I don't mean to rain on your parade, but I see two problems with your venture. First, consulting is usually performed by someone with a great amount of experience. Second, I don't know why people would hire a consultant when they could consult with ECs who will perform the work.
I should qualify this by stating that there are plenty of services that I'd never use and are doing much better business than me.
As for the legalities, contact a lawyer or AHJ.
Dave
