san francisco the small family office that is managing the wealth of the worlds richest person and is helping put together the largestever acquisition to be carried out by one person is shrouded in secrecyon monday musk clinched a deal to buy twitter inc for 44 billion in a seminal moment for one of the worlds most influential public forumsmusk who is also the chief executive of electric car maker tesla inc and aerospace company spacex revealed in a regulatory filing last week that the social media company should reach out to its family office as a point of contact regarding his proposed acquisitionyet little is known about the austin texasbased family office that manages musks assets the office is called excession and the man who helped build it is jared birchall a former morgan stanley banker who has advised musk on his interactions with wall street for several years according to regulatory filings and legal documents he also hired an investigator to probe a musk critic that musk called pedo guy back in 2018 according to court documentsborn in 1974 birchall was hired by musk from morgan stanley in 2016 to work for his family office birchall is also the chief executive of musks brain chip firm neuralink a director at musks tunneling firm the boring company and a board member at musks philanthropic private foundationbusiness registration records with the texas comptroller of public accounts list birchall as the manager of excession as recently as 2021birchall and musk did not respond to requests for commentbirchalls multiple roles are uncommon for a family office manager and illustrate musks faith in him said raphael amit a management professor at the wharton schoolonce you appoint somebody to run the family office that means that you trust him and elon wants to set it up in a way that allows him birchall maximum controlmorgan stanley as best resourcemorgan stanley led the financing package for musks bid for twitter and advised musk on the successful deal culminating several years of relationships the two have built and bolstered by birchalla day after musk tweeted in august 2018 that goldman sachs and silver lake would manage his ultimately failed effort to take tesla private birchall messaged musk to encourage a morgan stanley roletheyve been our best resource on the personal side by far they provide you with the largest 350m of all the lines and each time we have pressed them for more borrow power or a lower rate theyve come through he wrote according to documents disclosed during a trial over tweets by musk that he was considering taking tesla privatemusk responded that seems fairno regulatory scrutinyexcession is also the title of a sciencefiction novel by iain m banks about artificial intelligence that musk was seen carrying at a sun valley idaho conference in 2015excession the company was staffed by essentially two people in 2019 musk said in a defamation trial at a federal court in los angeles at the time the second