Please get yourself checked out for STDs. You don't know how long he's been using or what he does when he's using. Crack and promescutiy go hand in hand.
Good move on the lawyer. His addiction will bankrupt you, if you allow him to do so.
How does what he says, means or wants matter? Your job is to protect your child. Drug addiction and children don't mix. Your family home is not a flop house for tired addicts.
You may also want to seek some professional help as it relates to boundaries. and grief counseling.