Love You to Death by Meg Cabot
Being a mediator doesn't exactly make Susannah Simon your typical sixteen-year-old. Her job is to ease the path for the unhappy dead to their final resting place. Not all ghouls want to be guided, but Suze is inclined to kick some serious ghost butt if she has to. Now she's moved to California with her new stepfamily and is starting out at a brand-new school. From her first day, her mediator skills are tested to the max when Suze finds herself the target of the murderous spirit of ex-class beauty, Heather. At least she's sharing her new bedroom with Jesse, who just happens to be the hottest ghost in history. Suze is totally warm for his form and is determined to win the heart of the sexiest spirit in town. But can this girl get her ghost?