The Vulture Fund by Stephen W. Frey

Supervising a multi-billion dollar real estate investment fund, a savvy Wall Street investment banker soon discovers through the research of a beautiful graduate student that there's more to this deal than meets the eye. Now he finds himself drawn into a treacherous web of international terrorism and deadly Washington politics -- and with billions of dollars up for grabs and his very life at stake, not even his best friends and closest colleagues can be trusted!