Restricting the mother in-law from visiting more than once a week

I would like to ask you is there a verse in the Quraan that states about privacy for example knocking as one's residence and they refuse to let you in. I know she is allowed to visit her mother and visa versa. Also what if she is defiant and has her family over all the time because it is a matter of privacy. Am I right? And he has a right to reject them no? And also is it permissible for a woman's mother to stay at her residence because according to my understanding she (mother) only has rights at her nephew's residence or her brother and it is also the responsibility of her husband. Please elaborate further.