Wild Lily by Cerise DeLand

Money can buy anything, can’t it? Those brash Americans—their dollars and charms work wonders. Until they learn that money can buy anything…but love.
Lily Hanniford has all the qualities an impoverished nobleman could want in a wife. She’s beautiful, educated and funny. Too bad, she’s an American with a shrewd, wily father and has a penchant for riding astride like a man. But she’s unwilling to be sold to the highest-ranking nobleman. She wants a purpose in life…other than presiding over a drafty castle and a loveless marriage bed. Then she accidentally meets a man she can’t resist.

Julian Ash, Marquess of Chelton, doesn’t need a wife. He needs luck at cards…or a way to persuade Killian Hanniford to pay more for his family’s shipping line. But Lily is charming and her wild streak appeals to Julian who has always followed the society’s rules. Now he discovers that being wild with Lily is not only fun, it’s necessary to his life. And so is she.
They struggle to throw convention to the wind. But can they be wildly happy together if they can’t heal old wounds?