My ex is slapping my son in the face, and my ex boyfriend is slapping her too, I want my son out of that home.. Its not healthly for him or and its not safe,. What can I do?

How old is your son? Did he say why they slap him?

3 1/2 yrs old, Yes be cause she (mom) was mad. and she mean

What does the current custody agreement say ?

You hire an attorney and file a motion for a change of custody..