I have been using Forest Shipping and they have been great. They will handle all of the customs clearance, import duties, etc. Forest Shipping picks up my shipment from my suppliers warehouse in China and delivers it to Amazon’s warehouse without me needing to do anything, they handle it all. I would definitely suggest them!

You will have to fill out the shipment creation workflow within Amazon’s seller central. They will assign you the warehouse to send it to

Yup, either your supplier’s address or use Forest Shipping’s address. If you need Forest Shipping’s address just shoot them an email and ask