If it is just a snap down laminate not nailed/glued to the floor it might be less than $5000 to pull it up and install some of this or equivalent if you were close to passing the test.http://www.maxxon.com/acousti-mat_ii/data

The MLS access and past sales data is worth the price of admission.

@Michael Thompson Just googled Marion County GIS, and you're right that it's not very user friendly but it's great to know where to get official data.

Not because I am one, but because they have access to all sorts of market trending data, and can also make you aware of deals in your local market.There are a number of indicators that they will track that can immediately show changes.Good luck...

Task #4: Data review, project management, Site Investigation summary report $2500 

See if you can also get historical data, so you take into account seasonal factors.The seller should be able to assist you with most of this.

Use only the data available.

All tenant files and unit keys are kept in a secure area, locked.We enter financial data from bank statements/check carbons, credit cards statements and mortgage statements into Quicken and print out financial reports for our tax professional as needed.

I too never use assessments for my purposes, since real valuation data is available.  

I like the idea; everyone will ask, "Where did you get the data?"