The Plan (The Billionaire Daltons #4)
Juli Hill, Jami Hill

With the help of her boss, Rob Dalton finally gets Claire Sherman to go out with him. Things are rocky at first, but they smooth out eventually.
Until he finds out her uncle is blackmailing her. If she doesn’t keep giving him money, he’ll get custody of her sister. She doesn’t want that to happen, so she keeps paying.
Now he’s hitting her up for more than she can get.
“Ask your boyfriend,” he tells her. “He’s rich.”
Claire won’t do that, but what is she going to do now?
Rob Dalton knows.
This is a happily-ever-after billionaire romance that’s exciting and fun. You won’t want to miss it.