drop him of at a foster home
Yes.
Your mother is not considered a natural heir, as you are expected to outlive her. And there is no need to 'disown' a child, you simply have to name them and say they don't get anything.
I would disown my son if he were a murderer.
no she does not have the right
Yes. You just have to write in your will that your adult child gets NOTHING.
The closest thing you could do would be to get a restraining order. Because he/she is a bro/sis you can not "disown". disowning refers to taking someone out of your will. if if you want to. you could do that in addition. but moving away would be the closest thing to "disowning.
no
No, I don't think so.
Yes. That is typically accomplished by disinheriting that child in your Will.
You can obtain a Protective Order against your son and have him evicted from the home (at least for a time).
once a week sounds nice.
no
no its a myth to scare little children