Following a year-long multimillion-dollar renovation project, Salamander Washington, D.C., formerly the Mandarin Oriental Washington, D.C., has witnessed a remarkable transformation. The property now features upgraded guest rooms, stunning communal spaces, and a soon-to-be-unveiled luxurious two-story spa and sensational restaurant. Under the stewardship of Salamander Collection Founder and CEO Sheila Johnson, who took over the property…