By Diane Rommel This is Concierge Confidential, a series in which we learn about a city’s best-kept secrets from people who specialize in exactly that: long-serving concierges from the best hotels in town. No one knows a city like the concierge at its most in-demand hotel — which is exactly why we asked the Four Seasons DC’s Michael Chase to tell us what’s up. Consider this a comprehensive to-do list for the months to come, whether you’re in town for the cherry blossoms or there for good. What’s an underutilized part of your hotel?Not everyone realizes we have a swimming pool. Located in The S…
