Can I sell a house with Squatters?

[Rachel Degennaro]

I have a townhouse in clairton, Pittsburgh. (I moved to another state) I had a guy with a verbal agreement to live there and fix the place up a little so I could sell it. Well he did not hold up his end of the bargain, so I had him move out. The house was empty. After a few months he must of told his friend that the house was empty (and I was out of state) and gave then the key he stole.

Apparently they've been there for 3 months or so and I was able to get her phone number and was trying to be nice and give her the chance to leave willingly before involving police/court. She said she was going to leave but wants a month to do so. I don't know if I can trust her or if in a month she will change her mind or come up with an excuse to not leave.

police won't remove her for tresspass since she was given a key, even though it was by someone who had no right and wasn't even a tenant at the time.

I have trash and sewer utility bills in my name from them. Although they say they are paying gas and electric. I am not sure if thats true.

At this point I just want to be done with this property. They are trashing the place. Im too far away to deal with this and its getting expensive. 

What is the course of action here? Can I just sell the house (with the squatters) to someone local that feels like dealing with it?

Can I sue them for "unpaid rent" and the ultities? Sewage in this town can be put as a lien. 

Any advice greatly appreciated thank you.