I know nothing much about Pennsylvania collections practice and issues, but it seems to me that you would need to use a Pennsylvania court in the county where the property is likely to be located, and once you get a judgement from the court, use the Sheriff or its equivalent to enforce the judgement.
Some time with a Pennsylvania lawyer on a consultation basis should help you decide whether it is worth your time, effort and money to do this.
Good luck.
Some time with a Pennsylvania lawyer on a consultation basis should help you decide whether it is worth your time, effort and money to do this.
Good luck.