When Michael Frommer, 58, and Susan Shure, 56, bought a Victorian three-flat in Bucktown, they were already serial renovators, having lived in and rehabbed numerous residences across the city. But their latest home is by far their most expansive project — as well as part of a new career direction for them as developers. They plan to build, live in and then sell a series of innovative living spaces. "They will all be high-end, custom, cool places to live," says Mr. Frommer, who has also worked in advertising.  Crain's Chicago Business