Slow Heat in Heaven - Sandra Brown

Grappling with hidden family secrets, forbidden passions, and a business in peril, the adopted daughter of a Louisiana mogul must confront the past to bring peace back to her hometown.
The adopted daughter of the most powerful man in town, Schyler Crandall was a brokenhearted girl when she left Heaven, Louisiana. Now a crisis has brought her home to a family in conflict, a logging empire on the brink of disaster, and seething secrets that make Heaven hotter than hell.
Everyone in Heaven has a secret: Schyler's beautiful younger sister, Tricia, with her cruel lies; Ken, Tricia's handsome husband, who married the wrong sister; Jigger, the pimp and ruffian with plans of his own; and Cash, a proud, mysterious, and complex bad boy with a wild reputation. It is dangerous for Schyler to even be near him, yet she must dare to confront the past - if there is to be any peace in Heaven.