Foster to adopt teen girls??

We are fostering to adopt a teen girl (13) along with her 14 year old brother.Both were sexually abused. My husband and I both work in law enforcement so we would loose our jobs immediately if there were any false allegations. This, of course, was a huge concern to us.The kids have been with us for 10 months and we've certainly have had our ups and downs. My son is diagnosed with FASD which carries it's own set of issues but my daughter is the one I really know I'm going to have my hands full with.She internalizes alot of her feelings and has put up huge walls. We had a huge argument with her last night - lots of disrespect from her. I am in the process of trying to get her more intensive therapy.Even child is different - with teens you have to stay on top of them and one step ahead of them at all times. But I think that goes for any teens - except ours come with alot of baggage, too.I say go for it. There is definately a need for homes for older kids.