Hanchart Land by Becky Barker

When Shane died Susan was left with nothing but a mountain of debts and bitter memories of a marriage to a man she'd despised. Even in death, his will kept her from making things right between her and his family. Alone and broke, she had no choice but to sell the Hanchart land in order to survive.

Luke Hanchart hadn't shed a tear over his cousin's untimely demise. And he wouldn't stand by and watch a piece of his family heritage be sold to an outsider. He intended to find a way around his cousin's will even if it meant marrying his widow.
What neither of them realized was that with the simple words "I do", they were not only righting the wrongs of the past, but opening the door to a tempestuous future. Now nothing stood in the way of the passion that had smoldered between them for years.
As they sealed their union with a kiss, sparks ignited and continued to burn.