Ghost of a Chance by McKenna Dean

At sixteen, Sarah Atwell walked away from her love of horses and a promising career as a competitive rider after discovering she’d inherited the family curse. Years later, her grandmother stunned everyone by leaving Sarah her horse farm—worth millions—but with conditions Sarah might not be able to meet.

A former Redclaw agent, Casey Barnes retired when a security assignment went bad, killing his partner and leaving him as a partial amputee. His inner wolf is in hiding. He’s been living quietly as a horse trainer, but June Atwell’s death now pits him against her granddaughter for rights to the stable.

With both of them snowed in at the farm, a series of increasingly serious accidents draws Sarah and Casey closer together, but they each harbor secrets that might tear them apart.