Hi there, I am having some work done in my house to make it more open. There are stairs running across the house and I am having part of one of the walls to the stairs removed to make access for furniture going upstairs or into the living room easier as there are tight turns. My builder mentioned that one of the steels would need to go into the party wall. I am assuming these are double brick construction. There is no way we will get a party wall agreement with next door - we have had to have the police involved with the owner as he is a violent and aggressive drug dealer (stabbed somebody 7 times for asking him to stop swearing and threatening somebody on his phone loudly enough to cause the other person's family to be witnesses). Do we need a party wall agreement as if so I am going to have to rethink the whole thing?