I've got live camera feeds on some things we've built in other areas - i wonder if this could somehow be a feasible method of long distance construction management.

I'm wondering if your concern is really about exterior finish but rather the horrible and depressing construction quality and lack of architectural distinctiveness in loads of CA houses.

The quality of tenants seemed lacking as well.

The method I used was to look at sales in the past 0-6 months, a radius of 2.5 miles (big house, with big lots), and average the price per sq. ft.

I have found that states and counties vary as to quality of information available and how you access the data.

The photos are you first impression of a property, and, much like all things, that first impression will make or break interest.The average DIY enthusiast can pick up a thousand dollar camera setup, watch free tutorials on YouTube, and be producing quality work for their own purposes, and maybe even for other people, but it's a serious trade to learn.

Besides what Jon and Joel have said about high turnover in one bedrooms, I'd add that your tenant quality in the $400 range could be challenging.

I dream of creating a Property Management company that specializes in community turnaround services and quality of life improvement for low and middle class tenants. 

The acreage amount would vary a lot, depending on rain fall, location, and pasture quality.

I would probably not do this method because I am a dog lover however i must admit it would be highly  effective  .