You might find the posts at the links below helpful.
Disclaimer: This post does not constitute legal advice and does not establish an attorney-client relationship.
In order to form an llc under the laws of any state of the U.S.A., you generally must designate in the Certificate of Formation or Articles of Organization (i.e., the charter filed with the Department of State of that state) a principal place of business and a registered office and agent for service of legal process on the llc. Unlike filing an election for the entity to be taxed as an S corporation for federal income tax purposes, a non-resident, non-citizen generally may be a member of an llc unless the llc is engaged in a business for which regulations restrict ownership to U.S.A. citizens and registered residents. Nevada llc and tax laws provide some incentives to forming llcs in that state that are not offered by other states. You should consult with an attorney licensed to practice in the state in which the llc maintains its principal place of business or in which the llc will be formed.