MGM is partnering with Live Nation for entertainment at the 3,000-seat Theater at MGM National Harbor, which will include VIP suites and reconfigurable seating arrangements. The property’s 125,000-square-foot casino will feature poker, table games and more than 3,300 slot machines. “After years of planning, designing and developing, we are thrilled that the moment is almost upon us to share this very special resort with the community and visitors from around the world,” MGM National Harbor President Lorenzo Creighton said in a statement announcing the opening date. 10 and beyond with room rates starting at $399 a night and suites, $599. The company has begun taking reservations on its website and by phone for Dec. MGM National Harbor, the $1.4 billion, 308-room resort built by MGM Resorts International on the banks of the Potomac River in Maryland just outside Washington, D.C., will open its doors Dec. Subject to winning a gaming license from the state of Maryland, MGM Resorts International is proposing to build an $800 million destination resort in Prince George's County outside the nation's capital. In this artist's rendering, the proposed MGM National Harbor is seen from the adjoining highway that rings Washington DC.