Tranum, I liked the start of the Joe Pickett series but for whatever reason, my library doesn't have book 2 or 3 on download, only as CDs that I will have to request shipped to my location. I should check with Audible if they have it. I tried to skip that book but a major character was gone and I felt I really needed to find out what the heck happened to continue with the series.
You might be interested in the Mike Bowditch series by Paul Doiron, about a Maine Game Warden.
https://us.macmillan.com/series/mikebowditchmysteries/