Unlikely Hero by Josephine Beintema

Molson Colborne has always grown up with people looking down on him. He’s made life choices that his family do not approve of, but he’s never let that bother him before, preferring to weather it all with a fine sense of sarcastic humor. Now, he’s serious about helping his half-brother Michael after he feels responsible for Michael’s imprisonment.
Holly Urshman has always done things by the book. She doesn’t have so much as a parking ticket to her name. When a client of hers has their life threatened, she vows to get to the bottom of what happened.
It’s an unlikely pairing that neither of them wanted or expected, yet once they put their heads together to help the Ramesly family they find they work well as a team in more ways than one.