Medical Power of Attorney Lawyer in Houston, TX
A medical power of attorney lawyer in Houston drafts a Texas document that names the person you trust to make health care decisions if you can't speak for yourself. It takes effect only when your doctor certifies you can't decide, and it keeps those choices with the person you chose.
Maybe a parent's health is changing, a child just turned 18, or you're facing surgery and want a clear plan. Francisca F. Manchac has helped Houston families plan for more than 18 years, and she pairs your medical power of attorney with a directive to physicians and a HIPAA authorization, so doctors and family know exactly who decides and what you want. Call (832) 263-0935 to schedule a free consultation.
Francisca F. Manchac | Licensed in Texas since 2009 | Last Updated: October 2026

Key Takeaways
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Without a medical power of attorney, Texas law lets family members decide in a set order, which can leave out an unmarried partner or pit adult children against each other.
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A medical power of attorney names who decides, while a Directive to Physicians states your end-of-life wishes, and Texas treats them as separate documents.
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Your health care agent can act only after your attending physician certifies in writing that you can't make your own decisions.
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Texas lets you revoke a medical power of attorney at any time, regardless of your mental state, by telling your agent or provider.
Who Needs a Medical Power of Attorney in Houston?
You need a medical power of attorney if you're 18 or older and want to choose who speaks for you in a medical emergency.
That covers every Houston adult, from college students to retirees. Without one, Texas law decides who makes your medical decisions, and an unmarried partner or close friend may have no say. A medical power of attorney works best alongside a directive to physicians and a durable financial power of attorney, as part of a complete Houston estate plan. The firm drafts planning documents only. It does not handle guardianship cases or disputes over medical decisions, and it refers that work to trusted colleagues.
Common Situations Handled
Most Houston clients sign a medical power of attorney after a life change makes the question feel real.
Young Adults Turning 18
Parents lose automatic access to a child's medical decisions at 18. A medical power of attorney restores it.
Unmarried Partners
Texas law gives an unmarried partner no default role in your care. A medical power of attorney names them directly.
Blended Families
When a spouse and adult children from a prior marriage may disagree, naming one agent avoids conflict at the bedside.
Aging Parents
Planning before memory or health declines keeps decisions with someone your parent chose.
An Upcoming Surgery
Signing before a major procedure means someone you trust can speak for you if complications arise.
A New Diagnosis
A serious diagnosis is a reason to put your wishes and your decision-maker in writing now.
Why Hiring a Medical Power of Attorney Lawyer Matters
A medical power of attorney is used in a crisis, when there's no time to fix a mistake. Small signing errors can make it worthless.
What Goes Wrong Alone
A disqualified witness, a missing disclosure acknowledgment, no backup agent, or no HIPAA authorization for doctors to share information.
What Experience Adds
An attorney meets the Texas signing rules, names backups, and pairs the document with your directive and HIPAA release.
How Outcomes Differ
A sound document lets your agent speak with your doctors right away. A flawed one can leave your family arguing in a hospital hallway.
“
Francisca did my estate plan. It was so easy and I understood all the documents. She is great to work with and really knows her stuff.
Nicky · Estate planning client
Who Is Involved?
A medical power of attorney names who speaks for you when you can't. Each one below has a defined role.
You
Choose your agent, state your wishes, and sign before witnesses or a notary.
Your Attorney
Francisca drafts your documents and coordinates a valid signing.
Your Health Care Agent
Makes medical decisions for you based on your wishes and values.
Your Doctors
Your attending physician certifies when your agent may act.
Witnesses or a Notary
Confirm your signature under Texas rules.
What Your Medical Power of Attorney Includes
Your plan gives you a signed Texas medical power of attorney and the documents that work alongside it. You also get peace of mind: your family knows who decides and what you want.
What You Receive
- Medical Power of Attorney: Names your health care agent and backups under Texas law.
- Directive to Physicians: States your wishes about life-sustaining treatment.
- HIPAA Authorization: Lets your doctors share information with the people you choose.
- Appointment of Agent for Remains: Names who decides on burial or cremation arrangements.
What You Avoid
- Guardianship Court: A judge appointing someone to make medical decisions for you.
- Family Disagreement: Relatives arguing over your care at the worst possible time.
- Privacy Roadblocks: Doctors unable to share information with your family.
- Unknown Wishes: Loved ones guessing what you would have wanted.
Texas Rules That Shape Your Medical Power of Attorney
Texas has its own statutory form and rules for medical powers of attorney. These three matter most for Houston families.
2 Witnesses or 1 Notary: Signing Your Medical POA
Under Chapter 166 of the Texas Health and Safety Code, you sign before two qualified witnesses or a notary. At least one witness can't be your agent, a relative, an heir, your doctor or the doctor's employee, or an employee of your health care facility. You also sign an acknowledgment of the required disclosure statement.
1 Doctor's Certification: When Your Agent Steps In
Your agent can make decisions only after your attending physician certifies in writing that you can't make them yourself. Until then, every decision stays with you. If you recover, your authority returns. That built-in safeguard is why most people sign a medical power of attorney now, long before they need it.
4 Decisions Your Agent Can't Make
Texas law limits your agent in four areas. Your agent can't consent to voluntary inpatient mental health services, convulsive treatment or psychosurgery, or abortion, and can't consent to withholding comfort care. Everything else about your treatment, care facilities, and doctors can be decided by the person you name.
What Happens After You Call The Law Offices of Francisca Manchac, PLLC
Your medical power of attorney moves through five steps, from a free video consultation to signed documents your agent and doctors can use, with a flat fee set before work begins.
01
Free Consultation and Intake
Book an Estate Planning consultation and complete the intake form at least 24 hours ahead. Francisca learns your wishes and who you trust.
02
Custom Plan Design
You confirm your plan and flat fee, sign an engagement agreement, and Francisca drafts your medical power of attorney and companion documents.
03
Plain-Language Review
Francisca walks you through each document by video, including the decisions your agent can and can't make.
04
Witnessed Signing
Francisca coordinates your signing with qualified witnesses or a notary, as Texas law requires.
05
Sharing Your Documents
You give copies to your agent and your doctors, and keep the originals safe.
Common Questions About Medical Powers of Attorney in Houston
Something else on your mind? Call or text (832) 263-0935.
How much does a medical power of attorney cost in Houston?
Francisca prepares medical powers of attorney for a flat fee, so you know the full cost before work begins and never pay by the hour for questions. Most Houston clients get it as part of a complete plan that also includes a directive to physicians, a HIPAA authorization, a durable financial power of attorney, and a will. The fee depends on which documents your family needs. Your first step is a free 30-minute virtual consultation, where Francisca recommends the right plan and quotes your flat fee.
Can I use a free Texas medical power of attorney form?
You can. Texas publishes a statutory form, and it's valid when signed correctly. The risk is in the details: choosing the right agent and backups, meeting the witness or notary rules, signing the required disclosure acknowledgment, and pairing it with a directive to physicians and a HIPAA authorization. A form signed with a disqualified witness or left without a backup agent can fail when your family needs it. A flat-fee plan drafted by an attorney avoids those gaps.
What's the difference between a medical power of attorney and a living will?
A medical power of attorney names a person to make health care decisions for you. A living will, called a Directive to Physicians in Texas, states your own wishes about life-sustaining treatment if you have a terminal or irreversible condition. They work best together: the directive tells doctors what you want, and your agent speaks for you in every situation the directive doesn't cover. Francisca includes both in every estate plan.
When does a medical power of attorney take effect?
Only when your attending physician certifies in writing that you can't make your own health care decisions. Until then, you make your own decisions, even if you've signed the document. If you recover, decision-making returns to you. That's different from a financial power of attorney, which often takes effect as soon as you sign it.
Who can I name as my health care agent?
You can name any competent adult you trust, such as a spouse, adult child, sibling, or close friend. Your agent generally can't be your health care provider or an employee of your provider, unless that person is also your relative. Choose someone who knows your values, can stay calm under pressure, and will follow your wishes even when family members disagree. Name at least one backup in case your first choice isn't available.
What happens in Texas if I don't have a medical power of attorney?
Texas law lets certain family members make medical decisions for you in a set order, starting with your spouse, then a majority of your adult children, then your parents. That works until people disagree, a relative you'd never choose has priority, or your unmarried partner has no say at all. A medical power of attorney replaces that default list with the person you actually trust.
Does my 18-year-old need a medical power of attorney?
Yes. Once your child turns 18, you lose automatic authority to make medical decisions for them or even receive their health information. If your college student is hurt or seriously ill, a medical power of attorney and a HIPAA authorization let you step in and talk with their doctors. Many Houston families sign these as part of estate planning for young adults before a child leaves for school.
Can I change or revoke my medical power of attorney?
Yes. In Texas, you can revoke a medical power of attorney at any time by telling your agent or your health care provider, orally or in writing, regardless of your mental state. Signing a new one also replaces the old one. A divorce automatically ends a former spouse's authority as your agent unless the document says otherwise. Give updated copies to your agent, your doctors, and your hospital.
Is a medical power of attorney from another state valid in Texas?
Generally, yes. Texas honors a medical power of attorney that was validly signed under the law of the state where it was signed. Hospitals tend to work more smoothly with the Texas form, though, and an out-of-state document may not include the Texas disclosure language or pair with a Texas directive to physicians. If you moved to Houston, signing new Texas documents is usually the simplest fix.
Do I also need an out-of-hospital DNR?
Only if you want paramedics and other emergency responders to honor a do-not-resuscitate decision outside a hospital. A Texas out-of-hospital DNR order must be signed by your attending physician, so it can't be completed at a signing appointment with your attorney. It's separate from your medical power of attorney and directive to physicians. Francisca can explain how it fits with your plan, and your doctor completes it with you.
Areas We Serve
The Law Offices of Francisca Manchac, PLLC serves Houston families from 3333 Allen Pkwy Unit 300, Houston, TX 77019, with consultations and reviews by video. Keep copies of your medical power of attorney with your doctors and the Houston hospital systems where you receive care. Visit the Houston office page to see every service available to Houston clients.
Harris County
Fort Bend County
Montgomery County

Other Estate Planning Services We Offer
Get Started With a Medical Power of Attorney Lawyer in Houston
The best time to choose your health care agent is while you're healthy and able to decide. Start with a free 30-minute virtual consultation with Francisca. Call (832) 263-0935 or book online.
