Sister in law from hell

Chichifabalous • I`m 24.and I`m a mother to be and so excited to meet my baby
So my husbands sister is always around now since she moved in the same apartment building as me and all she does is complain about her boyfriend eat all my food and want to come over every day and even on my  day off when I try to sleep she doesn't work and use some of her health issues as why she can't word I really dunno what to do anymore