Basically in all of them, they all found deficiencies in both sets of parents, made recommendations, but did not do a change of custody.
In our case BM had to do a psych eval in the second go round. The evaluator said it was the most difficult case she had ever reviewed (a lot of PAS involved so SD was pretty vocal against us at the end and very obviously supporting her mother), but she decided to go ahead and recommend letting SD move with her mother on the condition that her mother and SD continued psych care once relocated. I think BM's new husband knew a counselor. They both went twice and where released from care even though the psych eval was very bad, she is an admitted alcoholic, etc.
In BM custody case for the two small children, she was recommended to go to anger management, but never complied. The custodial parent (the father) never pushed anything with her (despite his wife's objections) because he is terrified of her and how much money she keeps costing him in legal fees (her new husband's family is very well off and has financed over 70,000 in court and attorney's fees so far between the two cases). They are again in another battle. We'll see how that goes. She's psychotic and alsays seems to come without very much consequence.
You just have to keep in mind, no matter how many people she gets to support how bad the step mom is, she will find things and people on her side to show how bad she is. A change of custody is not impossible, just is not recommended very often.