Christof was before going to Oppenhoff at Mayer Brown, where he led inter alia the German corporate practice as well as the firm’s Cologne office. He was also a member of Mayer Brown's global Partnership Board. From 1994 to 1997 he was an associate at Freshfields in Frankfurt. Christof studied law at the Universities of Cologne and Freiburg and, prior to becoming a lawyer in Germany, worked at an international law firm in London and an investment bank in Lisbon.
He is frequently lecturing in Germany and abroad on M&A and contract negotiation.