Rancher Bodyguard by Carla Cassidy

Fiercely independent, determined, driven and betrayed. Grace Covington vowed never again to lay eyes on the arrogant, hotshot defense attorney who'd broken her heart. But everything changed when her stepfather was murdered, her sister found holding the bloody knife. Charlie Black was the only one who could help.

Accepting the case would shatter the simple life Charlie established after taking charge of the family ranch in Cotter Creek, but he couldn't deny Grace's pleas. Discovering who was bent on destroying the Covington clan might be the only way to prove he was a changed man capable of protecting her body and soul.