This is a duplicate question. I don't think you have grounds for a lawsuit but feel free to reach out to some local lawyers for their opinion.

The lease is a contract between you two and the landlord, so you cannot have her removed from it.

You will spend tens of thousands of dollars, and it will take years.

Quite simply, you should not do any of this without a lawyer. The stakes are too high.

I don't think you do anything. They were doing their job.

If the cops came to your house sounds like you are already "in trouble."

IMO you have no grounds for a lawsuit under these facts.

It may be, but they likely don't have any money to sue for, and you are not his wife so you can't sue.

I agree. Don't shop there anymore. ........................

Has it occurred to you that this might be a scam? Just be careful.