How to Modify or End a Guardianship in Washington State

A guardianship order in Washington is not necessarily permanent. Parents recover, children grow up, circumstances change. Whether you are a guardian who wants to step down, a parent who wants to regain custody, or a relative who needs to adjust the terms of an existing order, Washington law provides a path through Form GDN M 502 — the petition to modify or terminate a guardianship.

When a Guardianship Ends Automatically

A minor guardianship under RCW 11.130 ends on its own when:

• The child reaches majority, is emancipated, dies, or is adopted

No court filing is needed for these automatic terminations. The Letters of Guardianship expire by operation of law.

Filing to Modify or Terminate

For any other change — ending the guardianship early, transferring it to a different guardian, adjusting visitation, or modifying the scope of authority — someone must file a petition with the Superior Court.

Who can file: The guardian, either parent, the child (if 12 or older), or any person interested in the child's welfare.

Which form: GDN M 502 (Petition to Terminate or Change Minor Guardianship or Non-Parent Custody Order). This same form handles modifications to surviving orders under the old RCW 26.10 nonparental custody statute, which was repealed in 2021.

Where to file: In the same county Superior Court that entered the original guardianship order.

Common Reasons for Termination

Parent reinstatement is the most common reason. A parent who was incarcerated has been released and completed reentry programs. A parent who was in substance abuse treatment has maintained sobriety. A parent who was absent has returned and demonstrated ability to parent. If the basis for appointment no longer exists, the guardianship terminates unless the court finds that ending it would harm the child and the child's interest in continuing the guardianship outweighs the parent's interest in restoring decision-making rights.

Guardian unable to continue — a grandparent's health declines, a relative relocates out of state, or the caregiving arrangement is no longer working. The guardian petitions to resign and may nominate a successor.

Child's needs changed — the original order may have limited the guardian's authority (for example, restricting medical decision-making or educational choices), and circumstances now require broader or narrower powers.

Agreement between parties — the guardian and parents agree that the child should return to the parent's care. The court still reviews the arrangement to confirm it serves the child's best interest, but agreed modifications typically proceed smoothly.

What the Court Considers

For a termination and return to a parent, the court applies the statutory rule: if the basis for appointment no longer exists, the guardianship terminates unless ending it would harm the child and the child's interest in continuing the guardianship outweighs the parent's interest in restoring decision-making rights. Evidence about the child's best interest and changed circumstances can help the court evaluate that question, including:

• Evidence that the conditions justifying guardianship have genuinely changed
• The parent's current housing, employment, sobriety, and support network
• The child's established routine, schooling, and attachments
• Whether the child is old enough to express a preference (12 or older)
• Any CPS history since the original order was entered
• Input from the guardian, the Court Visitor (if appointed), and any professionals involved with the family

A parent's desire alone is not enough. The court must be satisfied that returning the child to the parent will not put the child at risk.

The Hearing Process

The modification hearing follows a similar structure to the original guardianship hearing. The petitioner presents evidence, the other parties respond, and the judge decides. If a parent filed the petition over the guardian's objection, the court may appoint a Court Visitor to investigate current conditions.

Notice requirements apply. Serve the petition and hearing notice on each parent, each child who is 12 or older, the guardian or non-parent custodian, and interested parties named in the existing order. Notice of the hearing must generally be given at least 14 days before the hearing, subject to applicable local rules or a court order.

Post-Termination Steps

Once the court signs an order terminating the guardianship:

• The guardian's Letters of Guardianship become void
• Notify the child's school, doctors, and any agencies (DSHS, insurance) that relied on the guardianship order
• Return any original court documents to the county clerk if required by local rules
• If the child was receiving child-only TANF or other benefits through the guardian, the parent must reapply under their own name

Your Next Step

Our Washington Guardianship Court Process Guide covers post-appointment duties including how to handle modification and termination, with checklists for the filing process and notice requirements.

See more Washington guides →