADUs. We don't write occupancy agreements, we don't record life estates, and we don't write trusts. Any builder who tells you they will handle your estate planning along with your foundation is one to walk away from. The document that protects your parents must come from a licensed attorney. For the agreement that ties their occupancy to the property, that means you need a real estate attorney, while the estate and trust side should be handled by an estate-planning attorney.

You should get more than one opinion. We have had four different attorneys on these same family scenarios, and each one had a little different fix, because the right one depends on your family, your title, and your goals. That's not a reason to skip the conversation. It's a reason to have it with someone whose job is to protect your side of it.

Here's the honest part. If your family can't talk about the money situation together, before construction, the paperwork won't help you. The things that will protect your parents work because everyone signs them willingly while the relationships are intact. If you can't get there, an ADU on your child's land might not be right for your family, and that's worth finding out before you spend the $400,000, not after.

What can you put in writing before you break ground?

When we brought this story to Sam Allen, an estate-planning attorney at Law Mom here in Massachusetts, she gave us a set of tools families use to keep the parents' money and home protected. She made it clear she doesn't do the property agreement herself and would have a real estate attorney for that, so think of everything here as ideas to talk to your own attorney about. What matters is that these get decided on before construction, because every one of them is easier to do while the family is together and the money hasn't moved.

These are paperwork that you fill out on your own. Each one is something you decide and then an attorney turns into a recorded document, and the reason we encourage families to start before we begin construction is simple. Once the ADU is standing and the $400,000 is spent, your parents have already taken all of the risk and have none of the protection. The paperwork is inexpensive compared with what it protects.

Protect the money before you pour the foundation

For a family that's spending hundreds of thousands of dollars for an ADU on a child's land, the build is the easy part. The hard part is making sure the parents who paid for it can't be forced to move because of a divorce or a death nobody knew was coming. That protection is a set of documents, signed with an attorney, before construction starts. We can tell you where the build ends and that begins. The one thing we won't let a family do is spend the $400,000 first and ask the question later.