Is there any way to ask for the $45 fee per app waived?

Timmy Is an Avg Kid that No One Understands

If so, can you ask after your app has been submitted?

captainwoofs-1-1-1

If you're asking for a fee waiver, you need to do so before your app is submitted. As far as I know, schools don't refund any application fees you have already paid. I would email whatever school you're applying to and ask if they waive the CAS fee.