At 22 Corso Italia, the Milanese headquarters of Spada Partners, the furniture is made to measure and the walls are covered with photographs, paintings and drawings from the contemporary art collection of the owner, Roberto Spada. However, Spada Partners is not a fashion consultancy but an accountancy firm, though Spada himself is no ordinary accountant - he is the trusted adviser to the wealthiest figures in the Italian luxury sector, in particular the Prada family, for whom he holds key roles at