So, it's clear that Bella doesn't care about her law firm. Bella doesn't even care about his threat of not getting any inheritance if he dies. Therefore, there is only one person who can be asked to prevent the breakup from happening: Carter Wilford himself.
Indeed, there is no one other than Carter who can carry on the law firm in the future. The Ross and Partners law firm had 350 lawyers with various specializations. The firm is particularly renowned for being the best in immigration and tax law. For immigration, its lawyers speak 20 different languages. They also have specialized units for South American, Chinese, Korean and Japanese clients.