Royals by Rachel Hawkins (Royals book 1)

“Meet Daisy Winters. She’s an offbeat sixteen-year-old Floridian with mermaid-red hair; a part-time job at a bootleg Walmart, and a perfect older sister who’s nearly engaged to the Crown Prince of Scotland. Daisy has no desire to live in the spotlight, but relentless tabloid attention forces her to join Ellie at the relative seclusion of the castle across the pond. 

While the dashing young Miles has been appointed to teach Daisy the ropes of being regal, the prince’s roguish younger brother kicks up scandal wherever he goes and tries his best to take Daisy along for the ride. The crown–and the intriguing Miles–might be trying to make Daisy into a lady . . . but Daisy may just rewrite the royal rulebook to suit herself.” - taken from Goodreads.com

All that Daisy Winters is looking forward to is going to Key Con with her best friend over the summer. Her plans drastically change when her sister becomes engaged to the Crown Prince of Scotland and Daisy becomes tabloid fodder when her boyfriend sells their prom photo and gives an interview. To keep Daisy’s image in line with the Royal family, she is forced to spend her summer in Scotland. Unfortunately, her hot throb future brother-in-law has other plans. In a hilarious and sarcastic filled book, Daisy sets out to prove that she is not one for all of the royal trappings. Or is she? 

Book two in the series, Her Royal Highness, is due out on May 7, 2019.