As a homebuyer I was immediately drawn to any home that were photographed with the following qualities:
-Well Lit (no blown areas, no deep shadows)(also means golden hour during a romantically beautiful day)
-Colorful but not clowny. Has to look upbeat, have energy, etc.
-No distortion. Obvious barrel distortions or perspective distortions just look unprofessional for photographing a structure which, most likely, was designed to have straight, even lines in every direction. When the home is designed around curves, adjust accordingly.
-Well Staged. Get the cars out of the way unless it is a car that portrays the right image (Sports car, luxury car etc.) If the car works, it better be detailed to the max. Mow the lawn, trim bushes, brush off walkways etc. No trash anywhere, minimal personal belongings, put away that nasty old person furniture or crap your grandma has in the basement. It should be clean, sleek, and neutral. The list could go on and on, but attention to detail is key.
-Thorough. Cover everything. I wouldn't go see a house that had no pictures of the bathrooms. What does that say? I'd rather see an outdated bathroom and say "well looks like this room needs updating, but I like the rest" than see nothing and wonder how bad it really is.
-Watch HGTV on a regular basis to see what the latest trends are, see what people are drawn too.
At the end of it all, I chose based on the physical inspection and viewing of the home. BUT how did I narrow down my search? I certainly didn't visit every single home within a 20 mile radius of my workplace and within my budget. It was the pictures. Make every one count.
Does it sound like this is way more than just a photographers job? Yeah, but if real estate agencies in your area know that you understand and can do other basics of design/landscaping/etc., or can direct a "less qualified" home stager/landscaper to do a better job, you'll get hired more. Diversity can sell your product in a more challenging market, and real estate is hurting pretty bad right now.