[MrsD820]

I would like to state, having worked with institutionalized children. I would not count the behaviors described as the normal roudiness and shyness children show around adults. These behaviors are far more serious than hiding behind the adults she's comfortable with.

Take her to a Mental Healthcare worker who's experienced in dealing with young children. Being she's come through the Fostercare system, there may be something there no one has picked up on yet. Even if its nothing, it wouldn't hurt to just make sure the little darling is okay.

And correct her right away. Don't let the bmom disrupt her routine by making it "okay" to do things when she's around. This will only cause more problems down the road. The adoption is finalized. There is nothing she can say about how you discipline your dd. And no one can get offended at a timeout for biting or hitting. Just remember, one minute per year of age.