Can I use 1 PayPal account for Multiple Pro Site domains?

Hello,

I have a couple different domains running multisite networks with Pro Sites. For each, I have a separate PayPal account with recurring payments. Each separate PayPal account is $60/mo. Is there a way for me to have just one PayPal account for multiple domains, or is this not possible because of the need for the PayPal IPN?

Thanks, Chris