Cop's Second Chance by Sharon Hartley

His mission is everything - until he meets her...

After losing his brother to gang violence, Miami cop Sean O'Malley goes undercover determined to stop gang recruitment in the area. But his black-and-white views are shaken when he meets Aleta Porter, a beautiful social worker with a less than pristine past.

Working closely with Aleta is the kind of distraction Sean doesn't need. But when a threat from Aleta's past reemerges, Sean will have to decide what comes first: his duty...or his heart.