wow, just imagine what she is going to do to your property, throwing shit around. you just have to do what you need to do to get her out. Do you have access to the inside of her apt? Can you see if she has done damage, mabye take pics?
next lease should say you can terminate for any and all reasons at your discretion.
I guess I dont understand the whole board part. its your property. I dont understand why you are not free to kick her out?