Sellers advised Sirius Satellite Radio in its $13 billion merger of equals with XM Satellite Radio. He also counseled Sirius XM in the early 2009 investment transactions made by affiliates of Liberty Media Corporation. He has represented ITT Corporation in numerous important transactions since 1990; he is the lead advisor to ITT in connection with its recently announced plan to split into three independent, publicly-held companies prior to the end of 2011. He advised Marathon Acquisition Corp. in its $1 billion merger with Global Ship Lease Inc., an important container shipping company.