OG, I know what your saying. I too have also thought about what your asking. Before I bought my tt, I read, studied and researched all available resources, from Ferrari, Lambo's, NSX, you name it I looked and learned as much as I could and though I could put my general knowledge to use and if possible make some coinage to support my habit. Like most start-ups yoiu need a plan and a market. In KC, we don't have nearly the exposure or just by the area, the $ that people can dispose of for these cars whether it be special C4S or a 95 355F1. You in CAL are in a far better position and location aka market economic demographics to start something like this. As a business owner I don't want another full time job, but I'm paid well for my knowledge and relied upon to make qualified judgements for my clients. If you have something to offer in regards to Porsche knowledge than go for it. Regulations for auto brokers that don't actually have inventory and a physical location is something you will have to research in CAL. In Missouri is doesn't require much other than registar for tax purposes and I was going to LLC myself and seek liability insurance.