Came across this forum thread:
https://www.nopcommerce.com/boards/t/55630/shipping-to-address-restrictions.aspx
Would be nice to have this functionality built into nopCommerce. We deal with this on a regular basis where a single customer (typically B2B) has multiple ship-to addresses. In some situations they may even have multiple bill-to addresses (though less frequent).
Wonder what others think about multiple ship-to addresses for a customer or allow them the ability to set it up. Same would apply to billing. That way when they go to purchase, they can select the location for shipment and/or billing.