Taxpayer's W2 used her boyfriend's PA address. Driver's License is New Jersey. She normally files a New Jersey return. Can I file her as a New Jersey resident, claim the NJ-COJ for local, and file a Pennsylvania state return as a non-resident and get the state taxes back that she paid? She is a teacher in Pennsylvania, but hasn't officially changed her residency. She normally uses her mom's New Jersey address.

Thank you all in advance for your help.