The Renegade Hunter (#12) : Argeneau Vampires.
(Book)

Nicholas Argeneau was once a successful hunter who went after rogue vampires who broke the immortal law. Except no one has mentioned his name in the last fifty years, not since he turned into a rogue himself. But once a hunter, always a hunter. When Nicholas sees a bloodthirsty sucker terrifying a woman, it's second nature for him to come to her rescue. He had no idea he would also want to kiss her senseless . . . One minute Josephine Willan is taking in a breath of fresh air, and the next sharp fangs are heading straight for her neck! Luckily, a gorgeous stranger saves her life . . . and gets locked up for his troubles. Can a man who kisses so lovingly and passionately really have committed the crime he's accused of? Jo isn't so sure . . . and she's determined to prove that this renegade hunter is worth fighting for.