Simply Lies – David Baldacci

From the #1 New York Times bestselling author of The 6:20 Man comes a twisting new psychological thriller in which two women—one a former detective, the other a dangerous con artist—go head-to-head in an electrifying game of cat and mouse.
Mickey Gibson, single mother and former detective, leads a hectic life similar to that of many moms: juggling the demands of her two small children with the tasks of her job working remotely for ProEye, a global investigation company that hunts down wealthy tax and credit cheats.