I’ve considered it many times. Problem is I am just starting and have no reputation yet. I also don’t have any capital to start a group like that. Law firms and non-profit orgs are surprisingly capital heavy.
I’m no expert, but it seems to me that all you’d need to do is to pick a high profile fight to pick and pick it. You’d need to promote the case (and yourself) on a shoestring at the same time, but with the internet, you should be able to do that with some creative thinking. If you plan it right, it shouldn’t need to be much more than a one man show at the start.
Instead of a business plan, I’d come up with a ‘disruption plan’ and shop it around to at least a few like-minded folks who might be able to help either with time or money.
At this stage, all it costs is the planning time. :)