most areas (in the USA at least) have Small business association or downtown development, enterprise support centers or the like. You might get good information from other similar organizations in other localities. Also contact your state agencies that license and certify businesses and organizations (designations for tax purpose would be various depending on how you set up your business- not for profit, etc) you will want to check for zoning requirements (you probably couldn't do it in your home, for example) so check also with entities like chamber of commerce if your location has one, and also check with your city or county to see what regulations or zoning/variance/permits are required . You might consider getting a business lawyer to draw up official charter, etc. they could also guide you about what else is needed for your specific situation from a legal standpoint.