Business Issues: Do I Need a License/Permit to Sell on Amazon if I´m Not American

My question involves business law in the state of: Florida
Hi, I am a Swedish citizen but I have a LLC registered in Florida. Since I only have a tourist visa (B), I am not allowed to do anything with my business when I'm in the USA so I will need to handle everything from Sweden. My plan is to send items to Amazon and let them handle all the selling and shipment for me with their (Fulfillment by Amazon) FBA system. My question is, what do I need in terms of permits, licenses and/or insurance? E.g do I need a sales tax permit and/or business permit?
Thank you

Business Issues: Do I Need a License/Permit to Sell on Amazon if I´m Not American