By Maria Ward-Brennan Almost every London lawyer has heard of Neil Gerrard. The former head of white collar crime at law firm Dechert was a heavy hitter in the City, handling some of the biggest corporate financial crime cases, including acting for Airbus while it was being investigated by the Serious Fraud Office (SFO) for paying bribes around the world. But this isn’t what he is now known for. His role in investigating other high-profile corporate corruption cases has seen him, and his firm, become the subject of multiple lawsuits. Gerrard is under investigation by the Solicitors Regulation …