Yes, call the settlement house where you intend to do this. We can't tell. First, it very much depends on what your purchase contract says as responsibility for certain things.
The biggest is a 1% transfer tax that gets paid to the state. Then the person doing the settlement will want to be paid for their time and this usually is augmented with additional charges to file the documents, courier them to the other involved parties (like the seller's lender). Of course, in most PA jurisdictions you pay the taxes for the calendar year early (unless you close in January before they're due), so you'll have to reimburse the seller for any amounts he has prepaid (for example, if the tax is $2000/year, and you close July 1, you owe him $1000 for the months he's paid of your ownership). Similarly, you'll may also have to pay for your share of any prepaid utilities.