Estate & Legacy

Taking Over a Parent's Trust When They Have Dementia

My mom never had a trust. She had a will, a power of attorney we signed later than we should have, and a filing drawer I went through one page at a time.

For a while I assumed that put us behind the families who'd done it properly. Then I started hearing from people whose parents did have one, signed years ahead of any diagnosis, and it hadn't handed them anything either. A trust doesn't fail the way a missing document fails. It fails on its own terms, with conditions you have to satisfy before it does anything for you.

How do I take over my parent's trust when they have dementia?

You step in as successor trustee, and the trust itself is what puts you there. No judge appoints you. Your power of attorney doesn't do it. Somewhere in those pages your parent named whoever takes over when they can no longer manage, and if that name is yours, the authority is already waiting to be claimed.

Claimed is the word that matters. Being named doesn't make you trustee today. The trust sets a condition, almost always some version of when the current trustee can no longer manage their own affairs, and until that's documented the way the trust asks, you're a name on a page.

What does the trust require before I can act?

Read the incapacity section before you call anybody. It's usually one short paragraph, headed something like "Incapacity of Trustee" or "Resignation and Succession," and it spells out exactly what proof it wants.

Most ask for a letter from a physician confirming your parent can no longer handle their financial affairs. Some want two. Some name a specialty, or hand the decision to a committee of family members. A few send you to court, which is the slow road and much better learned about now than at a bank counter.

That paragraph is your instruction sheet. Families lose weeks fetching the wrong kind of letter because they asked an institution what it needed instead of asking the trust.

Why won't the bank look at the whole trust?

Usually because it doesn't want to, and the short document it wants instead is called a certification of trust.

That's the piece most families have never heard of. A trust is long, and it's private. Most states let a trustee hand over a brief sworn summary in its place: that the trust exists, when it was signed, who's serving as trustee now, and what powers they hold. The bank can ask for the pages naming you and granting the power in question, but generally not the rest.

Ask whoever drafted the trust to prepare one. Small job on their end, and it's the paper that actually gets slid across the counter. If the branch digs in anyway, that's not a trust problem any more. It's the same document-rejection fight that shows up with powers of attorney, and it escalates the same way.

What if there's a trust but nothing is in it?

Then it reaches almost nothing, and this is the one that ambushes the most families.

A trust controls only what was actually retitled into it. Moving the house, the accounts, the brokerage into the trust's name is a separate job from signing the binder, and it's the one people skip. A parent signs, feels finished, and the checking account sits in their own name for the next decade. You can be successor trustee of an empty container.

Which is why you want both documents. Everything outside the trust is the power of attorney's territory, and if there's no power of attorney either, that's a harder road with fewer exits. Pull the deed and read the name on it. Pull statements and see how each account is titled. If you're not sure what your parent even owns, finding that out is its own project, and it comes first.

Sequencing like this is most of what the full guide is for, if you'd rather not work out the order while you're already behind.

What if my parent won't go to the doctor?

Then you're stuck at the one step you can't do on their behalf, and it stops more families than the tidy version of this admits.

The trust wants a physician's opinion, which takes an appointment, and a parent who doesn't believe anything is wrong has no reason to sit through one. Least of all if they sense what the letter is for. That resistance is rarely about you, though it will feel that way.

What works is not making the visit about the letter. A routine checkup. A medication review. A quiet word with the office beforehand about what you need documented. If your parent already sees a doctor who knows them, start there, not with a new specialist who'll meet them once and see someone perfectly charming.

If nothing works, the fallback is court. Slow, public, expensive, and precisely what every one of these documents was signed to avoid.

What should I do this week?

Find the trust and read two paragraphs of it: the one naming the successor trustee, and the one on incapacity. The rest can wait.

Then find out what's genuinely funded into it, and call the attorney whose name is on the signature page. They've run this handoff many times, and can tell you in one conversation whether your parent's version has anything unusual buried in it.

If your parent still has capacity today, that's also the call where you ask what ought to be signed while they still can. Capacity is judged at the moment of signing rather than by a diagnosis, so the door isn't always as closed as families assume. It just closes quietly, usually before anyone thinks to check.

I've never once heard from a family who regretted starting too early.

Frequently asked questions

Does a power of attorney let me act as trustee of my parent's trust?

No. Those are separate roles from separate documents. A power of attorney appoints an agent over property held in your parent's own name. A trustee manages property titled in the trust's name. Most families need both, because the assets sit on both sides of that line.

What proof do I need to become successor trustee for a parent with dementia?

Whatever your parent's trust says, which is usually a letter from a physician stating they can no longer manage their own financial affairs. Some ask for more than one letter, name a specialty, or set out a different process entirely. Read the incapacity clause first, then go get exactly that.

Can I take over the trust if my parent never moved anything into it?

You can hold the role, but it will not reach much. A trustee's authority covers only what was actually retitled into the trust's name. Anything still held in your parent's own name falls to a power of attorney instead, or to a court if there is not one.

This isn't legal or financial advice — it's a plain-language account of how this plays out in real families, written from managing my own mom's finances since her diagnosis. What a particular trust requires before a successor trustee may act, how many physician letters it takes and who may write them, whether a certification of trust is accepted and what it must contain, what a bank may ask for beyond it, and what happens to assets that were never retitled into the trust all vary by state, by institution, and by the wording of the document your parent actually signed. Talk to an estate or elder-law attorney licensed where your parent lives, ideally the one who drafted the trust, before acting on any of it.