Jerry Paffendorf is a legendary Michigan entrepreneur who is a friend of mine. He's cofounder of Regrid, a mapping software company used by governments and rea

Jerry Paffendorf is a legendary Michigan entrepreneur who is a friend of mine. He's cofounder of Regrid, a mapping software company used by governments and real estate developers. Jerry as long as I've known him has been obsessed with land. I remember when he bought a Detroit lot and sold off one inch squares on the net so you could buy a piece of Detroit as it was undergoing bankruptcy. He also created software that allowed volunteers to take a survey using tablets to find out the status of every building in the city. Was it occupied, was it secure or was it open to the elements? Cause Detroit's leaders at the time had no real idea.