Healthymom76-I am moving this thread to the special needs parenting boards, in the hopes that the moms there will be able to help you find the resources for what to do if your son is bipolar, or to figure out if his behavior is a reaction to the divorce, or....gosh...my worst thought is that children act out in extreme ways when they have been abused!!! I know you don't think your ex didn't do anything to your child, but are you sure that since he is in trouble with the law for something involving a 15 year old, that he didn't harm your son???
I think special needs parenting might be the best place for this thread, because a child who gets kicked out of daycares, and their mom has to quit their job to stay home with....probably has some undiagnosed major things going on.