My cousin has 3 children, a 15 yr old girl, a 8 yr old boy and a 5 month old. She lives with her husband in a 2 bedroom apartment. The 15 yr old shares her bedroom with her 8 yr old brother, while the baby shares a room with his parents. Is it legal to put the boy and girl (with such a huge age difference) in the same room? Is it even legal to have a 2 bedroom that houses 5 people in the state of Wisconsin?