Or you can simply explain that you are contagious with a life threatening disease and anyone who walks into the apartment will die within seven days. He may even give you the apartment after he hears that. It's a win-win.

If you absolutely cannot get the date rescheduled (which you certainly should be able to by saying you have a contagious illness), surely there's someone you could pay to clean or if you don't have money maybe could ask a friend to help you out. I know if my friend was at risk of losing their place, I would definitely help them out.

You sound like somebody living in the "before" part of an infomercial for products that you strap on like a feedbag, so you can Vomit While You Work!™®

Clean with two buckets. Make sure you keep your cleaning bucket separate from the throw-up one.

Just tell him or her that you are sick and would be willing to schedule as soon as you are well.

I will help you clean edit we live way across the world from each other so never mind ask a friend

I've told my landlord before that I was sick and NOT up for inspection. She's usually pretty understanding and will postpone the invasion for a week if i explain. It's just not understandable if I do it often ;)

You should be keeping it clean anyway