Though I am not a foster parent, I once worked in a center that provided therapeutic care to infants and toddlers in these situations.
It is AMAZING what these little ones can overcome. Placed in a good, safe, caring, loving, routine driven home, I have seen babies born addicted, SBS babies, and severely abused and neglected babies THRIVE. A strong attachment in the first few months of life is seriously the best medicine a baby can have. If you can provide this for this baby, there is a very good chance that she will be A-OK.
Mama of 4