The drow in charge of organizing finaces and purchases and trading for the House. It is recognized as a vital position but nevertheless it is not very sought after since it is often thankless and difficult to balance the demands of the Nobles of the House and keep them from spending themselves into financial oblivion.
For a Commoner this is nevertheless one of the best postions to be found in a house and for a Noble it is either seen as a punishment or a relaxing job far away from the others who consider themselves to good for trade and mercantile endeavours. It also gives some influence and possibilities for favouritism among the MerchantHouses, and a Procurator is often also the boss of a dependent merchant house.