Keeper's Kin Series by Beth Alvarez

Death should have been the end. The last thing Joshua Rook expected was to wake up after the car crash that claimed his life. Never mind waking to discover he’s part of an underground organization devoted to aiding the undead. A second chance to live his life and marry the girl of his dreams sounds like a miracle, but once Josh swears the Keeper’s Oath, he’ll be cut off from interaction with the mortal world—forever. But Josh’s circumstance is special... moreDeath should have been the end. The last thing Joshua Rook expected was to wake up after the car crash that claimed his life. Never mind waking to discover he’s part of an underground organization devoted to aiding the undead. A second chance to live his life and marry the girl of his dreams sounds like a miracle, but once Josh swears the Keeper’s Oath, he’ll be cut off from interaction with the mortal world—forever. But Josh’s circumstance is special. Robbed of a chance to prepare for death, the period before his swearing in offers one last chance to win Charlotte over. There’s just one catch. He only has three days. less