The Boss (City Slickers #4)
P. Mulholland

Reliable and methodical. Calm and quietly spoken. The oldest Austin son set to inherit the role of CEO of the billion dollar investment company. But a ruthless streak runs through him. He'll stop at nothing to get what he wants.
After his wife leaves him, he sets his sights on Abigail Malone, precious daughter of mobster, Isaac(Ice) Malone. But Trent is stepping on dangerous ground. Neither Ice nor Leon want him anywhere near Abbie and to defy their wishes will only leave Trent in a vulnerable position.