Example, Just purchased five run down buildings in a broken river town with a declining demographic.  

Markets (or MSAs) like Jacksonville are broken down in submarkets.

Last summer it needed a full rehab--triggered by tenant damage with smoke but went ahead and used it as an opportunity to go ahead and do the upgrades it needed anyway.

By category, I mean all the sorts of things you have broken out. 

File a police report and ask if there is any law broken.

At the moment, I don't think it will pass VA inspection standards, the porch stairs is rotten and support is broken. 

I have been viewing BiggerPockets for years but now considering upgrading to PLUS after really looking at the calculators.  

He has also called the police to file a noise complaint against our GC upgrading the property.  

But, oh wait, this one offer is from someone that is willing to spend several thousand dollars fixing up my house, so even if he doesn't close, I get free house upgrades!

You could hire a lawyer but they might just review the contract and you'll find yourself running around like a headless chicken.Make sure you disclose EVERYTHING, as a buyer can turn around and sue you if you lie / keep quiet when they ask you a material question (Eg: "is the roof broken" (it is) you: "I don't know."