Chantilly's Cowboy (Sisters of McDougal Ranch #1)
Debra Kayn

Jack Grady can understand Tilly's frustrations over working with him, but he needs the job to put his nephew through law school. Besides, he's made a promise to Stuart, and everyone knows a cowboy never goes back on his word. But when he finds himself falling for the boss's daughter, Jack is torn between being honest with Tilly, and keeping her father's secret.
35,000 words