Louisiana Interdiction Process: Cost, Steps, and When You Actually Need It

What Interdiction Actually Is in Louisiana

Louisiana doesn't use the word "guardianship." The state's civil law system — rooted in the Napoleonic Code rather than English common law — uses a different framework entirely. When an adult is unable to consistently make reasoned decisions about their person or property, the court can place them under "interdiction," appointing a curator (the Louisiana equivalent of a guardian) to make decisions on their behalf.

Interdiction is governed by Louisiana Code of Civil Procedure Articles 4541–4560. It comes in two forms:

• Full interdiction: The individual is found unable to manage both personal and financial affairs. The curator has broad authority over medical decisions, living arrangements, contracts, and finances
• Limited interdiction: The individual retains autonomy in some areas (personal decisions, for example) but needs a curator for others (typically financial management)

Both forms require a formal court proceeding. Full interdiction can strip the adult of significant civil rights — including the right to contract, choose where to live, or marry without the curator's involvement. A limited interdiction affects only the capacities and powers identified in the judgment.

Why Interdiction Is Usually the Last Resort

Interdiction exists because sometimes there is no lighter alternative. But it is expensive, adversarial, and rights-restrictive by design.

The process requires:

1. Filing a petition in the district court of the parish where the individual resides
2. Paying a filing fee and a deposit to cover court costs
3. Sheriff service of process: The individual being interdicted must be formally served with a citation — by a sheriff's deputy, at their home or facility
4. Court-appointed attorney: The judge must appoint an independent attorney to represent the individual (the "defendant"), even if the family and the individual are not in disagreement. This attorney's fees are typically charged to the petitioner
5. Clinical expert testimony: A qualified professional must testify about the individual's capacity at a formal hearing
6. Judicial determination: The judge makes the finding, appoints a curator and an under-curator, and issues the interdiction judgment

Total cost typically runs $3,500 to $8,000 or more in combined legal fees, court costs, expert witness fees, and sheriff service charges. The process can take months, depending on court scheduling.

The Continuing Tutorship Alternative

Most Louisiana families shouldn't need interdiction if they plan ahead. Continuing Tutorship under La. R.S. 9:1701 is a streamlined, far less expensive procedure that extends parental legal authority from childhood into adulthood.

The critical difference: continuing tutorship must be filed and signed by a judge before the child turns 18. The eligibility window opens as early as age 15.

Requirements for continuing tutorship:

• The child must have an intellectual or developmental disability documented by standardized testing showing less than two-thirds of average mental ability (generally an IQ of 67 or below)
• A psychological evaluation must be submitted to the parish coroner
• The coroner signs a formal affidavit of concurrence
• An attorney files the petition, coroner's concurrence, and medical documentation with the district court
• If everything is in order, the judge signs the Letters of Continuing Tutorship — typically without a formal hearing and without appointing an attorney for the child

Cost: $2,000 to $4,000 in legal fees plus $300–$600 in court filing fees. No sheriff service, no adversarial hearing, no appointed attorney for the child.

The catch is absolute: once the child turns 18 without continuing tutorship in place, the window closes permanently. At that point, interdiction is the only judicial mechanism for establishing decision-making authority over a non-competent adult.

Supported Decision-Making: The Rights-Preserving Option

For adults who can make decisions with assistance — even if they need significant help gathering information and understanding options — Louisiana's Dustin Gary Act (La. R.S. 13:4261.101–13:4261.302) provides Supported Decision-Making Agreements (SDMAs) as a legally recognized alternative.

Under an SDMA:

• The individual (the "Decision-Maker") retains all civil and legal rights
• They designate trusted supporters who help them understand and communicate decisions about healthcare, finances, housing, and employment
• The agreement must be written and notarized by a Louisiana Notary Public
• No court proceeding is required
• Cost: $0 if self-executed, up to $500 with legal counsel for drafting

Courts are now required to consider whether an SDMA would adequately protect the individual before granting an interdiction order. And under Louisiana HB 362 (effective 2024), school districts must provide information about SDMAs during the transition planning process for students aged 14–17 participating in alternate assessments.

When Interdiction Is the Right Call

Even with continuing tutorship and SDM available, interdiction is sometimes necessary:

• The child turned 18 without continuing tutorship: If the deadline was missed — whether because the family didn't know about it, the child's cognitive testing didn't meet the IQ threshold at the time, or the paperwork simply wasn't filed — interdiction may be the only remaining option for establishing legal authority
• The disability is acquired after age 18: Continuing tutorship only applies to disabilities that manifested during childhood. A traumatic brain injury at age 25, for example, requires interdiction
• The individual's cognitive capacity is borderline: Testing may not meet the continuing-tutorship threshold, but the family may still demonstrate that the individual cannot consistently make reasoned decisions — meeting the interdiction standard
• The individual actively resists decisions that protect them: SDM works when the person is willing to accept support. If they are making decisions that endanger their safety and refuse assistance, interdiction may be the protective mechanism of last resort

What a Curator Does (and Doesn't Do)

Appointment as curator gives the person authority to make decisions for the interdicted individual in the areas specified by the court judgment. But curator status does not automatically grant:

• Authority over federal benefits: The Social Security Administration does not recognize state court orders for managing SSI or SSDI funds. The curator must separately apply to be the SSA representative payee (Form SSA-11-BK)
• Trustee authority: If the individual has a special needs trust, the trust document names its own trustee — which may or may not be the curator
• Blanket medical authority everywhere: Some healthcare providers and institutions may still require specific documentation beyond the interdiction judgment

The curator must also account for the individual's estate and file periodic reports with the court, depending on the terms of the interdiction judgment.

For families navigating the full scope of legal authority, benefit protection, and financial planning during the Louisiana age-18 transition, the Louisiana SSI at 18 & Adult Disability Benefits Guide maps each decision-making framework alongside the federal and state benefit timelines — so nothing falls through the cracks.

See more Louisiana guides →