ANSWER:
This is your right in Islam but I don’t know whether your husband will be able to do that. You need to totally ignore her verbal abuse as if she doesn’t exist! She unconsciously lives on making you stressed out and saying bad things or being impolite. If you manage to control yourself, never defend yourself, never argue and never reply to any of her comments, you will turn the table on her and she will feel silly for failing to make you respond or react negatively. Simply give her a smile whenever she talks trash at you and give her deaf ears.
https://www.assimalhakeem.net/y-all-the-scholars-recommend-husband-and-wife-to-stay-in-a-separate-home-iey-staying-with-the-inlaws-in-the-same-house-is-not-recommended-is-the-wife-allowed-to-ask-her-husband-to-take-her-alone-even/