Barbara Dunlop 
Millionaire in a Stetson [EPUB ebook] 

The gorgeous Niki Gerard has the power to destroy millionaire Sawyer Layton’s family and Sawyer is out to stop her, even if it means tracking her all the way to Colorado. She’s hunting for her mother’s secret diary and, when she finds it, Sawyer has only one option: work with Niki — and try to keep his hands to himself.