according to the website, it takes 4-6wks to process/verify transcript & gre scores and send to designated schools. i would email/call the school and ask if 12/15 deadline is for you to submit the complete application to sophas: not when sophas sends the compiled app to the school.
many schools have preliminary dates for those who are seeking financial aid. make sure you're not jeopardizing your potential to receive the max amount if sophas fails to send your application by 12/15.