Faith was brought up in South Boston. She saw her father but only at a young age. Faith was looked after by her mother, who was an alcoholic, and her grandfather. As a child, she was told by her mother that her father had died, when in fact, he had gone to prison.
Faith's Watcher was Diana Dormer, a professor of folklore and mythology at Harvard University. Dormer informed Faith that there was a second Slayer in Sunnydale, California. After the vampire Kakistos kills Dormer, Faith runs away; unable to afford a ticket to Sunnydale, she goes to New York instead. She must have spent the summer running from place to place with the ultimate goal of arriving in Sunnydale, which she does in the Buffy episode "Faith, Hope & Trick."
This account is used for roleplaying purposes only. I'm not Faith Lehane or the actress that plays her, Eliza Dushku. Stop reminding me.