Criminal Law Questions? Ask a Criminal Lawyer.
What do you mean when they say they are forcing you? What have they done?
If you are being abused, were going to seek an order of protection anyway, why not seek to have this person charged for assaulting you?
I can advise how to navigate with child services, but why complicate things? If you're being abused you should keep your safety and that of your son at the forefront.
If child services believe that this person being present creates a dangerous environment for your son, they'll start a court process to have him removed. Unless you say that this person never abused you or your son, if you are unwilling to seek charges, it will appear that you are the stereotypical abused spouse, and they'll likely take your son.
If there are no other questions, please remember to rate my response. Just Answer only credits me for my responses if they have been rated positively. Thank you.