As a side note - it may be helpful if you could add a photo of the property in question to give a visual aid.  

Draw a comparison to what happened in Detroit to make your point more visual.

Not a database though, so only way I know of to scan the properties is visually by location (it is a map function, after all).

Visualization of all attic and crawl spaces is coming down the pipe.If you re-analyze the value using more recent comps, what value do you get?

Now I do a recorded webinar, so it's similar to the conference call concept but with a visual component so I can share photos of the project, charts, and data during the discussion so that viewers don't have to flip through printed material to keep up with the conversation.

. (~4-6 bedrooms here).B-level: Similar criteria to A-level but without the custom built homes, 2-income families can afford to live here and raise a family, backyards for the kids, 1500-2000 sq ft houses (~3 bed/2-bath homes).C-level: Majority of houses under 100K, visual repairs needed in this neighborhood, 1200 sq ft average, houses close together, some properties worn down, grass not cut, porch awnings sagging, concrete stairs crumbling a bit.D-level: Struggling neighborhoods, garbage on the streets, bars on the windows, higher crime, crowded areas, downtown city area, wouldn't want to walk around here at night.F-level: War-zone, "get me outta here" property, makes you nervous to enter the neighborhood even in daylight.That's my basic approach when I think about properties and what areas make the most sense to invest in.

Hello my name is Blake Van Ness and I have been listening to bigger pockets for a while now and finally decided to join the community.

Don't worry about "tenant insistence" as you have visual and written proof to the contrary. 

Need advice on what types of metrics to show on this data visualization that I'm creating to help find good areas to invest in.

My name is Chris, I'm currently a 23-year-old college student in Los Angeles, California, studying Visual Effects for the entertainment industry (i.e., special effects for movies -- y'know, blowing stuff up).