Domicile can be tricky - luckily, we have experienced attorneys! I've been Googling but can't find an answer to my question of how to establish a domicile address in Utah for voting as a fulltime RVer.Is it legal to live in an RV full time in Utah? In Utah, you can live full time in designated RV parks, resorts, and campgrounds. The first thing you will need to do in order to establish RV permanent residence in any state is acquire an address in the state. You must file a Utah TC-40 return if you: 1. Are a Utah resident or part-year resident who must file a federal return,. 2. The first step to establishing your domicile is to acquire your new address. This address will be used on all your papers that ask for your "permanent address.