The Phone Call Nobody Expects to Make
Carol Simmons was forty-seven years old when her mother, Dorothy, received the diagnosis. Dorothy was seventy-four, still living independently in the same house in Plano she had owned for thirty-one years, still driving to the grocery store, still calling Carol every Sunday morning. The neurologist's word was "early-stage Alzheimer's disease," and after the appointment Carol drove home on the Dallas North Tollway and cried the whole way.
The next three weeks were a blur of research, phone calls to siblings, and tearful conversations about the future. When Carol finally sat down to make a practical list of what needed to happen, she focused on the things she could see: handrails for the bathroom, a pill organizer, automatic bill pay, maybe a medical alert bracelet. These were sensible things. They were not, however, the most important things.
What nobody had told Carol — not the neurologist, not the patient advocate at the clinic, not the well-meaning articles she found online — was that the moment her mother received that diagnosis, a legal clock had started. Not metaphorically. Concretely. The diagnosis created a set of time-limited windows during which critical legal steps were still available to Dorothy — windows that would shrink and eventually close as the disease progressed. Some of those windows, once closed, cannot be reopened. Some of them, once missed, have consequences that last the rest of Dorothy's life and beyond.
Carol did not know any of this. She found out eight months later, when Dorothy's condition had progressed enough that a routine question from her elder law attorney — "Is your mother able to sign documents in a way that demonstrates she understands what she is signing?" — produced a long, uncomfortable pause.
What the Diagnosis Actually Changes
A dementia diagnosis does not, by itself, strip a person of legal capacity. That is an important distinction, and one that families often miss — sometimes in both directions. They either assume that a diagnosed person can no longer make any legal decisions (and so they stop including them), or they assume that because the person is still functioning, there is no urgency (and so they defer).
The legal standard for capacity under Texas law is task-specific, not global. A person has testamentary capacity — the capacity to make or revoke a will — if they understand the nature of the act, know the extent of their property, know who their natural heirs are, and understand how those elements relate to each other. Under Texas Estates Code § 251.002, this is a relatively low standard, and many people in the early stages of Alzheimer's continue to meet it for months or even years after diagnosis.
A person has capacity to execute a durable power of attorney — the document that designates someone to manage their finances — if they understand what they are signing, what authority they are granting, and to whom. Again, early-stage dementia does not automatically eliminate this capacity. A person has capacity to execute a medical power of attorney if they understand the nature of the document and can communicate a choice about their healthcare decision-maker.
But capacity is not static. It is a snapshot of a person's mental state at a specific moment, and in Alzheimer's disease, that snapshot degrades. The trajectory may be gradual or it may be punctuated by sudden steps down. What is certain is the direction. At some point — and nobody can say exactly when — the window closes. At that point, a person who has not yet executed a power of attorney can no longer execute one. A person who has not yet updated their will can no longer update it without challenge. The only remaining path to legal authority over that person's decisions, finances, and healthcare is court-ordered guardianship — a process that is expensive, time-consuming, public, and emotionally draining for the entire family.
The diagnosis is the signal that this window exists and that it will not stay open.
The Three Documents That Must Exist Before Capacity Is Gone
When an elder law attorney meets with a family in the days or weeks after a dementia diagnosis, the first order of business is almost always a capacity assessment — an attorney's judgment about whether the diagnosed person can currently execute the documents that need to be executed. If the answer is yes, the attorney moves quickly. If the answer is no, the conversation pivots entirely to guardianship planning.
The three documents that must be in place before cognitive capacity is lost are these:
1. Durable Power of Attorney. Under Texas Estates Code § 751.001, a statutory durable power of attorney is "durable" precisely because it survives the incapacity of the person who signed it. Without this document, no one has legal authority to manage a person's finances after they lose capacity — not a spouse, not an adult child, not a longtime partner. The bank will not accept instructions. The brokerage will not rebalance investments. Bills may go unpaid. Property cannot be sold, transferred, or refinanced. The only remedy is a court-ordered guardianship of the estate, which requires a judge's finding of incapacity, a guardian's bond, and annual accountings filed with the court. The durable power of attorney prevents all of that — but only if it is executed while the person still has capacity to sign.
2. Medical Power of Attorney. Under the Texas Health & Safety Code Chapter 166, a medical power of attorney designates an agent to make healthcare decisions on a person's behalf when they are unable to make those decisions themselves. This document becomes critical when a dementia patient is hospitalized, needs surgery, or faces end-of-life care decisions. Without it, healthcare providers are required to follow a statutory priority hierarchy — spouse, then adult children, then certain other relatives — and any disagreement among those relatives can create paralysis or conflict at the worst possible moment. The medical power of attorney lets the diagnosed person choose, while they still can, who will speak for them and what values should guide those decisions.
3. Directive to Physicians (Living Will). Also authorized under Texas Health & Safety Code Chapter 166, the Directive to Physicians — commonly called a living will — allows a person to specify, in advance, what life-sustaining treatment they do or do not want in various end-of-life scenarios. For a patient with Alzheimer's disease who will eventually reach a terminal stage, this document lets them articulate preferences while their voice is still their own: not a family member's guess, not a doctor's default, but their own stated wishes documented in a legally binding form.
Each of these documents is straightforward to execute when a person has capacity. Each of them is impossible to execute once capacity is gone.
The Medicaid Clock: Why Every Month Matters
Beyond the immediate capacity documents, a dementia diagnosis triggers a second, parallel clock: the Medicaid look-back period.
Texas Medicaid for long-term care — specifically, the program that pays for nursing facility costs when a person's own resources are depleted — applies a 60-month (five-year) look-back period to asset transfers. Under 42 U.S.C. § 1396p and the Texas Medicaid rules that implement it, any asset transferred for less than fair market value within five years of a Medicaid application is presumed to have been made for the purpose of qualifying for Medicaid. The result is a penalty period during which the applicant is ineligible for Medicaid nursing home benefits, measured by dividing the transferred amount by the average monthly cost of nursing home care in Texas (approximately $7,600 as of 2024).
Families who act immediately after a dementia diagnosis — transferring assets to children or into protective trust structures — can potentially complete a full five-year look-back clock before their loved one needs nursing home Medicaid. A person diagnosed with early-stage Alzheimer's at seventy-four who begins Medicaid planning immediately might not need nursing home care until their late seventies or early eighties. If the look-back window starts running on the day of the first asset transfer, there is a realistic possibility that it expires before the Medicaid application is filed.
But every month of delay is a month subtracted from that window. A family that waits eighteen months after diagnosis — because they did not know the clock was running — starts the look-back period eighteen months late. If the patient reaches a nursing home level of care in year five rather than year seven, there may be no clean look-back window at all.
The irony is that the early stages of dementia are precisely when the family least feels the urgency. The person is still functional. There are good days and bad days. The nursing home seems far away. These are exactly the conditions that cause families to delay, and the delay is exactly what the Medicaid system's look-back period is designed to capture.
Questions about elder law? A WG Law attorney can walk you through your options.
What Cannot Be Undone Once Capacity Is Lost
Some of the most painful conversations in elder law happen not at the time of diagnosis, but months or years later — when a family arrives at an attorney's office with a parent who can no longer sign documents, and they want to know what can still be done.
The honest answer is: less than they hoped, and less than would have been possible earlier.
A person who lacks capacity cannot execute a new power of attorney, revise their estate plan, sign a trust document, or make any binding legal disposition of their property. Their prior estate plan — whatever it said, however outdated it may be, however much circumstances have changed — is locked in place unless a court intervenes. An estranged child named as executor in a 1998 will cannot be replaced. A former spouse who was never removed from a beneficiary designation cannot be removed. A property intended for the grandchildren cannot be retitled without court involvement.
Guardianship of the estate — the court proceeding that grants legal authority to manage an incapacitated person's finances — can accomplish some of these objectives, but not all. Guardians have legal authority to manage existing assets, pay bills, and make investment decisions within court-approved parameters. What a guardian typically cannot do without additional court approval is make gifts, transfer assets to a trust, or restructure the estate in ways that serve Medicaid planning purposes. The court's job is to protect the ward's estate, and it views Medicaid planning strategies with scrutiny. The planning strategies that would have been simple, private, and efficient when the person had capacity become contested, expensive, and uncertain after incapacity.
The Conversation to Have This Week
Families who receive a dementia diagnosis for a parent or spouse face an overwhelming number of decisions simultaneously. The medical ones — neurologist follow-ups, medication management, driving safety — feel most immediate, because the person in front of them is still there and still needs daily care. The legal and financial ones feel distant, abstract, and uncomfortable to discuss, because they require imagining a future that nobody wants to think about yet.
But the legal window is open now. It will not stay open indefinitely. The most important call to make in the weeks after a diagnosis is not to a geriatric care manager or a memory care community — it is to an elder law attorney, while the person who has been diagnosed can still participate in the decisions being made about their own life.
The questions that conversation should address: Does the diagnosed person currently have the capacity to execute power of attorney documents, a medical directive, and any updates to their estate plan? What is their current financial picture, and when might the Medicaid look-back clock appropriately begin? Who is the right person to serve as agent under the power of attorney, and do they understand what that role requires? Is there real property — a home in Plano, a ranch in McKinney, a rental property in Frisco — that needs to be addressed in the estate plan? Are there assets that could be protected through a trust structure executed while capacity is present?
None of these conversations are easy. All of them are easier now than they will be in six months.
What Happened with Dorothy
Carol Simmons's mother Dorothy still had the capacity to sign documents when Carol finally brought her to an elder law attorney — but barely. The attorney's notes from their meeting describe an appointment that started strong and faded: Dorothy was oriented to person and place, understood the general nature of a power of attorney, and was able to designate Carol as her agent. By the end of the appointment, she was fatigued and repeating questions she had asked twenty minutes earlier.
They executed the durable power of attorney, medical power of attorney, and directive to physicians that day. The attorney also reviewed Dorothy's existing will, which had been written in 2007 and named Dorothy's late husband as executor. They updated the will, named Carol as executor, and established a simple revocable trust that would help manage Dorothy's assets as her condition progressed and ease the administration of her estate when she died.
The Medicaid planning conversation was harder. Eight months had already passed. The look-back clock was eight months late starting. The attorney walked Carol through a realistic projection of Dorothy's care trajectory, the approximate cost of memory care in Collin County, and what planning strategies remained viable given the timing. The news was not as good as it would have been if Carol had come in the week of the diagnosis. But it was better than if she had waited another year.
Carol's advice to anyone in her position is plain: "Call the lawyer first. Before the handrails. Before the pill organizer. Before you start researching memory care communities. Call the lawyer."
Speak with a Texas Elder Law Attorney Now
Taylor Willingham is the founding attorney of WG Law, with more than a decade of experience guiding Texas families through the legal decisions that follow a dementia diagnosis. He has helped hundreds of families in Collin County and throughout the DFW metroplex establish powers of attorney, update estate plans while capacity is present, and build coordinated Medicaid planning strategies that protect assets without closing off future options. WG Law serves clients from offices in McKinney (7701 Eldorado Pkwy, Suite 200) and Southlake (1560 E Southlake Blvd, Suite 100).
If a parent, spouse, or loved one has recently received a diagnosis of Alzheimer's disease or another form of dementia, the time to act is now — while the window is still open. Call 214-250-4407 or contact WG Law to request a consultation with our elder law team.
For related reading, see our guides on when guardianship is needed in Texas and how the process works, the Texas Medicaid five-year look-back period, and why every Texan needs a medical power of attorney. To learn more about WG Law's elder law and Medicaid planning services, visit our elder law practice area page.
This article is for general informational purposes only and does not constitute legal advice. Capacity assessments are fact-specific and require evaluation by a licensed attorney familiar with Texas law and the individual's circumstances. Medicaid eligibility rules, look-back periods, and penalty calculations are subject to change. Nothing in this article creates an attorney-client relationship. Consult a licensed Texas elder law attorney for guidance specific to your situation.