While the Blood King lives, no one is safe. Sybille Esmond never wanted to inherit her family's weird business: summoning spirits of the undead and guiding them to the afterlife. Then tall, dark, and undead Elis Tanner, a reformed member of the soulless ever-after, invades Sybille's life.
Dark-Hunter series by Sherrilyn Kenyon
Sookie Stackhouse series by Charlaine Harris
Blood and Magic by Melissa Sercia.