It turns out that last night, Robertson mobilized his network of connections and quickly found out that Hattori Shin'yu had been injured by the Dragon Maiden. Therefore, Robertson personally called the hotel owner, asking him to no longer accommodate the Dragon Maiden and her companions.
Robertson's influence in Las Vegas is significant, with both the underworld and legitimate businesses at his disposal, and it's said he even has some relations with America's meta-human organization "Statue of Liberty".
Regarding Robertson's words, the hotel owner dared not disobey, so they kicked out the Dragon Maiden and her companions from the hotel.
"If this place won't keep us, there are plenty of others that will! Let's just move to another hotel!"
They were staying perfectly fine when they were suddenly evicted, leaving Fang Bai and the others somewhat disgruntled. So, they promptly moved to another hotel.