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In Washington, a stepparent adoption is filed in the Superior Court by the spouse of the child's parent, and it typically takes 3-6 months. A third-party adoption, where the adopting person is not the spouse of the child's parent, follows a different process, and its rules, steps and costs are best confirmed with an attorney or the Superior Court clerk in your county.
What stepparent adoption looks like in Washington:
- Court: Your petition goes to the Superior Court. Washington has 39 counties, and your county clerk can explain local filing details.
- Residency: Washington has no minimum residency period (RCW 26.33.030).
- Child's consent: A child who is 14 or older must consent (RCW § 26.33.160).
- The other parent: Where the other parent will not consent, the court looks at abandonment under RCW § 26.33.120. Washington sets no fixed number of months. Abandonment depends on the parent's overall conduct. Sporadic child support does not prevent an abandonment finding if the parent has not kept up meaningful contact, because courts look at the overall relationship rather than money alone. Every contested situation depends on its facts, so talk with an attorney or the court clerk about yours.
- Background checks: Washington requires criminal background checks for adoptive parents.
- Home study: Home study rules are in RCW 26.33.220. Washington allows courts to waive the home study in stepparent adoptions in some situations, such as when the child has been living with you, but a waiver is not automatic. Ask the clerk whether it would apply to your family.
- Marriage length: Washington does not specify a minimum length of marriage.
Cost: Court filing fees for a stepparent adoption in Washington typically fall in the range of $200-$500, and the total typical cost is under $1,000. Hiring an attorney commonly runs $3,000-$5,000+.
Where third-party adoption differs: Our Washington information focuses on stepparent adoption. For a third-party adoption, including how placement works, which reports and home studies are required, whose consent is needed, and what it costs, an adoption attorney or the Superior Court clerk can give you accurate answers for your situation. The point to keep in mind is that a stepparent adoption formalizes a family relationship that already exists, and Washington courts are supportive of these adoptions because they give children stability and legal protection. Judges routinely approve adoptions that are in the child's best interest.
Why families choose stepparent adoption: Benefits can include Social Security survivor benefits, legal decision-making security and the emotional security of a unified family.
How we help: StepParent Adoption 360 is a document preparation service, not a law firm. You answer questions online, and we prepare the complete court document package for your county. You then file it yourself without an attorney.
Stepparent adoption in Washington at a glance
- Court
- Superior Court
- Residency before filing
- No minimum period
- Typical timeline
- 3-6 months
- Court filing fee
- $200-$500
- Child must consent at age
- 14
- Home study
- May be required
- Washington families we've helped
- 1,104
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Page layout updated . Individual answers have different research histories. This is general information; court requirements and individual circumstances can differ. Document preparation service, not a law firm.
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