Look into taking a class at your local community collage. Out here they are always running classes on how to start your own business. They go into all the business stuff like taxes, permits, how much $ to have in the bank before you start, then on into advertizing, how to hold an opening etc etc etc.
Also check with your local governments to see if they have anything on how to do this. My state has a packet they will send out the explains all the local taxes you are responsiable for. Sometimes you can get such information from Chambers of Commerce and or banks. Check all their websites.
The most important thing to remember is that you have to follow the rules that apply in your community, the ones in mine are most likely quite different so do not apply to you back there. You are going to have quite a time explaining to the tax auditer that the reason you did not pay a Philly tax was because someone located in another state said they did not have to pay that so you thought you didn't have to either.....
So be careful, there are sharks and shoals to sail thru, but it can be done and you can have a long and succesful trip.
Bon Voyage
Mike