This article is a detailed exploration of questions about residency, domicile, and all their ramifications. 4. Complete an Affidavit of Domicile and File it with the Court.If you're relocating permanently to MN, you just need to get a MN address - Mail service, friends, family, whatever. "Domicile" is the place you intend to make your home permanently or for an indefinite period of time. MN actually counts as a full day any day that you are in the state. So if you would like to become a SD domicile, SD says you only need to be there one day. In most circumstances, there is not a set time requirement of "X" number of days or weeks that you must be in a state before you can establish a new domicile. You need to establish an address. Most do this through a mail forwarding service. Wondering how in the world you narrow down your choices and pick the domicile state that is best for your RV family?