If you have a good lawyer and a lot of money and patience, it is possible.
Convicted felon.
No, you'll need a proxy.
There is a process. You will need a good lawyer, money and a lot of patience.
Yes. in PA for 12 years.
Nowhere.
No. Regardless of Pennsylvania laws, it is a FEDERAL offense for a convicted felon to own or possess a firearm - it has been ruled that muzzle-loading black powder arms fall under the category and definition of firearms. (USC, Title 18)
Convicted felons in PA cannot vote while serving their sentence and cannot ever serve as a juror. They also lose their right to carry firearms.
In Pennsylvania, you do not need a licence to own a firearm, but somebody convicted of a crime would not be able to own a firearm or live in a house with one in it.
A convicted felon has a tough time when it comes to employment unless the person knows somebody that can help them out. I have a job only because they didnt check my record but it not a decent paying job.
You haven't asked a question, you've stated a situation.
Yes. The second amendment says you can do that. The state is allowed to impose reasonable restrictions on things like the length of the barrel and to restrict the possession of firearms by people who have been previously convicted of certain crimes, but assuming you mean a normal, unmodified shotgun and aren't a felon, then yes.
Yes, you can own them but dont use them in the wrong situation. But no you cant bring them to the PA