Utah Limited Guardianship for Adults with Disabilities

Most families who research guardianship in Utah assume they need full (plenary) authority over their adult child's decisions. Utah law pushes hard in the other direction. Under Utah Code § 75-5-304, the court is legally required to prefer a limited guardianship over a full one. A plenary order can only be issued if the petitioner demonstrates that no less restrictive arrangement is adequate to prevent substantial harm.

This isn't just a preference — it shapes how judges evaluate petitions, what evidence they expect, and what orders they issue. Understanding the distinction before you file saves time, avoids an incomplete petition, and may result in a legal arrangement that better serves your young adult.

What Limited Guardianship Covers

A limited guardianship authorizes the guardian to make decisions only in the specific areas where the court finds the individual lacks capacity. The court order must spell out exactly which rights are being transferred and which rights the protected person retains.

For example, a limited order might grant a parent authority over:

• Medical treatment decisions (signing consent forms, choosing providers)
• Residential placement (where the adult child lives)

While the protected person keeps full authority over:

• Social relationships and associations
• Employment decisions
• Religious practice
• Financial matters (handled separately through a power of attorney or conservatorship if needed)

Under House Bill 334 (effective May 2025), the court must now explicitly document the rights retained by the protected person. This codified what was already practical — but it means the order itself functions as a clear reference when you need to show a hospital, school, or agency exactly what authority you do and don't have.

How Full Guardianship Differs

A plenary (full) guardianship transfers all personal, medical, residential, and legal decision-making authority to the guardian. The protected person loses the right to make any legally binding decisions independently.

Utah reserves this level of intervention for individuals with complete functional incapacity — typically those under the Severe Intellectual Disability (SID) pathway (Utah Code § 75-5-601 et seq.), where the impairment has existed since childhood and is expected to be permanent.

Even under the SID pathway, the protected person retains certain rights that a guardian cannot override without a specific court order. Under Utah Code § 75-5-312.5, the guardian cannot restrict phone calls, mail, or visits from family and friends unless the court has specifically authorized that restriction. If the court finds that the guardian acted in bad faith, it may impose personal sanctions of up to $1,000 against the guardian.

The Evidence Question

The type of guardianship you're seeking affects the evidence you need to present:

For limited guardianship (standard Adult Child Pathway under § 75-5-317), you must show that the individual has a functional limitation preventing them from receiving and evaluating information or making and communicating decisions to meet essential requirements for health, safety, or self-care — but only in the specific domains you're requesting authority over. The clinical evaluation should address capabilities domain by domain, not give a blanket "incapacitated" determination.

For full guardianship (SID Pathway under § 75-5-601 et seq.), you need evidence of severe, lifelong intellectual disability that has existed since the individual was a minor and is expected to be permanent. These hearings are typically closed to the public and can be conducted remotely. A significant procedural difference: the court can waive the mandatory counsel requirement for the respondent if the respondent is the child, grandchild, or sibling of the petitioner, the respondent's estate doesn't exceed $2,000, the respondent appears and has an opportunity to communicate acceptance of the guardian, and the court finds counsel unnecessary to protect the respondent's interests.

Under Senate Bill 161 (2026), any court-appointed evaluator must use evidence-based screening tools and is specifically prohibited from basing the assessment predominantly on what the petitioning parent reports. School psychoeducational evaluations and adaptive behavior assessments from the IEP file can supplement the clinical report.

Practical Implications

Limited guardianship is more work upfront — you need to articulate exactly which domains require court-ordered authority and provide domain-specific evidence. But it produces a better outcome for most families:

• Your young adult retains dignity and agency in areas where they can function
• The order is easier to modify later (adding or removing domains as capabilities change)
• Schools, employers, and community programs can see exactly what authority you have, reducing friction
• Courts view limited petitions more favorably because they align with statutory requirements

Full guardianship makes sense for individuals whose needs genuinely cross every life domain. For everyone else, limited guardianship paired with voluntary tools (SDMAs, powers of attorney, advance health care directives) provides more precise coverage.

For domain-specific capacity evaluation worksheets and the court filing timeline, the Utah Adult Guardianship & Alternatives Guide walks through both pathways step by step.

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