@Ramon Polo You call these lists "high quality" motivated seller leads, but also claim "most of these leads haven't showed interest in selling YET" - not showing interest in selling yet, by my definition, is not a motivated seller, much less a "high quality" motivated seller.Feel free to DM me. 

No prior owners can claim rights after a tax sale, all previous title rights are extinguished.

They actually signed affidavits with the bank's attorney releasing their claim to the property.

The judge would not even look at the documents and said the documents won't change anything since they claim equitable interest.

The seller should give you an inventory list of everything and in due diligence of the asset you verify everything.If at closing the Seller takes everything you have a legal claim since the items were identified in the executed PSA.

Claiming profits shows income.

@Tony CastronovoMy guess is that you would lose in small claims court. 

well it is insurance after all they are in business to make money not pay on claims.  

well it's considered owner occupied, I never claimed it as a rental.

@Benjamin CowlesYeah, you have to decide what makes sense for them to repair vs. what makes sense for you to repair.If they are on the hook for things they might break or clog up then you won't be getting calls at 2AM for minor stuff.However, if you show up to the house one day and they've installed new flooring or other items they can't take with them when they leave (this happened to my folks years back on a rental), then they might try to claim they added value to the property and have something at stake.