Squire Patton Boggs has expanded its Global Corporate Practice in London, adding significantly to its international private equity (PE) team, with the appointment of former KPMG heavyweight Stephen Ball, and leading PE practitioners Charles Leeming and Ben Squires from Simpson Thacher.  All three join as partners and will work closely with Corporate and Financial Services colleagues across the firm, in the UK and Europe, the US, Middle East and Asia-Pacific.