You cannot transfer from an Arg PP account to a US bank account. Both the PP account and the bank account must be in the same country. I suggest you close your Arg account and open a US PP account. I am not even sure why being American you opened an Argentine PP account given the zillion restrictions that there are. If payment was made already, you are more or less stuck. You can either refund it and get your tenant to pay again to a US Paypal or find an exchanger that will buy your Arg Paypal balance.
Hi nikad, you're right in that the PayPal account and the bank account must always be in the same country, but there's a single exception for US bank accounts because PayPal is an American company. Thus, you can always add a US bank account regardless of where the PayPal account is based, but this is the only exception.