A little advice:
This may look like a great way to grow your new business fast. Young man, Rome was not built in one day!
Putting all your eggs in one basket is very high risk at any stage of a business. Yes being in business you have to take risks, but better to have many checks feeding you than just one.
I think you are better off working for local small businesses and grow out from there.
Government contracts are not the cream of the crock. They are not service quality based but price based. The board has the power to terminate the contract if you do not perform to the contract standards.