She can file an injured spouse form to protect part of the refund. It can be mailed in even after e-filing the return. Be aware it takes about 14 weeks for the IRS to process an injured spouse form.
INJURED SPOUSE
https://ttlc.intuit.com/questions/1910698-how-do-i-file-form-8379-injured-spouse-allocation
And no--she cannot file as Head of Household. That status does not fit her situation at all.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
