Sage advice, I'll probably try it. Still, this may fix my immediate problem but it doesn't do anything for the elephant in the room that, judging from the comments here, was hardly addressed:

she returned home to read her e-mail, which contained over 100 replies.

THIS is the real problem. At the end of the day (or the week) it doesn't matter how one out of the 100 candidates is selected; what matters is that 99 fools will have to keep looking. Finding housing shouldn't be like applying to Google.