Well, you should not have any limits to how much you can receive with a Premier account. However with that said, if you do receive huge amount of funds out of the blue, they may get suspicious. So as long as you keep documentations such as Invoice, Proof of Delivery by the Postal Services and so on, you should do fine. Also make it a point to only accept payments from verified accounts to prevent any issues in the future. If you receive payments from suspicious sources or for suspicious activities, it can be an issue. As long as you are operating above-board and you take note of Paypal's Terms and Conditions and Acceptable Usage Policy, you do fine. Just make sure you have all the documentations for the sales. Best to use the Buy Now or Invoicing System in Paypal rather than the Send Money option.
No, there arent any limits on the funds received by Premier PayPal accounts. But some countries are not allowed to receive funds. So, if you're from such country(also known as Send Only), you wont be receieve any penny in your account.