MILAN (Reuters) – BPER Banca has kicked off a process to potentially sell its debt collection business as its new Chief Executive Piero Montani works on a new business plan for the Italian bank, four sources close to the matter said. BPER is the last of Italy’s large banks to have maintained full ownership of its debt servicing operations, and the disposal would bring onto the market a coveted asset. Two of the sources said the process had drawn strong interest and a large number of players planned to access the data room to study the business’s financial figures. Leading Italian banks includi…