Bloodline by Sidney Sheldon

Bloodline is one of the best of Sheldon's blockbuster thrillers. Roffe and Sons is a family firm, an international empire filled with desperate, cash-hungry family members. At its head was one of the wealthiest men in the world—a man who has just died in a mysterious accident and left his daughter, Elizabeth, in control of the company. Now as this intelligent, tough, and gorgeous woman dares to save—not sell—Roffe and Sons, she will have to outwit those who secretly want her power . . . and the unknown assassin who wants her life. Bloodline is a sweeping novel of high financial intrigue on three continents, love, murder, danger, and suspense.