Boundaries, out of session contact, physical touch (if that's important to you), how much of herself she shares in session, her methodology and background (CBT? Psychodynamic? Attachment-based? Etc...), her specialities (depression, trauma, personality disorders, ect...), how she handles various situations you have run into previously with therapists (preoccupation, difficulty opening up, ruptures, etc...), and any other thoughts or concerns you may have.