I am an atheist in Canada. I know something about law.
"Brian Green Adams" is a pseudonym, taken from Brian Eno, Robert Green Ingersol, and Douglas Adams. Three of my favourite atheists. Not to mention The Life of Brian, Brian Green (physicist), Eno's "Another Green World", and Adam from Genesis in the Bible.
The connection to Brian Adams is an unfortunate coincidence, though I was very fond of him when I was 12.