So in PA this is a weird one. You can have just about anything with an exotic animal permit. In order to get an exotic animal permit, you pay $50/yr, but you also need two years training with someone who has an exotic animal permit AND is specifically permitted to handle the type of animal you're trying to handle. There are also rules around getting various animals at both the state and federal level, and a few species are exceptions because of their potential to go feral and ratfuck our entire ecosystem but assuming the getting is legal the having is also legal with the permit.