How do you convince someone to spend $3M to live in a tower that carries the branding of legendary DJ Kygo's Palm Tree Crew? It starts with a turntable in a one-story building on a patch of asphalt. The 22K SF property in Downtown Miami is the sales center for a handful of projects being developed by Property Markets Group, one of the most active developers in the nation's hottest market for new luxury condos.  As dozens of these projects rise across South Florida — many adorned with luxury and exotic brands from St. Regis and Four Seasons to Dolce & Gabbana, Aston Martin and Frida...