I had a daughter and her 3 children move in with us 3 different times. 1 time her then husband was with her. It is a challenge but the blessings that come with the challenge can not be counted. We have a bond with her children that has been very strong and I know we wouldn't have had this bond had they not lived with us. Just be glad you can be there for her and help pertect the children from their abusive father.