Images play a pivotal role when selling a real-estate - buyers get a glimpse of their prospective new homes and decide whether they are going to buy it or not. Therefore, there's even more responsibility on the shoulders of real-estate agents if they publish their work on a social networking site that deals mainly with images.
The most crucial part of a deal is closing it. When it comes to negotiating, you better make it quick, otherwise it will turn into an undesirable, and never-ending torture.