Wow, my worst fears potentially confirmed - pay 6% to PA and then a year later have to pay 5% to MD. Ouch! For the boats I am looking at, this is big money. This is exactly why I asked this question.
Does anyone else here have experience with moving a boat from PA to MD? Did MD exempt you from their excise tax because you paid 6% to PA?
Meanwhile, I'll try to figure out whom to contact in MD to get a written answer to my question.