i dont think youd be able to transfer it in ohio without proof of residence, you'd transfer it in PA and youd pay PA sales tax
each state will have a different process for an out of state title.. I know in ohio to get an out of state title converted to ohio in your name, you get an inspection which is a piece of paper they make you pay a dollars for, they write the vin on it, walk out to the car/bike etc, verify the vin, and thats it. dumbest thing ever.
do not know what PA's out of state process is, but I'd expect something similar.