With more than 7,500 cases performed in 2014 and around 3,000 clients, the independent financial advisor has become the darling of BoDs, private equity and law firms. Now ranking 3rd in global fairness opinion providers and U.S. middle market M&A advisory, Duff & Phelps tops the charts for delivering tailored models as a relevant positioning in valuation and corporate advisory. We tried to understand how the firm has converted its specific corporate culture into a powerful selling point.