I would not ... I repeat ... I would not allow this brother to live with me ... If the parents ask why, simply tell them that your brother knows why and that it's not up for further discussion.

I am also a survivor of incest and abuse by older siblings (as well as my parents) and decided the best way to take care of my physical and emotional well-being was to cut off all contact completely.

This was not an easy thing to do, nor is everyone willing or able to take this route. However, it has served me very well.

Wishing you the best in your healing & recovery process.

Sincerely,
Pfrog!