The path of least resistance would enlist the help of a knowledgable Buyer's Agent. The kind of specific info your requesting could be found in a nuber of places so she's going to have to do some detective work. That will net a few options but maybe not your dream house, so here's what I've done for clients before, I will scan current & expired listings that haven't sold after months and months, so I'll call all the listings and present the lease-back option - I've had pretty good success so far. Just an FYI, lease-backs are full of their pros/cons as well, make sure you know your stuff before you sign on the dotted line.
And Good Luck!!!