I am not quite sure but it’s safe to assume a lot. When mafiosi die, a lot of those businesses and rackets don’t stay with their estate though. I believe the family has to live off the cash that they were left with as well as legitimate businesses that the mob family lets them keep. Idk what the case was for Salerno but I’m sure his family was completely fine after he passed. Smart business mind. Meyer lansky for example, died with very little money according to his family. Contrary to what many believe about Lansky, I don’t think he was ever close to being a billionaire at any point.