To ensure that you are using the appropriate form and that it is completed correctly, The Clerk recommends that you seek legal counsel. Choose your county below for a downloadable Declaration of Domicile for Broward County, Miami-Dade County, Palm Beach County, or Collier County.How do I handle a proof of domicile when filling Form I864? To complete Form I-864, the petitioner must meet certain requirements. Changing domicile requires two important steps: (1) establishing a new domicile; and (2) severing the connection to the old one. According to Florida Statutes §222.17, the Affidavit of Domicile must be filed with the clerk of the circuit court in the area where you intend to reside.