You should consult with an attorney to determine what all of your options are. It is possible but may be very difficult. Keep in mind that an 8 year old does not get to make a decision as to where he gets to live but the courts do look at what is in the best interests of the child. Good luck.
You are in a very difficult situation. In your summation of the facts, you did not mention where your step-son's mother is. Is she in the picture? Deceased? If mom is not in the picture then I believe you would have to seek guardianship of your stepson. This process is done through children's court as opposed to family court. In order to obtain guardianship you would have to prove that your soon to be ex-husband is an unfit father. You should consult with an attorney who specialized in the juvenile code to assist you with this. If mom is in the picture then your situation is complicated more by having to prove both parents unfit.
Non-lawyer suggestion - no matter what happens make sure your step son knows that you are always going to be there for him no matter what. You don't have to be this child's "mother" to have a positive influence on his life. Best wishes!!!
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