ANSWER:

Your wife must stay at her parents house while you are away and not at your parents house. She’s not obliged whatsoever to stay with your parents. 

Your wife can bring their granddaughter once in a while to visit or she can leave her there for a few hours, without your wife staying there, if she doesn’t want to.

Kindly refer to the following link(s):

Currently I’m working abroad and i cannot afford to keep my family with me as i hv to settle some debts.my wife and 1 year old daughter was staying with my parents.my paraents have some issues with my wife and i asked her to stay in her house.but my parents is too attached with my daughter and wants them home,but in their mind they still dnt like my wife.i love my parents and wife. What should i do

Dealings and Attitudes with In-Laws |