In Florida, if the defendant listed in the documents cannot be found, the court may allow service by publication in a newspaper. This method is perfect for Family Law cases and Foreclosure matters. In order to publish, the Court will require an affidavit of due diligence. In addition, the affidavit will need to be precise as to how many attempts were made and the outcome of those attempts. Finally, the attorney will have to demonstrate that there is no other address for the defendant that can be attempted.