$0 Oregon — Turning 18 Legal Checklist

Oregon Guardianship for Autism, Down Syndrome, and Intellectual Disabilities

The Diagnosis Doesn't Determine the Answer

Oregon's guardianship statute under ORS Chapter 125 is capacity-based, not diagnosis-based. A court cannot grant guardianship simply because someone has autism, Down syndrome, cerebral palsy, or an intellectual disability. The petitioner must prove — by clear and convincing evidence — that the specific individual cannot manage specific areas of their life and that less restrictive alternatives have been considered and found inadequate.

This matters because capacity varies enormously within every diagnostic category. An autistic adult who struggles with executive function but can articulate medical preferences might need a financial power of attorney and nothing else. An adult with Down syndrome who manages daily routines independently but can't evaluate medical risks might benefit from a healthcare advance directive rather than court involvement. An adult with severe cerebral palsy who communicates through assistive technology might have full decision-making capacity despite needing physical support.

Alternatives Before Court

Oregon law requires the guardianship petition to address why less restrictive options won't work. Before filing, families should evaluate and document their experience with:

Supported Decision-Making (SDM) — Oregon recognizes SDM in the educational context under HB 2105, and families can use informal SDM agreements for daily life. A written SDM agreement names trusted supporters who help the young adult gather information, weigh options, and communicate decisions. The young adult retains all legal rights.

Healthcare Advance Directive — Under ORS 127.527, the young adult appoints a healthcare representative who can make medical decisions during periods of incapacity. Valid if the young adult can understand the document's purpose and sign it.

Financial Power of Attorney — Oregon's durable POA under ORS 127.005 lets the young adult authorize a parent or trusted person to manage finances. No court involvement, no notary required for basic validity (though notarization is recommended for bank acceptance).

Representative Payee — For SSI recipients, the Social Security Administration can designate a representative payee to manage benefit funds without any state court proceeding.

When Guardianship Becomes Necessary

If the young adult cannot understand what a power of attorney or advance directive means — even with accommodations, simplified language, and support — then these voluntary documents aren't a valid option, because they require the principal's informed consent to execute.

In that situation, a guardianship petition may be appropriate. Oregon strongly favors limited guardianship: the court grants authority over only the specific personal domains where the person lacks capacity (medical decisions or residential placement) and preserves rights in all other areas. Financial authority requires a separate conservatorship. The right to vote, to contact an attorney, and to access personal records stays with the protected person unless the court explicitly restricts those rights.

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The Court Process by Diagnosis

The petition and hearing process is identical regardless of diagnosis, but the evidence families present varies:

Autism spectrum — Capacity assessments for autistic adults can be complicated by communication differences, executive function challenges, and the gap between understanding a concept and implementing a decision independently. The court visitor will evaluate whether accommodations (visual supports, additional processing time, communication devices) could enable independent decision-making before recommending guardianship. Families should document what supports have been tried and where they fell short.

Down syndrome — Many adults with Down syndrome handle daily routines and social decisions well but may struggle with financial concepts, medication management, or evaluating medical risks. Limited guardianship over healthcare or residential matters — while preserving residential choice and social autonomy — is a common outcome. Financial authority requires a separate conservatorship.

Intellectual disability (ID) — The court looks at adaptive functioning, not IQ alone. ODDS eligibility screening uses a structured intake that analyzes IQ (typically 75 or below), adaptive behavior scores, and developmental history; this is separate from the guardianship standard, which is practical: can this person provide for their own food, clothing, shelter, and medical care? Document specific real-world scenarios where the person's safety was at risk without intervention.

Cerebral palsy — Physical disability alone never justifies guardianship. If cognitive function is intact, the young adult can execute all voluntary legal documents themselves, using whatever physical accommodations they need to complete the signing. Guardianship only enters the picture when cerebral palsy co-occurs with cognitive impairment that affects decision-making capacity.

Filing Costs

The statewide circuit court filing fee is $124 for a guardianship petition. The court appoints a court visitor — an independent investigator who interviews the young adult, the petitioner, and medical providers — at an additional county-specific fee (Lane County $300, Coos County $300–$350, Columbia County $400). Attorney fees for an uncontested proceeding typically run $2,500–$5,000.

Families receiving public assistance or OHP can apply for a fee waiver or deferral under ORS 21.682.

Building the Right Framework

The decision between alternatives and guardianship isn't permanent. Oregon law allows a protected person to petition the court at any time to modify or terminate a guardianship if their capacity changes. And the less restrictive alternatives — SDM agreements, advance directives, powers of attorney — can be layered on top of a limited guardianship, gradually shifting authority back to the individual as they demonstrate capability.

The Oregon Adult Guardianship & Alternatives Guide includes a decision-making comparison worksheet, court petition cost estimator, and step-by-step instructions for each alternative — organized by the actual capabilities your young adult has, not the diagnosis they carry.

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