What she said, because she did it without the words I would have used. And why are you not posting that you already have called the police? This isn't something that anyone with half a brain would say, "gee you might have overreacted."
I know in my state, once convicted they are not allowed around children, period. There has been a case or two where some dumb-horses-behind woman has shacked up with one, and had a baby-who was then taken away.
I would have called the police the day I found out he was living with children, and had been convicted of that.
My DD wouldn't go outside, and I would be telling the rental office I was moving and wanted my deposit back or I would announce to everyone what he was and where he lived. No way in a very hot place would I stay there, especially after that.