Mortgage transfer. You aren’t getting a NEW mortgage at 2.0%, you’re assuming the previous mortgage at 2.0%.

Not quite the same deal, but I could see a low mortgage being a selling point.

Not all mortgages are assumable and many have “due on sale” clauses that require any seller to pay off the entire loan. This could be great for some special circumstances (like a home owner wanting to avoid forclosure or wanting to transfer to a family member) but I wonder just how many people could realistically take advantage of this.