Steven J. Fromm | Steven J. Fromm & Associates, P.C.
To file a return for a decedent, you either need to be a spouse or the personal representative of the estate. You would have to go to the register of wills in the county where she last lived to get letters of administration. That will allow you to act for her estate. You should consult with an estates lawyer in your county to go over the details and procedures.
Answer Applies to: Pennsylvania