What is the ruling regarding a wife remaining in her in-laws' home despite her discomfort and demand to move to an independent dwelling, and the husband's refusal of that?

It is the wife's right upon her husband that he provide her with a suitable, independent dwelling that no one from his family shares with her. He does not have the right to compel her to live with them. She is not obligated to serve her husband's family unless she volunteers to do so. The wife should discuss this matter with her husband.