Larger houses though and all high-end stuff.

Does he have the right to make the sellers wait on a variance or do a larger subdivision?

An agent who had good markets for 1-4 family properties may not for the larger.  

If you pre-install the TV mounts, and they hang a larger TV on them, they will blame you when they fail and fall.

You're almost bird dogging the property for them.

, doors off hinges, broken windows--unreported and just left broken and open to the elements, heavier wear and tear on flooring than class B, large secret dogs that they are babysitting for a relative in jail for unpaid parking tickets, cigarette smoke smells indoors, broken shelves, home-made (crap) repairs on things, dead cars on the property, dead cars up on blocks on the property, piles of old bald tires, etc...Not all, but some. 

Today it's only 28%.Climate change will impact decisionsThis one was interesting to me as we do see larger fires here in Colorado.

However, depending on the property our property loss deductibles are $5K, $10K or $20K upon the theory that I'm not worried about the small losses but the larger claims would hurt a ton more. 

The house smelled absolutely horrible, a little bit of cigarette smoke and a lot dog pee. 

Wants and needs are different animals, and you probably don't need a dog until you have a fenced yard.