This is a great thread (and my second post)!
I had several of the same questions, and I'd love to see if @Jay ever actually wrote the book he outlined above.
Lots to read through and consider.
I'm in Northern VA, work in Downtown DC, and am an entrepreneur/investor interested in the profitability of permaculture -- but primarily in the quality of life it can provide for me and my community.
Looking forward to learning/contributing for fun & financial gain.
-E