It's all very well saying kick the man out,what if the home is his,
I have been in a similiar situation, but my H had never met my eldest son,who lived with his father by choice, but wabted to come back to me,he was only about 13 at the time, i wasn't even allowed to let him visit me,even though i had my [now ex] children to stay
I already had 2 children when i remarried, and he wasn't good to them either, he always called them my children and even at Christmas i had to buy MY childrens presents
He owned the house,which he put in his name only
I feel very sorry for the op,
Things are not always easy
I couldn't do this as mine lived with his father at that age
He doesn't even speak to me now,as he didn't understand at that age and blames me
There were other reasons i eventually left, but it is not easy
If i was you op,i would leave and go to my son