Personal service isn't required ... after filing the complaint, the constable will post the property since you are suing via a Landlord Tenant Complaint. I have no idea what you mean by a "higher court" - you file w/the magistrate. No attorney is needed. The filing fee which incldes the constable fee to post the property is probably less than $200 - the fee is graduated based on the amount of the claim & number of defendants. You don't have to wait long for a court date ... it's scheduled within 10 days.
Collecting on the judgment (especially if you need to move it to another state to execute on) is a different matter but in Pennsylvania, getting the judgment is easy and without the judgment, collection would be an uphill battle.