Honeygirl You can definitely tell the renters they need to pay until the end of the lease or until you find other renters. Of course it's illegal to collect rent from xtenants while you have place renter to another. However,(I believe we live in the same state), our state is NOT landlord friendly. Meaning if they choose to move out and not pay, it probably wouldn't be worth your $hile to go after them in court for 3 months rent.
NotDesperate I would also pursue wage garnishment. However it can be hard to make someone pay even with a judgement.