Undead Uprising — Caridad Pineiro

As the heir to the alpha position of the Villalobos werewolf clan, Catalina de Villalobos has been fighting the undead for years, but in recent months, the vampires have become bolder and more organized. When the vampires dare to go on the offensive and attack the Villalobos pack members, Catalina knows that can mean only one thing: War.
Catalina is not eager to battle the undead because it will risk the lives of her pack members and for too long, she has longed for peace for her people. But the vampires daring attacks may not leave her any choice.
Complicating matters, her father has called for the Gauntlet, an ancient Villalobos rite that will pit prospective shifter suitors against each other in order to win Catalina's hand in marriage and a place as second-in-command to the very alpha Catalina.
Catalina wants only one man at her side, but the clan's human physician is forbidden to her. Instead, Catalina is faced with the prospect of being mated to one of the clan's most powerful, but untrustworthy, werewolf.