Sending rec letters after application is submitted?

I have my Georgetown application all set and ready to submit, but I’m still waiting on my “Teacher 1” to submit their letter of recommendation. If I submit my application now, can my teacher still send their letter up until the deadline? Or will it not be counted if it’s sent after my application?

I’m struggling with the same thing! From what I have seen in different forums and on the Common App website is that you can still submit your application even if the letters of rec aren’t there but Teacher 1 has to send it before Georgetown’s deadline. So it wouldn’t hurt to ask them again.