How do you deal with someone like this?

Someone needs to grow a pair and let this spoiled leach know what's what. Since she visits your parents house it really should come from them. But it doesn't matter where it comes from, it just needs to be done. You'll be doing her a favor in the long run, though it might hurt her now. She needs to know how others perceive her...the longer you wait, the longer it will take for her to grow up. Idea... why not copy this a let her read it? Just a thought. TC, and good luck