The Sheriff's Promise (Thunder Ridge #2)
Renee Ryan

He's looking for help.
And she has the perfect arrangement...
Overworked and overwhelmed, all Sheriff Wyatt Holcomb wants is to be the best guardian to his seven-year-old nephew--and dealing with a runaway alpaca and the animal's frustrating owner isn't helping. Then veterinarian Remy Evans offers a solution for them both. She'll watch his rambunctious nephew, Samson, this summer if he'll fast-track her permit application for a petting zoo. But this temporary solution might just be their chance at forever...
From Harlequin Love Inspired: Uplifting stories of faith, forgiveness and hope.
Thunder Ridge
Book 1: Surprise Christmas Family
Book 2: The Sheriff's Promise