House renting services like Airbnb are very popular these days and I've used their services while traveling abroad. Usually, the advertisement requires pictures of the place, but many times those are photoshopped or taken from a special angle.
Imagine one rents a flat in NY from a Jewish dealer through a phone call without seeing it only agreed on its footage and price.
What conditions in the rented apartment are the sure dealbreakers according to our Halacha?
(IIRC, the Gemmorah in B"B requires the ceiling to be higher than 10 Tfachim - 80-100cm).