Underdog by Poppy Parkes

Dogs run in Damien Jones’ blood. His family’s been operating the county’s best damn dog boarding, training, and grooming business for generations. Now Happy Hounds is in his hands — and he’s learning that it’s in trouble.
With stacks of outstanding bills, rising costs, and a new rival in town smearing Happy Hounds’ good name, Damien needs to find money, and fast.
If entering his underdog of chihuahua mix in the Annual Charity Ball dog show to try to attract new clients seems desperate . . well, that’s because it is.
Damien doesn’t expect to bring home any ribbons. But what happens when he discovers the biggest prize of all at the Ball — true love?