It's weird, if the hotel closed on 2/1, they're still posting on their official Facebook page as if they're open, they posted just yesterday:
https://www.facebook.com/sheratontribeca/
And the official property page at Marriott.com is still up. Usually those get pulled down as soon as a property departs:
https://www.marriott.com/hotels/trav...ew-york-hotel/