The Doorman's Repose by Chris Raschka 

Some of us look up at those craggy, mysterious apartment buildings found n the posher parts of New York City and wonder what goes on inside. The Doorman’s Repose collects ten stories about 777 Garden Avenue, one of the craggiest. The first story recounts the travails of the new doorman, who excels at all his tasks except perhaps the most important one—talking baseball. Others tell of a long-forgotten room, a cupid-like elevator, and the unlikely romance of a cerebral psychologist and a jazz musician, both of whom are mice. Because the animals talk and the machinery has feelings, these are children’s stories. Otherwise they are for anyone intrigued by what happens when many people, strangers or kin, live together under one roof.