If you're wrapping up a rehab, the calendar matters almost as much as the renovation budget. List at the wrong time and a well-executed flip can sit, chewing through carrying costs while your capital stays locked up instead of funding the next deal. List at the right time and the same house can move faster, for more money, with less negotiating leverage handed to buyers. Here's how to think about timing your exit — nationally, and with an eye on what's actually happening in S