To complete the form, fill in the county and cause number for your case. ❖ If your address changes before your case is final, you must fill out, file, and serve a Notice of Address Change, form FL All Family 120.This article explains how to modify temporary orders in a Washington divorce or family law matter. There are many reasons a party might seek modification. Welcome to Washington State Courts. Petitions for modification may apply to child support, spousal maintenance (alimony), or the parenting plan (custody arrangement). For tax filing status post-divorce, See Tax Issues After a Washington State Divorce. Washington family law allows for modifications of the final divorce decree for child custody, visitation, child support, and spousal support. A trial payment plan is legally required for HAMP modifications and for most FHA partial claims as well. Divorce. To start your case, complete the necessary forms from the list below.