Grace Mirchandani was kidding, obviously. Or at least being flippant. Or maybe she was serious, while cautiously presenting her comment in the veil of humor. It was an average day in 2010 on Seneca Lake, and she was out for a drive with her family, including her husband, Rohit. That’s when she saw it, and that’s when she said it. They had come across a property that was for sale. It was a house that included a large garage, a nearby barn, and an expansive lot with a lake view. “I could put a winery there,” she said. Much to…