At some point your just have to pay the piper. We bought our boat to live aboard. We bought her new, in MD, in 2009. We had 90 days to get it out of state or pay 5% sales tax, $18,500. As soon as we could, we got the boat to Deltaville VA where I was running a boatyard. Virginia had no sales tax obligation for the boat. Deltaville is in Middlesex County their personal property tax works out to about 1%. Our first year in VA we paid $3,700 in property tax. After 4 years in VA we had paid $13,500. So much for low tax state. Now there are ways around this by moving to another tax district. But it would cost $1,200 plus electric for a live aboard winter slip in Hampton and the the commute would be 1 hour each way. (vs walk to the office in Deltaville) So if you figure out the cost of running a car 6,000 miles and add tolls and then compare it to the slip, I'd be out of pocket over $2500. to avoid a tax of $3000. And I'd be driving 120 hours in the dark in deer country. So we just paid the tax. In year 5, I was transferred to MD. MD is pretty strict about collecting their sale/use tax on any boat in the state over 90 days. So we went to the DNR office in Southern MD to pay the piper. They had a little trouble finding our boat's value in the tax books, but they settled on a value and we paid the tax. It worked out to be equal to two years of VA tax. Now have been FL residents for 3 yers. We are in FL 4 months and in MD 5 months a year. Our state of principle use is Md. we are documented in Annapolis. Now we have the MD use sticker which cost $10 every two years. So, no matter what state we might want to live in, we have paid the sales tax in MD and that should cover us about anywhere we keep the boat. In theory, we should get the sojourner permit since we are in FL about 120 days, but no one at any of the FL marinas we have overwintered in, could direct us to who, what, why and where to get the permit.