i don't know if this will help but goalie-parents only use one e-mail address and it is on both their mp a/c's. the only "issues" i have encountered are that you have to log in via mp# and not the e-mail address as you will get a "there are multiple accounts associated with this e-mail address, please log in using your mp number" and you'll receive one e-mail from ua (promo's mp summary, etc) for each a/c so both goalie-dad and goalie-mom receive the same e-mails