Are there any recommendations from anyone who have found certain news sites or data sources to extract data from that has helped them understand the current market landscape in their target area?

All ownership information is public record on every site so the only reason you won't disclose it is because it will prove you are lying or really puffing in your post in order to try to get business.

Show some cherry picked comps and be specific on why the value should be lowered, making sure to site current condition if anything needs upgrades, etc.

I couldn't imagine investing in a property out of state without semi-frequent visits.  

You’ve already hit the nail on the head—patience, organization, and a solid team are all crucial.I invest in Michigan and visit 3-4 times per year, primarily focusing on Detroit.

When listing the property I would list on those sites as well as Zillow at a minimum. 

For that reason, I decided to start flying to/visiting states like North Carolina, Ohio, Texas, Missouri, etc. 

I have read extensively on this site about coin op vs non coin op and the opinions are decidedly mixed.

I plan on doing the site seeing before the conference.  

You will essentially be buying a pad site so you would have to build new.Also realize what you will pay to insure that in the future as part of your costs