MacKade Brothers: Devin & Shane by Nora Roberts (2009)

Here's one I missed recording. Two short reprint novel from 1996 - The Heart of Devin MacKade and The Fall of Shane MacKade. The usual brother (or sister) set-up. The setting is small town Maryland. Devin is the sheriff and his heart is set on Cassie, who married the wrong guy out of high school and has two kids. Devin saves the day. Shane, a womanizer, falls for a PhD who is researching the mystical phenomenon of the area. Again, a combination of magic and romance. There are more brothers, so I am sure there stories are out there to find.