You don't need lawyers, CPA's etc etc. You don't need a banker. Just good running equipment and good vehicles.
All you need to get started is customers and insurance for yourself and your business.
If you are quitting your other job make sure you have proper health insurance.
Make sure your vehicles are properly insured for commercial use. If you have an accident, a serious claim will be denied for a truck insured for personal use.
KB in Virginia