My daughter

[levettepough]

My daughter has been dating a man for 7 years now. She has had two of his children and while the first one was only seven months old he snuck around with his x and got her pregnant. When she was 4 he got his x preganant with another. So there has been two babys made with x while on the first baby with my daughter. Now my daughter has a second child with this same man and she is only 7months. This guy has not worked and will not work. He has not brought anything to the table. His mother has always been a crutch for him. When he and my daughter lost their apartment he could always return home to mom just as my daughter return home to my mother her grandmother. But now his mom is dead and he is living with his stepfather who does not care that much about him. And the reason being is that the stepfather gets up and goes to work everyday at the age of 70 and with prostate cancer. And he lies around everyday doing nothing. My daughter has moved in and out of my mother's house 5times becuase of him now that his mother is gone he is depending on my daughter. What to be the best advice to give her on not leaving because she is not prepared to take on another apartment alone with three babies one is him. I don't want her to leave my mothers house just so that he will have a place to stay. How do I approach her without upsetting her to the point that she will leave. Neither child once to be with him especially the other one.