Is it the developer’s fault that he didn’t know the neighbor was a card carrying KKK member racist?
The developer did know the neighbor was trouble. They had in fact stopped providing services to his home because he had threatened their own workers.
If the developer had no prior knowledge themselves, I’d say they would not have concealed anything. But they did. It’s like covering up and conealing physical problems with the house so a person will buy it. anywhere in the country this is illegal.