Front Desk by Kelly Yang

Recent immigrants from China and desperate for work and money, ten-year-old Mia Tang's parents take a job managing a rundown motel in Southern California, even though the owner, Mr. Yao is a nasty skinflint who exploits them; while her mother (who was an engineer in China) does the cleaning, Mia works the front desk and tries to cope with demanding customers and other recent immigrants--not to mention being only one of two Chinese in her fifth grade class, the other being Mr. Yao's son, Jason.