Small Foreign Businesses considering doing business in the United States are well advised to seek legal counsel in smaller law firms, since large law firms don’t really want or need their business. However, there is no reason why you shouldn’t use big firm resources, such as this great guide:
Courtesy of Thelen Reid & Priest LLP.

The way of business is USA is very different from most part of the world, with American business, customer service is always a part of the business and for most outside small business you can run your business with very litter capital but not in USA because bills will eat up your capital. verify before starting or moving your successful business to USA.