Also, just to further clarify some things:
1. Is it possible for a familiar to kill their witch if the witch is unaware of the familiar trying to killing them? Is the bound between the witch so strong every action they take is something to protect or be neutral to witch and has to be some they like, or is that they simply can control the familiar if they want to but it is necessary something that happens 24/7.
2. Are only humans able to be hunters? By how you worded it in your last post, it is a bit vague.
3. Would a familiar who blatantly killed his witch be allowed to join the hunters; Would it be different if he was forced to become a familiar?