Love by the Reins — Cate Nolan

When David Marlow hires Willa James to give his daughter riding lessons, he's secretly hoping she can work magic. Since her mother's death, Hailey has become a tiny terror, caring about no one and nothing but winning gold medals. Ten years ago, Willa lost everything when a riding accident stole her chances of Olympic gold. In one night she lost her boyfriend, her riding dreams, and any chance of ever having a family of her own. When she takes on the challenge of training David's daughter, she has to confront her memories and learn to open herself up to life and love again. Can one not-so-angelic little girl bring a Christmas miracle and a second chance at love for David and Willa?