In laws issues / brainwashing my husband to separate me from my parents

Hello mam/sir. I am a single daughter/ child of my parents . Before marrying we made it very clear to my in-laws and my husband that as my parents are pension holder they don't need any financial help but lifelong they will stay with me as being only child my parents can't stay away from me . And we are against if any dowry..and there is not question of it because me being only child eveything belongs to me is obviously my husband's My parents have always given us all privacy in every way. After 3 years of my marriage my brother in law stays in the US is brainwashing my husband to force me to make my parents out of house keeping false allegations that my parents are not giving us privacy.... Bro In law created a huge fight in a happy family and within my husband andy parents and asking me to move away from my own house to wherever my husband takes me ( I bought my own house before marriage and we ( my parents , me and hubby) stay there only since 2017). My hubby is very soft spoken gem of a person is now telling my parents and saying they have never given him anything and asking them to leave home . I am afraid that all this anger is fed In hubby's mind my my bro in law and mother in law because they didnt get any dowry. Now they kept a condition saying either my parents should leave home or he will never return back. And he left to Hyderabad few days back and not in touch with me ... Please suggest something