Interdiction in Louisiana: The Court Process That a Mandate Prevents

When a Louisiana adult loses the ability to manage their own affairs and has no valid mandate (power of attorney) in place, the family's only legal option is interdiction — a formal judicial proceeding where a district court judge declares the person incompetent and appoints a curator to manage their finances and personal care. Louisiana Civil Code Articles 389 through 399 govern the process, and it is widely considered the most expensive, invasive, and emotionally difficult legal pathway in the state's civil law system.

Elder law attorneys in Louisiana sometimes refer to interdiction as a "civil death" because of how thoroughly it strips the interdicted person's legal rights. Understanding what it involves explains why estate planners treat a durable mandate as the single most important document an adult can execute.

How the Interdiction Process Works

Filing the petition. A family member, spouse, or interested party files a petition for interdiction in the district court of the parish where the alleged incompetent person is domiciled. The petition must describe the person's condition and explain why they are unable to manage their property or care for themselves.

Service and notice. The sheriff serves the petition on the person to be interdicted. Other family members must also be notified. The proceeding becomes part of the public record — anyone can access the file.

Medical evaluations. The court orders one or more independent medical or psychological evaluations. The examining physicians must submit written reports confirming the nature and extent of the person's incapacity. In contested cases, each side may retain their own experts, turning the evaluation process into a battle of medical opinions.

Evidentiary hearing. A formal hearing takes place in open court. The petitioner presents evidence of incapacity. The person being interdicted has the right to appear, testify, and oppose the petition — through their own attorney if they choose. Family disputes over who should serve as curator frequently surface at this stage, adding cost and delay.

Judgment of interdiction. If the court finds that the person is unable to consistently make reasoned decisions about their care or property, the judge issues a judgment of interdiction. The court may order a full interdiction (all rights removed) or a limited interdiction (specific rights restricted while others are preserved).

Appointment of curator and undercurator. The court appoints a curator to manage the interdict's affairs and an undercurator to supervise the curator. The curator must post a surety bond — a financial guarantee protecting the interdict's estate from mismanagement.

Ongoing Court Supervision

Interdiction is not a one-time event. The curator must:

• File detailed annual accountings with the court, itemizing every financial transaction made on the interdict's behalf
• Obtain court approval before selling real estate, making major investments, or taking other significant actions with the interdict's assets
• Maintain the surety bond for the duration of the curatorship
• Submit to periodic reviews where the court evaluates whether the interdiction should continue, be modified, or be terminated

This ongoing supervision is designed to protect the interdict, but it creates a continuous financial and administrative burden on the family.

What Interdiction Costs

Professional fees for an uncontested interdiction typically run between $3,500 and $5,000. Contested cases — where family members disagree about the person's capacity or who should serve as curator — routinely exceed $10,000 and can stretch past $20,000 when expert witnesses and extended hearings are involved.

Beyond attorney fees, the family pays for:

• Court filing fees
• Sheriff service costs
• Medical evaluation fees
• Surety bond premiums (annual)
• Annual accounting preparation (often requires an attorney or CPA)

These costs come directly from the interdict's estate, reducing the assets available for their care.

How a Mandate Prevents Interdiction

A properly executed durable mandate under Louisiana Civil Code Article 3024 allows the principal to designate a mandatary to manage financial, property, and healthcare decisions — privately, immediately, and without court involvement. Because Louisiana mandates are durable by default, the mandatary's authority continues through the principal's incapacity without any triggering process.

The mandate operates as a private contract. No court petition, no public hearings, no medical evaluations ordered by a judge, no surety bond, no annual accountings. The mandatary simply presents the executed mandate to banks, hospitals, and title companies and acts on the principal's behalf.

The window for executing a mandate closes the moment the principal loses the cognitive capacity to understand what they are signing. After that point, interdiction is the only path. The Louisiana Power of Attorney Kit provides the complete durable mandate package — financial, healthcare, and living will — so families can establish authority before the window closes.

See more Louisiana guides →