San Francisco Series by Mary Potter

"Say it Nika, say you want me."Annika Koslov wanted more than just to find her father’s killer. She wanted the sexy new bodyguard too.He was on a mission to find his partner’s killer, the leader of the Romanov Cartel. It didn’t matter to him what he had to do to find out, because he had a perfect plan…. Marry the heiress.She was the most beautiful woman he had ever seen and Chase finds himself fiercely attracted to the woman that was supposed to be his assignment.