Title stuff in PA doesn't happen at the dot. It happens at a notary and gets sent to Harrisburg for processing. If you are buying something registered in PA you have to have the person selling and the person buying go to the notary together and things have to be signed in front of the notary. As for out of state, things vary... I know for NJ, the owner just needs to sign a portion original bill of sale/title(from the dealer, not a random one). You then take that title into a notary in PA and they do the paperwork, you pay the sales tax and viola. I know MD and NY are similar, but might have titles...

That said... I would very much recommend calling a PA notary about this. The laws can be confusing sometimes, and they know them well. Its a very simple way to get the right answer.

Call a place near where you will be moving. Give them your situation.... Ask them what to do. They will assume that you are going to use them for the transfers, and you honestly should because they are giving you some knowledge for free.

Seriously. Don't listen to anyone on reddit, including myself. Just give them a call and you will have your definitive answer.