Not only does she actually invest in real estate, but the company listed on the email is a real German company.
In addition, when Christine did her due diligence and asked some questions (including what the money would be paying for), they knew to respond by saying that the company was designing some German apartment units in which Corcoran has invested.
Apparently, those behind this criminal enterprise manged to get the real Emily’s email address and then change it by just one letter, so that they are actually the ones communicating with Bookkeeper Christine on this matter.