Actually, there are two. The first is that she calls herself a Republican, then hikes your taxes every year. Just be honest and make the switch, Jane - you'd get along well with Rendell and his ilk.
The second one is far more sinister - if it were true. It is just a theory. Of course, it would be very hard to prove. There is a great problem in Pennsylvania with property taxes. Hundreds (if not thousands) are losing their homes each year because of rampant tax hikes. My wife's uncle lost his home. School boards (especially in Grove City) are guilty for raising taxes year after year. Jane Rath is the president of the GC board.
Mrs. Rath also sells houses for Grove City Realty - a fine organization, through which I purchased my house. I do not know how successful Rath is in her trade, but I do know that GCR has their signs in front of most of the houses in the Grove City area.
As Rath continues to raise property taxes, people continue to lose their homes. As a result, Rath has more opportunities to sell more houses. She'll sell you a house, then tax you out of it, then sell it to someone else.
I would love to say that this conflict doesn't exist, but how can you be sure?