The Shipping Heiress by Lisa Higgins

Jade Fulton, the only child of the recently deceased New York shipping magnate, leaves everything she loves and moves with her mother to England. New York is all she knows, and at one and twenty, Jade is unmarried and abhors Society and its strict rules. Her carefree lifestyle changes, but Jade is determined to marry for love or remain a wealthy spinster. Being the niece of a duke does not matter to Jade, as she tears through London with her strange fashion, fiery red hair, and hoydenish attitude. She is the talk of the Haute Ton, and none of it is good.
An unexpected encounter with a known rake, the Earl of Lichfield turns Jade’s life upside down. He’s a wickedly handsome rogue who gives not a whit for the beau-monde or their wagging tongues. His dark, brooding good looks have been known to make the most proper lady swoon.
Things only get worse for Jade, when an old threat from New York shows up in London, hell-bent on making Jade his wife. What will happen when these lives collide?