Hiring a private tour guide in Milan
A private guide in Milan costs from €60 ($68) for a few hours on a set itinerary, or around €540 ($610) per group for a full, eight-hour day of your choice with a professor or PhD candidate.
That's actually not too expensive if you think about it—just €67.50 ($76) per hour. Or to put it another way, a family of four would be paying €135 ($153) each for a full day with a guide.
Here are some companies through which you can book a licensed guide in Milan: