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Houston in particular be vary wary of flood zones and any potential historical water damage from the frequent flooding / hurricanes of just a few years ago. 

The more frequent the turnover, the more time required and the corresponding higher cost.There are also market variables, dependent on the property location.So, you are basically correct with your theory:)

We see this frequently were you have two monuments inches or feet apart..

Need to know county, city property tax breakdown, dimensions of a few rooms, parcel ID #, etc.... but again, this is information that a listing agent will frequently leave up to the seller anyway.  

first class can and does get sold out frequently with premier status flyers getting free upgrades sometimes there are no other seats

This is frequently how marketing today is perceived. 

Each week when I drive by to check the property the yard has been mowed first thing Saturday morning which is more frequently than I would have maintained it.

As Travis mentioned, there is motivation by the location, as we frequent the area for personal use and vacation, but that is not the only motivation.

@Stuart Udis is a great legal resource and frequent community contributor reach out before you spend tens of thousands on this canned product.