[ResAlien]

edit: nm.

Appears you're already pretty hosed. We all like to be quite glib with our responses, but it really depends on the kind of person you are.

Person 1: Honest, responsible, nice etc. If this is the case, report her to whatever agencies you can. On the web, there must be sites regarding that area for "do not rent from this person" etc. Post on those profusely. Continue calling and try to resolve it.

Person 2: Rage, anger, little respect for laws. Screw it. You've lost the money and retribution is all you have left. Have someone other than yourselves slash her tires. Know someone with a crappy car? Hit and run hers while it's parked (late at night, of course). At least you can get even and cost her the same if not more than what she screwed you for.

Or person 3: Hippy. Karma will get her in the end. Boring option.