If she was 20, single and no kids she could just pack and go, but she`s 30,married and has a child, she can`t just pack and go.
Actually she can. I didn't know you could not live in another country after you were married with children.
And also, she can stay in Brazil, she just needs to accept to earn less money. I'm sure there is a lot of clubs in Brazil that would try really hard to have her.