domain mortgageprepay.com

I could certainly find a way to love "pay mortgage" or "mortgage pay". The prepay idea, I don't like so much ...in my little opinion

Hope you get an offer

Yeah, the whole ''pre'' thing is simply not correct (although popular) - try to avoid it in domains.
And ''prepay mortgage'' in particular just doesn't make much sense - ''pay mortgage''.
But good luck, though!

Prepaying early often comes with penalty.

And isnt it backwards?