Rebel Love by Michelle St. James

A brash mercenary with his own brand of justice. The determined woman his family almost destroyed.
Locke Montgomery has only one purpose — atone for a sin that has tortured him for nearly a decade.

With the hard-earned billions from the sale of his tech company, Locke created a new identity that’s perfect cover for the mercenary organization that doles out justice to those who have avoided it. He spends his off time planning new and reckless ways to test the boundaries while dreaming about the one woman who stole his heart.
The one woman who will never give him a second chance.

Elle Matheson has finally rebuilt the bookstore run by her parents before the corporation that put them out of business drove her dad to a heart attack.
Working in the little beachside shop surrounded by the smell of ink and paper, she can almost forget the pain of finding out the company that ruined her life was owned by the family of the man she loved. But when another mega-store threatens to expand across the street, Elle’s nightmare seems to be playing out all over again. Then she runs into the one man who could make the situation worse — the one responsible for the demise of her parent’s dream.

She promises herself she’ll only give him five minutes in a coffee shop, but before she knows it Locke is showing up at the store, sending her flowers, pulling her into his high-stakes, adventurous life.
And she’s falling every bit as hard as she did the first time.
But when she uncovers the terrible truth about Locke’s line of work she’s forced to admit there are only two possibilities; either Locke has never been anything but wrong for her, or some rules are meant to be broken —in life and in love.