Company of Thieves by Gil Roscoe

Ex-grifter Warren Allison has it all. A legit job, cash in the bank, and a loving girlfriend. He is determined to live the straight life, but then a shady woman from his past offers him the con of a lifetime. Warren is about to learn, the hard way, that in the international, high-stakes game of greed and lies, the winner takes all, the losers get taken, and no one is who they appear to be...including Warren himself.