Illegally filed as dependent

From July of 2018 until the ends 2020 My fiancé and I resided with his brother. I was drawing disability at the time. I paid approximately $400 monthly in rent. Not counting groceries which his brother ate while we would sleep. Also not included are the multitude of items he broke into our room and stole every chance he got! Having  lied to his parents for the entirety of our residency about the fact that rent was discussed, agreed upon and paid with gratuity added. The end of summer 2020 we were blindsided with an eviction notice. It was around this time I noticed that we stopped getting mail. Upon a close inspection of the brother’s living area I found several pieces of mail from the social security department that had been hidden from me. Which in turned caused me to lose my check. I also saw that he had filed my fiancé me myself as dependents without our permission.  Which kept at least me from getting any stimulus money. Edit: my question is what is my recourse. I told the judge in the eviction case, and she ignored me. I’ve called TurboTax be the irs with no real resolution. I want him to have to pay for what he did.