jamesonnnnnnnnI'm not qualified or skilled enough to help, but I'll give you as much info as I can figure out. I believe he's just playing C Am E7 for the verses, he changes at the line "You can buy me a collar and tell me to stay" and "You can tell me to go and tell me I'm wrong" but I'm not sure what he's playing there. He's using a fairly simple travis-picking pattern, sometimes he's only playing the alternating bass notes with his thumb. At the end of each line in the verses he's playing the E7 chord and using his pinky on the third fret of the 5th string. I hope that helps you get started at least, it's not much but that's all that I was able to figure out with any degree of confidence.