First, you will want to know if there is a tax treaty with the U.S. and your home country. You will want to know if your new LLC is engaged in a U.S. business or has a permanent establishment. You will also want support with figuring out which state is best for your LLC and business before formation. Once you are clear on the federal and sales tax consequences you are ready to form your LLC. You will want a registered agent that works with foreign clients and has the resources to keep you on track with U.S. taxation. You will want to make sure you have a complete LLC formation, which includes the correct LLC management structure, operating agreement, minutes and resolutions, membership certificates, virtual address, EIN, and that the taxation structure is correct.