If she's near NE Philly Airport, I'd definately use Hortman. It's a fantastic FBO, they go out of their way to make their customers happy, and have a ton of planes. She can train in Grumman trainers, 150s, Skyhawks, or Warriors. They've also got some beautiful Tigers on the line, including some new ones, Archers, Arrows, some twins, and even a Tobago. I really can't recommend them highly enough.
A couple others possibilities would be Wings Field, another FBO that sets the standards for customer service, with 5 Skyhawk SPs, two new Archer III's, two DA20s, a C150,an Arrow and a twin on the line, with rumors of some DA40s on the way. That might be a bit of a drive, though, depending on where she ends up living. Also, I believe Gary from POA is involved with the new FBO at Quakertown, if we want to throw some support at fellow board members, but that would also be a bit of a drive. They've got one brand new, glass panel Skyhawk SP on the line, with at least one more coming, IIRC.
Finally, though N10 would really be out of the way unless she lives out toward the western burbs, I'll plug the flight instructor who finished me up, Barb Reeder. An excellent, experienced teacher with a knack for communicating how things should be done. They don't have fancy new planes, though. 5 152s and two Skyhawks. Availability of the 152 is excellent. The planes are heavily used and show it, but are safely maintained.
http://www.hortmanaviation.com/DesktopDefault.aspx
http://www.wingsfield.com/