Stan, you're asking the wrong people...
Stan, your question pops up regularly on every BB and Forum I visit. And answers quickly burrow down into the anecdotal accounts of others, at different times, with different living arrangements and mostly in different states than the poser of the question.Why not start with the two relevant county tax collectors (Charleston & Carroll, I believe), lay out in simple terms the circumstances that you know to exist, and ask for their interpretation. Do it without offering your name, and both you and they will have nothing to lose by speaking directly. Ask for printed sources to support the interpretations you receive (brochure, URL, letter)...and then start from a position of knowlege rather than scuttlebutt. You can always fish around on the docks and BBs after the fact, to see how the rules work on the ground...but start from what you can document and know to be true.There's always the luck of the draw, a desire for a fiddle, and/or the bliss of ignorance that will shape someone's answer.And BTW, be on the lookout for both States to believe you are liable for some tax, too.Jack