Prepare a Petition for Dissolution of Marriage and Summons. The petition must state the grounds for divorce, which in the state of Washington may simply be "irreconcilable differences" with no fault alleged or proven by the petitioner. Prepare a proposed Summons, which must be issued by the Pierce County clerk. The Summons is a court order to the respondent to file an Answer to the Petition.
File the Petition for Dissolution and Summons at the Clerk of Pierce County Superior Court, 930 Tacoma Ave South, Room 110, Tacoma, WA 98402. You may file in Pierce County if you are a resident there, if your spouse is a resident there or if either party is a member of the armed forces and is stationed there. File any Motions for Temporary Orders, which request the court to decide important matters while you are awaiting the hearing. Have the court clerk enter the petition and motions into the record and issue the Summons for service.
Serve the Summons and Petition on the respondent (your spouse), either through the sheriff's office of the county where he lives or by using a private process server. If your spouse has hired an attorney, the attorney is authorized to accept service and should also be provided with any motions or other pleadings that you file in the case.
Receive the respondent's Answer to your Petition for Dissolution. If you have filed a Motion for Temporary Orders or a Motion for Restraining Order, the court will schedule a hearing. Once service is effected, however, state law imposes a 90-day waiting period before the hearing on the Final Decree may take place.