When someone creates a power of attorney (POA), they are placing immense trust in another person to make critical decisions on their behalf. Whether the POA covers financial or legal authority, this document can become one of the most powerful legal tools in a person’s life. But what happens if the person named as agent isn’t acting in the principal’s best interest? Or what if family members or professionals begin to worry that the principal no longer has the capacity to maintain the agreement? Can anyone override or revoke a POA? The answer depends on the circumstances, the type of POA, and the applicable state laws. Continue reading to find the answers to these questions and to learn more about powers of attorney.
The principal may hold the power until capacity is lost
A power of attorney gives the option to have it go into effect immediately or upon incapacity. At its core, a power of attorney gives another person (the “agent”) the legal authority to act on behalf of the “principal.” The principal may choose to have a power of attorney only go into effect once they are unable to make decisions for themselves, which is common, but they can also allow a power of attorney to go into effect immediately to allow for decisions to be made on their behalf while they’re still coherent. Power of attorney powers can always be revoked by the principal. Revocation must typically be done in writing and delivered to all relevant parties, including the agent and any institutions relying on the POA.
Can family members override a POA?
This is one of the most common questions that comes up, especially when a parent is aging or when there’s tension between siblings. The short answer is no, family members cannot unilaterally override a valid POA just because they disagree with the agent’s decisions. However, if family members have evidence of abuse, neglect, exploitation, or mismanagement, they can petition a court to intervene. Courts have the authority to remove an agent or invalidate a POA if there’s proof of wrongdoing or if the agent is acting outside the scope of the POA.
When the court gets involved
In cases where the principal is incapacitated and cannot revoke the POA themselves, interested parties, often family members, close friends, or even a government agency, can petition the probate or guardianship court to step in. The court may hold a hearing to determine whether the agent is acting appropriately. If the court finds that the agent is breaching their fiduciary duties, such as by misusing funds or making decisions not in the principal’s best interest, it can revoke the POA and appoint a guardian or conservator instead. Some courts may even suspend the POA temporarily while an investigation is underway.
Role of adult protective services and other authorities
Adult Protective Services (APS) and similar state agencies play a crucial role when concerns arise about abuse, exploitation, or neglect of an individual who has granted power of attorney. If someone believes an agent is misusing their authority, such as financially exploiting the principal or making harmful decisions, APS can investigate and, if necessary, refer the matter for legal action. In some cases, law enforcement or the courts may step in to suspend or revoke the agent’s authority, especially when there’s evidence of fraud, coercion, or breach of fiduciary duty.
The agent themselves can decline or resign
Interestingly, the agent named in the POA also retains the right to decline their role or resign at any time. If they do so, the POA becomes inactive unless a successor agent is named. This is why many attorneys recommend naming alternate agents in the document. If no successor is available, court intervention may be required to appoint someone new. Sometimes the responsibilities of an agent can be emotionally daunting, and someone who isn’t prepared emotionally or mentally to make the decisions on behalf of the principal might choose to forgo the appointment.
When institutions refuse to honor a POA
Sometimes, banks or healthcare providers hesitate to honor an agent’s authority under a POA. This is especially true if the document appears outdated, is missing formalities, or doesn’t meet the institution’s internal policies. In such cases, institutions may request updated paperwork, a notarized copy, or even legal advice before allowing the agent to act. While many states have laws prohibiting unreasonable refusals to honor a POA, the pushback can delay important decisions. This is one reason why proper drafting and state-specific compliance are critical.
What about medical powers of attorney?
Medical or healthcare POAs, sometimes called health care proxies, have a slightly different legal framework. These typically only take effect when the principal is declared incapacitated by a physician. If someone wants to challenge a medical POA, for instance, if they believe the agent is making harmful decisions, they may have to go through the hospital’s ethics board or the probate court. In rare cases, emergency interventions can occur if immediate harm is threatened, and a court order can override the medical POA if necessary.
How to protect against abuse and confusion
One of the best ways to prevent conflict over a power of attorney is through thoughtful planning and clear communication. When creating a POA, individuals should choose agents they deeply trust and make their wishes explicit in the document. Discussing those choices with family in advance can prevent misunderstandings later. It’s also wise to include limitations or reporting requirements in the POA itself. An example of this would be requiring that the agent share regular financial reports with a third party or only act with co-agent approval. Some states allow these provisions to be built in, which can help avoid the need for legal challenges down the road.
Final thoughts on overriding a power of attorney
Powers of attorney are incredibly useful, but they also come with great responsibility and legal weight. While it’s not easy to override a valid POA, it is possible under certain conditions. The key is understanding when and how the law permits intervention, whether by the principal, a concerned family member, a court, or an oversight agency. If you’re creating or reviewing a POA, working with an attorney ensures that it’s drafted with both authority and accountability in mind. If you’re questioning someone else’s role as an agent, knowing your rights and options can help protect the best interests of the person at the center of it all.
Nicole Sheehey is the Head of Legal Content at HelloPrenup, and an Illinois licensed attorney. She has a wealth of knowledge and experience when it comes to prenuptial agreements. Nicole has Juris Doctor from John Marshall Law School. She has a deep understanding of the legal and financial implications of prenuptial agreements, and enjoys writing and collaborating with other attorneys on the nuances of the law. Nicole is passionate about helping couples locate the information they need when it comes to prenuptial agreements. You can reach Nicole here: Nicole@Helloprenup.com
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