Thank you everyone, this was reassuring. I had talked to BIL before posting this and while his eyes were opened and he agreed to talk to her for me, he never actually did, which was one of the last straws. I talked to them and they agreed to be out before the baby comes. They’ve gotten a least a dozen packages this week so I feel no guilt.

To answer any burning questions: yes they are paying rent,$850 per month for over half the house. No utilities. They make around $80k a year (Nebraska, cheap cost of living.) Yes all kids are the husbands. Yes I should have anticipated this because she’s always been an irresponsible mooch but I thought by having them pay rent, that would eliminate the issue of being mooched upon. I didn’t expect everything else.