Washington Revised Code Title 26. Domestic Relations § 26.09.020. Petition--Dissolution of marriage or domestic partnership, legal separation, or for a declaration concerning validity of marriage or domestic partnership--Contents--Parties--Certificate

(a) The last known state of residence of each party, and if a party's last known state of residence is Washington, the last known county of residence;

(b) The date and place of the marriage or, for domestic partnerships, the date of registration, and place of residence when the domestic partnership was registered;

(c) If the parties are separated the date on which the separation occurred;

(d) The names and ages of any child dependent upon either or both spouses or either or both domestic partners and whether the wife or domestic partner is pregnant;

(e) Any arrangements as to the residential schedule of, decision making for, dispute resolution for, and support of the children and the maintenance of a spouse or domestic partner;

(f) A statement specifying whether there is community or separate property owned by the parties to be disposed of;

(g) If the county has established a program under RCW 26.12.260, a statement affirming that the moving party met and conferred with the program prior to filing the petition;

(h) The relief sought.