King County Superior Court - Seattle, WA

Family court help for King County parents who can't afford an attorney.

We prepare court-ready documents for self-represented parents in King County Superior Court - parenting plans, trial briefs, custody petitions, modifications, and more. Professional preparation without the attorney price tag.

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Self-represented in King County family court? You are not alone.

King County Superior Court handles thousands of family law cases every year. A significant portion of those cases involve at least one self-represented party - someone who couldn't afford an attorney, or who chose to represent themselves because they believed in their own case.

The problem is that King County's family court has specific local rules, specific formatting requirements, and specific procedural expectations that most people don't know about until a clerk rejects their filing. Documents submitted without proper captions, wrong margin sizes, missing certificates of service - these are all reasons filings get sent back, costing you time you may not have.

Family Court Navigator exists to close that gap. We prepare your documents to King County's exact standards. We know the local rules. We know what Judge so-and-so's courtroom expects. We know the difference between what the statewide forms say and what King County's clerk actually requires.

Important: We are a document preparation service - not a law firm. We do not provide legal advice, and we do not represent you in court. We prepare documents based on the facts and goals you provide to us. All decisions about your case are yours.

What you need to know about King County Superior Court

Local rules that trip people up

King County has its own Local Family Law Rules (LFLRs) that supplement the statewide Washington State Civil Rules. These aren't optional - if your documents don't comply, the clerk can reject them or a judge can strike them. The most common issues we see:

  • Document formatting: King County requires 12-point font minimum, 1-inch margins on all sides, double-spacing for declarations, and a specific caption format. Our documents meet all of these standards.
  • E-filing requirements: Most King County family law filings must now go through the Tyler Technologies e-filing portal. Paper filing is limited and may require prior approval.
  • Service requirements: After filing, you must serve the opposing party and file a certificate of service. Many self-represented parents forget this step - it can result in hearings being postponed.
  • Trial brief deadlines: In King County, trial briefs are typically due 5 court days before trial. Missing this deadline can result in your brief being excluded.
  • Agreed parenting plans: King County has specific requirements for how agreed parenting plans are submitted when both parties agree. The process is different from a contested case.

The King County family law courthouse

Courthouse
King County Superior Court - Maleng Regional Justice Center (RJC) and King County Courthouse
RJC address
401 Fourth Avenue N, Kent, WA 98032 (South King County cases)
Seattle address
516 Third Avenue, Seattle, WA 98104 (Seattle-area cases)
Clerk hours
Monday-Friday, 8:30 AM - 4:00 PM
Self-help center
Fee waiver
Form FL All Family 001 - available from clerk or at courts.wa.gov/forms

Which courthouse handles your case?

King County has two main locations that handle family law cases. Which one you file at depends on the geographic area of your case. If you're unsure, call the clerk's office at either location - they can tell you within a minute where your case should be filed.

Cases filed in Seattle are generally heard at the King County Courthouse on Third Avenue. Cases in South King County - Kent, Auburn, Renton, Federal Way, Burien - are typically heard at the Regional Justice Center in Kent.

Documents we prepare for King County family court

Every document we prepare follows King County's local rules and Washington State formatting requirements. We prepare:

Parenting plans
Included in packages
Proposed parenting plan, residential schedule, decision-making provisions - formatted to King County standards
Trial briefs
Included in Phase 1
Your case in writing before the judge. The most important document in your trial. We draft it based on your facts and goals.
Declarations
Included in packages
Your sworn statement of facts. Properly formatted, signed under penalty of perjury, ready to file.
Custody petitions
From $250
Initial petition to establish a parenting plan and custody arrangement through King County Superior Court
Modification petitions
From $250
Petition to modify an existing parenting plan or custody order due to a substantial change in circumstances
Proposed final orders
Included in packages
The order you want the judge to sign. Drafting this in advance shows the court exactly what you're asking for.
WSCSS worksheets
Included in packages
Washington State Child Support Schedule worksheet - required in every case involving child support
Exhibit packages
Phase 2 - $2,000
Your evidence organized, numbered, and formatted as trial exhibits ready to submit to King County Superior Court

Who we work with in King County

We work with self-represented parents across King County - from Shoreline and Kenmore in the north to Federal Way and Auburn in the south, from Bellevue and Redmond on the Eastside to Burien and White Center on the West. If your case is in King County Superior Court, we can help you prepare for it.

The parents we help most are those who:

  • Cannot afford the $10,000-$30,000+ that full attorney representation costs in King County
  • Have a case they believe in strongly but don't know how to put it on paper in legal language
  • Have an existing order that isn't working and need to file for modification
  • Are approaching a trial date without any documents prepared
  • Want to make sure their documents meet King County's specific formatting and procedural standards

We are not a fit for everyone. If your case involves serious domestic violence allegations, complex criminal history, or requires active legal strategy, you need a licensed family law attorney. We will tell you honestly if that's the case - and we'll help you find resources to locate one.

Common questions from King County parents

How long does it take to get documents for King County Superior Court? +
Standard packages are 5-7 business days from the date we receive your completed intake form. Trial preparation packages vary based on your trial date - we work backward from your deadline to ensure everything is filed on time. Rush turnaround (48 hours) is available as an add-on for urgent situations.
Do I have to appear in person at the King County courthouse? +
For most filings, you can e-file through Tyler Technologies without going to the courthouse. However, for your actual hearing or trial, you must appear in person at the assigned courtroom. Some preliminary hearings may be held by video - the court will specify this in your notice of hearing.
What is the filing fee for a custody case in King County? +
Filing fees in King County vary by case type. An initial petition typically costs $200-$300. If you cannot afford the filing fee, you can request a fee waiver using Form FL All Family 001. The clerk will review your financial information and may waive the fee entirely. We can explain this process but cannot file fee waiver forms on your behalf.
Does the other parent have to agree to our parenting plan for it to work? +
No. If the other parent agrees, you can submit an agreed parenting plan and typically avoid a trial. If they don't agree, the judge decides at trial based on the evidence and arguments both sides present. We prepare documents for both contested and uncontested cases.
What is the RCW 26.09.187 "best interests" standard King County judges use? +
Washington State law requires judges to decide custody cases based on the "best interests of the child" as defined by RCW 26.09.187. There are 16 specific factors the judge must consider - including each parent's relationship with the child, work schedules, the child's school and community, and any history of domestic violence. We explain all 16 factors in our free guide and make sure your documents speak directly to them.
Can I modify a custody order from another Washington county in King County? +
Generally, modifications must be filed in the county where the original order was entered, unless both parties have moved and neither lives in that county anymore. If your original order was entered in another county and you've since moved to King County, there may be a process to transfer jurisdiction. We can help you understand the options, but this specific procedural question is one where consulting a licensed attorney is advisable.
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