What are the requirements for a valid power of attorney in Mississippi?

Under the Mississippi Uniform Power of Attorney Act, a valid POA must be signed by the principal, witnessed, and notarized. The document must clearly identify the agent and specify the scope of authority granted. Certain powers, known as hot powers, require specific language granting them individually.

What fiduciary duties does a power of attorney agent owe in Mississippi?

A POA agent in Mississippi owes the principal a duty of loyalty, a duty to act in the principal's best interest, a duty to keep accurate records, and a duty to avoid self-dealing. Agents who breach these duties face personal liability for damages and may be removed by the court.

Power of Attorney Essentials in Mississippi: The Uniform Power of Attorney Act | Lynch Law

A durable power of attorney is one of the most important documents in any estate plan, yet it is also one of the most frequently misunderstood. In Mississippi, the Uniform Durable Power of Attorney Act governs the creation, scope, and enforcement of powers of attorney for financial matters.^[1] Understanding how this statute works — and what it requires — is essential for anyone who serves as an agent, anyone who has designated an agent, and anyone who advises clients on estate planning.

Creating a Valid Power of Attorney in Mississippi

A power of attorney is a written instrument by which a principal designates another person (the agent, sometimes called an attorney-in-fact) to act on the principal's behalf. Under Mississippi law, a power of attorney must be signed by the principal and acknowledged before a notary public to be effective. While Mississippi does not strictly require witnesses for a power of attorney (unlike a will, which requires two witnesses), having witnesses sign can facilitate acceptance by third parties and financial institutions.

For a power of attorney to survive the principal's subsequent incapacity — which is the entire point for most estate planning purposes — the document must include specific language stating that the power is "durable." The statutory language provides that a power of attorney is durable if it contains the words "This power of attorney shall not be affected by subsequent disability or incapacity of the principal" or similar language showing the principal's intent.^[2]

Scope of Agent Authority

The scope of an agent's authority under a power of attorney depends entirely on the language of the document. Mississippi law permits broad grants of authority but also recognizes that certain especially significant powers — sometimes referred to as "hot powers" — should not be conferred unless the principal specifically and expressly grants them.

General Powers

A broadly drafted power of attorney may authorize the agent to handle real property transactions, tangible personal property, stocks and bonds, banking transactions, business operating transactions, insurance and annuity transactions, estate and trust transactions, claims and litigation, and personal and family maintenance. These general categories cover the day-to-day financial management that an agent may need to perform if the principal becomes incapacitated.

Hot Powers Requiring Express Authorization

Certain powers are considered so significant that they require an express grant in the instrument. These include the power to create, amend, revoke, or terminate an inter vivos trust; the power to make gifts of the principal's property; the power to create or change rights of survivorship; the power to create or change a beneficiary designation; the power to delegate authority granted under the power of attorney; and the power to waive the principal's right to be a beneficiary of a joint and survivor annuity.^[3] If these powers are not expressly enumerated in the document, the agent does not have authority to exercise them — regardless of how broadly the general grant of authority is worded.

The Agent's Fiduciary Duties

An agent who accepts appointment under a power of attorney assumes fiduciary duties to the principal. These duties are substantial and include the duty of loyalty (acting in the principal's best interest, not the agent's own interest), the duty of care (acting with the care, competence, and diligence ordinarily exercised by agents in similar circumstances), and the duty to keep accurate records of all financial transactions conducted on the principal's behalf.

The duty of loyalty is the most frequently litigated issue in power of attorney disputes. An agent who uses the principal's funds for the agent's own benefit, who makes gifts to themselves or their family members without express authorization, or who engages in self-dealing transactions has breached this duty. Mississippi courts have not hesitated to impose liability on agents who abuse their authority.^[4]

Third-Party Acceptance and Liability

One of the most practical challenges with powers of attorney is obtaining third-party acceptance. Banks, brokerage firms, and other financial institutions are sometimes reluctant to honor a power of attorney, particularly if the document is several years old or if the institution has its own proprietary form. Mississippi law addresses this problem by providing that a third party who refuses to accept a properly executed power of attorney may be subject to a court order mandating acceptance and may be liable for attorney's fees and costs incurred in obtaining that order.

At the same time, a third party who accepts a power of attorney in good faith is protected from liability, even if the power of attorney is later determined to have been invalid or the agent acted outside the scope of authority. This good-faith protection encourages institutions to honor valid powers of attorney without excessive delay.

Revocation and Termination

A principal with capacity may revoke a power of attorney at any time by delivering written notice to the agent. A power of attorney is also terminated by the principal's death, by the occurrence of a termination event specified in the document, or by court order. Importantly, actions taken by an agent in good faith before receiving notice of revocation or termination remain valid and enforceable against the principal or the principal's estate.

Practical Considerations

For Mississippi residents reviewing or updating their estate plans, the power of attorney deserves the same careful attention as the will or trust. The document should be tailored to the principal's specific circumstances, should expressly grant any hot powers the principal intends to confer, and should name successor agents in case the primary agent is unable or unwilling to serve. Periodic review is advisable to ensure the document remains current and that the named agents are still appropriate choices. Finally, providing copies to financial institutions in advance — rather than waiting until the document is needed — can significantly reduce the friction of third-party acceptance when the time comes.

References

^[1] Miss. Code Ann. §§ 87-3-101 through 87-3-113 (Uniform Durable Power of Attorney Act).
^[2] Miss. Code Ann. § 87-3-105 (defining durable power of attorney and the language required to create durability).
^[3] See Uniform Power of Attorney Act § 201 (listing powers requiring express grant); cf. Miss. Code Ann. § 87-3-107.
^[4] See, e.g., Titus v. Stelzer, No. 2022-CA-01079-COA (Miss. Ct. App. 2024) (affirming chancellor's finding that agent breached fiduciary duty by secretly conveying principal's property to agent's children using power of attorney).