Promising Reunion by Danielle Stewart

Loch O’Malley takes his job as the youngest brother seriously. The screwup. The wild one. He’s reliably unreliable. So when his brother Brian asks for a serious favor, Loch knows it must be something big.
Nora Munson has the weight of the world on her shoulders. She’s the strong one. Picking up all the burdens her family has left behind, and shouldering them no matter what comes her way. When her sister Carmen abandoned them all years ago, Nora assumed it was a selfish streak that sent her running.
When Loch tracks down Nora, he finds she is a woman cracking under the pressure of a failing family farm. Left to fend for herself, Loch decides to do what he can to help Nora out. He was sent to find her, spy on her, and report back. Falling for her was not part of the plan. His loyalty to his family is tested when his attraction to Nora grows. He’ll have to decide if keeping up the act is worth the risk of breaking her heart. Family loyalty goes head to head with new love, as Nora and Loch collide.