A.--Rachael is RIGHT, every family has one, some have two or three, but it has to stop some place and it might as well be now for you and your family.
Talk to your parents and suggest a family intervention. There will be a third party moderator and you all will be able to tell your sister how you feel. Your mom and dad are the people who must give you sister a reality check and lay down some serious guidelines. She is an adult and got herself into her present position. Unfortunately there is an innocent child involved and that’s what tugs at your mom’s heart strings. You parents have the right to “enjoy” their grandchildren without having to raise them.
Here are some suggestions:
She will be allowed to remain in her parents’ home on a "temporary" basis while she finds her own place. However she must pay rent, contribute to the household expenses and chores. Even a minmal amount will show her that your parents mean business.
Find a studio or one bedroom apartment (If she can’t afford all of her expenses and intends to sign up for public services she can apply for a housing allowance), instead of being a drain on your parents.
She will keep her job and return to work when maternity leave is over
Start looking for daycare for infants now
Keep us posted!
Blessings.......