The Farmer Has a Wife by Sienna Waters

She needed a husband. She got a wife… and a whole lot of feelings.
Eleanor Brewster is a proper English lady with a crumbling manor to prove it, and one inconvenient problem: she needs to marry to keep her family estate.
Danni Franks is a no-nonsense farmer with a newly acquired (and deeply in debt) farm, a complicated family, and precisely zero interest in aristocratic drama.
But when Danni’s tractor collides, literally, with Eleanor’s sports car, she somehow ends up engaged to a woman who considers tweed a fashion statement.
A fake marriage should solve both their problems: Eleanor keeps her home, Danni gets some much-needed stability, and neither of them has to worry about pesky things like romance. Easy, right?
Except Eleanor is alarmingly good at making Danni’s heart race, and Danni is impossibly attractive in flannel. Throw in a scheming investor, a meddling best friend, and a horse with far too many opinions, and their arrangement might just turn into the love story neither of them saw coming.