...Saturday night was, by all indications, the last night that the Chelsea Hotel on West 23rd Street would be open to guests, though the duration of the closing, the first in its history, was unknown. The building is to be sold for over $80 million to the developer Joseph Chetrit, though the deal had not closed as of Sunday, according to someone close to the matter, who asked not to be named because the negotiations were confidential. Extensive renovations are expected to take at least a year. The hotel’s 100 permanent residents will be allowed to stay, but they have...