Biting at this age is one thing (and quite common) but to bite and break skin (or remove chunks which i really, really hope was an exaggeration ) is another thing. It takes a good amount of anger and strength to break skin.

I think the ladies above have given sound advise. I hope the termination goes smoothly for you. I would suggest documenting any incidents (like those you mentioned in original post) so you have it on file should you need it.

This child is NOT suited for group care in a home with one adult.