Board Thread:Speculation House/@comment-4830106-20140806180925/@comment-10390252-20140817135914

Shadow, think back to The Shining Beacon. Blake explicity states that Weiss is the heir to the SDC. This isn't something up for debate; it's an in-universe fact. Weiss's father can change that, of course. Nonetheless, it looks like that the family still controls who owns the company and that Weiss has been publicly named as his heir.