Delaware Guardianship Turning 18 Disability: Your Complete Transition Guide

What Actually Changes on Your Child's 18th Birthday in Delaware

Everything. Under Delaware law, every individual is presumed to have full legal capacity on their 18th birthday, regardless of disability. Your automatic parental authority ends overnight, and three things happen simultaneously:

Medical decisions transfer. Hospitals and clinics — Nemours, ChristianaCare, your child's pediatrician — will stop sharing medical information with you. No phone updates, no appointment coordination, no treatment decisions, unless a signed legal document authorizes your involvement.

Educational rights transfer. Under 14 Del. C. § 3132, all IEP and special education rights shift from you to your adult child. Meeting notices go to them. They sign evaluations and consent forms. You attend their IEP meeting only if they invite you — or if they have signed a Voluntary Grant of Authority delegating those rights back to you.

Financial independence begins. Banks freeze your access to accounts in your child's name. SSI eligibility is re-evaluated based on their individual income and assets, not your family's. If they cannot manage their own funds, no one can legally do it for them without authorization.

The Legal Options Available in Delaware

Delaware offers a spectrum of legal tools, from least to most restrictive:

Supported Decision-Making Agreement (16 Del. C. Ch. 94A): Your child names one or more supporters who can attend meetings, gather records, and explain options — but the young adult makes every final decision. No court involvement. No rights removed. Requires two adult witnesses to execute.

Durable Power of Attorney (12 Del. C. Ch. 49A): Your child appoints an agent to handle financial and property matters. Requires a notary and one disinterested witness. The agent can act concurrently with the young adult or only upon incapacity, depending on how the document is written.

Advance Health-Care Directive (16 Del. C. Ch. 25): Names a healthcare agent for medical decisions when the young adult lacks capacity. Requires one adult witness when naming an agent, with exclusions for the agent, the agent's spouse, domestic partner, or cohabitant, and certain nursing or long-term care facility personnel.

Limited guardianship: The Court of Chancery assigns specific decision-making powers to a guardian while the young adult retains all unassigned rights. Requires a petition, physician's affidavit, attorney ad litem investigation, and court review; contested matters require a hearing.

Plenary guardianship: Full transfer of legal authority. The young adult is adjudicated incapacitated and loses the right to make independent decisions. This is the most restrictive option and Delaware law mandates it as a last resort.

The 8-Month Planning Timeline

8 months before the birthday: Begin assessing your child's functional capacity across domains — healthcare decisions, financial management, daily living, educational participation. Download Delaware's Supported Decision-Making Agreement model form from DHSS and discuss it with your child.

6 months before: Draft and execute the SDM Agreement, Durable Power of Attorney, and Advance Health-Care Directive. If you determine that guardianship may be necessary, schedule the physician's examination (the affidavit must be within 3 months of filing).

5 months before: Present signed documents to healthcare providers, schools, and banks. Give their records departments time to process the documents before the legal transition hits.

3 months before: If pursuing guardianship, obtain the physician's affidavit and prepare the petition.

2 months before: File the guardianship petition with the Register in Chancery if proceeding with court action.

At age 18: The IEP transition meeting occurs. Your child signs the Voluntary Grant of Authority if they have capacity and want you involved in educational decisions. If the IEP team determines they lack capacity, an Educational Representative is appointed following S.B. 180's priority hierarchy.

The Financial Cliff

Apply for adult SSI at the Social Security Administration on or shortly after the 18th birthday. Childhood SSI benefits are evaluated against the family's resources; adult SSI looks only at the individual's income and assets. Many young adults who did not qualify for childhood SSI will qualify as adults.

If your child cannot manage SSI funds independently, file an application with SSA to serve as their Representative Payee. This is an administrative designation — no court involvement needed — that lets you receive and manage the benefits on their behalf.

Open an ABLE account before significant SSI deposits begin accumulating. The first $100,000 in an ABLE account is excluded from SSI's $2,000 resource limit.

Why Most Families Do Not Need Full Guardianship

The combination of an SDM Agreement, a DPOA, and an Advance Health-Care Directive covers healthcare, finances, and daily decision support without removing any of your child's civil rights. Court of Chancery guardianship costs $135 in filing fees, up to $750 for the mandatory attorney ad litem, and ongoing annual reporting obligations. The non-court alternatives cost notary fees and your time.

More importantly, guardianship changes your child's legal status permanently (until terminated by the court). The non-court tools can be revoked by your child at any time, and they keep their right to vote, choose where to live, and make everyday decisions.

The Delaware Adult Guardianship & Alternatives Guide includes the diagnostic worksheets and step-by-step instructions you need to evaluate your child's specific situation and choose the right combination of legal tools.

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