Spousal or Partner Support Declaration Attachment. When filing Form I864, it is important to fill out the form completely and provide all required information with your initial filing.You will need access to a printer to use this website so you can print your forms and file them in person. I am sponsoring the following family members immigrating at the same time or within six months of the principal immigrant named in Part 3. Fillable forms are available for download in multiple languages from the California DCSS to apply for services and other child support-related topics. In this guide, we will explain who needs to complete Form I864, when to file it, and how to fill out Form I864 stepbystep. Marriage License Application. Student needs to fill out the Residency Reclassification Appeal Form and submit electronically. Child or Spouse of a Member of the U.S. Armed Forces (Cal. Then you must fill out the Complete Financial Disclosure of the Next of Kin form.