In Dreams Forgotten (Golden Gate Secrets #2) by Tracie Peterson

Finding her family could cost her everything.

Judith Gladstone came to San Francisco after her parents died to find her last living relative, an aunt she never knew she had. Instead she has fallen head over heels in love with Caleb Coulter, her friend's brother. Caleb has promised to help Judith find her aunt, but she can tell he thinks of her only as a friend, and she struggles to hide her feelings whenever she is with him.

When Caleb traces Judith's aunt to the wealthy Whitley family, Judith is united with her long-lost relatives. The truths she learns about her past and her parents are shocking and overwhelming, however, and the more she gets to know her new family, the more danger she uncovers. Someone feels threatened by Judith's appearance in the Whitleys' lives, and they will do whatever it takes to get rid of her.