Given to the Prez (Chaos Monsters MC Book 2) by Sam Crescent

Maeve Summers wants the one thing money and success can't buy—a family of her own. Doc can't stop thinking about Maeve. What starts as an unexpected match arranged by his ex-wife soon becomes an irresistible attraction neither of them can deny. Their secret romance is everything Maeve has ever wanted—until danger threatens to destroy it. When someone targets the people closest to them, Doc must fight to protect his daughter, his ex-wife, and the woman he's fallen for. With time running out and everything on the line, will love be enough to save them all?