Suite Scarlett by Maureen Johnson
Her new summer job comes with baggage! Scarlett Martin has grown up in a most unusual way. Her family owns the Hopewell, a small hotel in the heart of New York City, and Scarlett lives there with her four siblings - Spencer, Lola and Marlene. When each of the Martins turns fifteen, they are expected to take over the care of a suite in the once elegant, now shabby Art Deco hotel. For Scarlett's fifteenth birthday, she gets both a room called the Empire Suite, and a permanent guest called Mrs Amberson.