Regarding "We are also wanting to know if BM has the disorder or has any other psychiatric issues in case it is relevant to custody issues. If she is not stable, we will file for a custody change so SD can live with us unless BM gets treatment" ----- absolutely not the way it works in family court. You don't get to go into court and say biologicalmay have mental illness therefore we want her tested or want custody till she gets help. Only if Mom displays signs that actually cause problems or put child in actual harms way would this ever be an issue. You can continue to teach the child coping mechanisms, but you also have to realize your coping mechanisms are not the only way to deal. Dramatic hormonal teenage females can develop into "normal" adult females.