The Trouble with Billionaires by Michelle Pennington

She’s sworn to never fall for another rich man.
He’s determined to change her mind.
​Charlotte Mabry moves to a small town in Alabama, full of plans for a better life, especially for her son Taylor. Cash is short, but at least she’s free from the crushing heartbreak of being married to a man who only cared about money. So even though Nate Haverton sends her pulses racing from the moment they meet, she refuses to let her heart lead her back into misery. Because he might be her son’s t-ball coach, but he’s also a billionaire.
Nate’s drive and genius for solving problems have made him insanely wealthy, but not happy. With no time for a committed relationship, he tries to fill the emptiness inside by giving back to his home town. But then Charlotte moves in, and he knows that all this time he’s been waiting for someone like her. She’s beautiful, sweet, and strong…but adamant about keeping him at arms length.
When his good intentions go wrong and rumors fly in their small southern town, this may be one problem he can’t solve—even though it’s the one that matters most.