Have Mercy on Me by Aria Grace

Jason loves walking dogs, but he has plans to do something bigger with his life. Not big like change the world kind of big. But big enough to change at least a few lives. So when he sees an empty garden center with a fenced yard, he gets an idea. Maybe he and Jesse could set up their doggy daycare business there.
Tony owns a small clinic downtown that caters to professionals in need of a flu shot or the uninsured who have no other options. Not a lot of in-between cases. So when Harris calls in a favor for a cute boy with a cut that he’d been ignoring for too long, he’s excited for the change. This kid has a smart mouth and a sassy attitude, but Tony can tell that he just needs a Daddy to give him some boundaries without breaking his spirit.

The attraction is instant, but the willingness to accept what is right in front of them takes a bit longer.