If they do, do not walk/stand on it since it would just be a visual barrier. 

I am currently closing on a duplex in my area and the inspector found an attic mold issue that I would not have located on my own visual check.  

My assumption was solely based off visual amounts of multi-family buildings going up!

they complement each other and work in conjunction with the rest of tools (like marketing, financing, rehabbing, hiring, etc.).Here a visual help for your question:

I am new to this and am visual learning in the beginning!

Especially appreciate the visual graphs.

In that case, go back to the maps and just find it visually, and then you can get the owner.

Without getting into too much detail, you should take a look at this video for a visual break down of how to do one. https://youtu.be/52nHWZrp3-kIf you're more of a reader than a watcher, try this site out. https://www.thebalance.com/elements-of-cma-2867224You will need to look for like for like properties with similar features and amenities that have recently sold within the last 3-12 months depending on your market.

We did a visually appealing cosmetic upgrade and put the property back on the market.

Before starting any project, visualize it from beginning to end.