Hello. The answer is 'it depends'. There are a multitude of considerations when a business is to be global. The sort of attorney assistance you are seeking is known as business formation. If this business shall begin as a small business, some attorneys focus on small businesses. All the best.
In addition to Tricia's excellent answer, you will start your business the same for a local, national or international business--by forming a business entity in the state of your choice. From that first step you will be on the path to international business. Do find a competent business attorney with international experience.
Disclaimer: My answer is provided without all relevant facts, let alone your unique objectives. No attorney-client relationship is hereby created as a consequence and you should not take (or not take) any action based on my answer. I highly recommend that you consult with competent legal counsel before deciding to take or not take any action, as every situation is more complex than it appears.
There are many variables among which the interaction of local laws, foreign laws and international laws. Corporate, contract, tax, accounting, trade, customs and cross border issues need to be considered and/or planned carefully. Best
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