Not Part of the Bargain by Susan Fox

Wade had come to take her back to Texas . . . Just before his death, Joanna's father had put Wade Hollister in charge of his ranch and all his financial assets. He'd also given Wade his daughter. Joanna, an insecure, overweight seventeen-year-old, had fled. Now, three years later, Wade stood in her doorway--the epitome of the understated millionaire rancher. Joanna guessed she'd always known he'd come for her eventually. But she wasn't going to kid herself. His presence was strictly business--the only fantasies and sappy emotions involved would be her own.