Caddy is the sixth lateral hire, and second from A&O, to join the practice since summer 2009. While he was an associate at A&O he joins Mayer Brown as a partner.
Fellow A&O alumnus Jacqueline Evans joined the group in October 2009 along with former Clifford Chance partner John Clark.
Caddy brings the London-based partner headcount for the leveraged finance group, which is headed by Dominic Griffiths, to 13.
The two A&O hires come after The Lawyer reported last June that Mayer Brown was in talks with large teams at both the magic circle firm and White & Case in an effort to bulk up its London corporate and finance offerings (22 June 2009).
Sean Connolly, the firm’s senior partner, said: “As previously stated, we’re fully committed to developing a leading City finance practice, complementing the skills and resource provided in the US, Europe and Asia.
“Today’s announcement marks the latest phase of our plans. The finance team in London and globally is continuing to perform strongly in these uncertain times and we very much look forward to the arrival of Neil.”