How do I adopt my stepson or stepdaughter in Washington?

You adopt your stepchild in Washington by filing a stepparent adoption petition with the Superior Court in your county, getting any required consents (or showing why one isn't needed), and attending a court hearing where the judge decides whether to approve it. The process is governed by Revised Code of Washington Chapter 26.33, and it typically takes 3-6 months.

Where you file: Adoptions are handled by the Superior Court in each of Washington's 39 counties, whether you live in Seattle, Spokane, Tacoma, Vancouver, Bellevue or a smaller town. The clerk in your county can confirm local forms and filing procedures.

Residency and marriage: Washington has no minimum residency period (RCW 26.33.030). It also doesn't specify a minimum length of marriage before a stepparent can adopt.

Consent: A child who is 14 or older must consent to the adoption (RCW § 26.33.160). For a younger child, the court looks at what is in the child's best interest. The other legal parent's role depends on your family's facts, so confirm it with the clerk or an attorney.

If the other parent isn't involved: Washington sets no fixed number of months for abandonment. It depends on the parent's overall conduct (RCW § 26.33.120). Occasional child support doesn't by itself settle the question. The court looks at the whole relationship, including whether the parent has stayed meaningfully in the child's life. Contested or unknown-parent situations are fact-specific, so talk to an attorney or the Superior Court clerk about your own case.

Background checks and home study: Washington requires criminal background checks for adoptive parents. Home study requirements are in RCW 26.33.220, and the clerk can tell you whether and how they apply to your situation.

What it costs: Court filing fees typically run $200-$500, and the total is typically under $1,000 when you prepare the paperwork yourself. Hiring an attorney for the whole process commonly costs $3,000-$5,000+.

What to expect, step by step:

• Gather information about you, your spouse, your stepchild and the other parent.
• Prepare the petition and supporting documents for your county.
• File with the Superior Court clerk and pay the filing fee.
• Arrange for any required notice and consents.
• Attend the hearing, where the judge decides whether the adoption is in your child's best interest.
• After the decree, ask the Washington State Department of Health Center for Health Statistics about updating your child's birth record.

Why families do it: A legal adoption can give your stepchild 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. The price is $349 for the first child and $99 for each additional child. Court-ready documents are delivered within 24-48 hours after you finish the questions, and we offer a 100% court acceptance guarantee.