Daddy's Naughty Little Girl. Daddy Series, #7

Sienna runs from the neighborhood she's grown up in because of a threat she considers worse than death. She was raised by a drug-addicted mother, and it was only when her mother died that Sienna was able to flee. She goes to the only person she knows who'll help her make a new life. Kane owns part of a security business and has dedicated himself to building the company. He has no time for relationships.
Besides, the kind of woman he wants is few and far between. When he's pulled into Sienna's life, he knows she's the one he's been waiting for. Now he just has to keep her safe from the person who wants to take her away from him.