Domicile can be tricky - luckily, we have experienced attorneys! Affidavit of Domicile is a form in our office for people to sign before a notary claiming Texas to be your home.We file the form with the court. In short, you have one, and only one domicile; however, you may have many residences—in theory you could have a residence on every street, everywhere. An Affidavit of Domcile is a sworn statement that you file with your county testifying that you intend to domicile in a new state. Learn how to choose the right domicile address and tap into a state's unique advantages for your nomadic lifestyle. Typically, prospective fulltime RVers consider 3 states in which to domicile: Florida; South Dakota; Texas.