This page contains all of the Family Law court case forms that the Clerk's Office provides. Instructions on how to fill out the forms and register them are on the Hillsborough County Clerk's website.Use this form to show they have adequate means of financial support and are not likely to rely on the US government for financial support. After you have completed the forms and have signed and notarized them, make 2 complete copies of everything you have signed (one copy is for your records). This form should be typed or printed in black ink. After completing this form, you should sign the form. 864 Affidavit of support How to fill out the Form 864 immigration Tips. Fill out all application forms completely and attach all required documents. In Florida, it's based on one spouse's need for financial support and the other's ability to pay. Reclassification Application.