I understand there is no nationwide search website.  

Check out their website. 

I don't think I can give his website on here...

Hi Lakeisha,-The state tax assessor's website is a great start.

Many members are experts in their respective fields related to real estate investing, whether that is real estate brokerage, wholesaling, flipping, buy and hold, lending, self-directed IRA and Solo 401k investing, or tax and legal guidance.There are some pretty cool discounts on various products and services offered as Perks to BP members that you might want to check out: https://www.biggerpockets.com/perks/pro

Treat people well and be respectful of their time so they want to work with you.

Second issue is I have only found one property with it's assessed value posted on the county's auditor website, all of the other properties I have looked at I can not find assessed value anywhere. 

You might recall that public adoption of the Internet was only just beginning in 1996, so the SEC was ahead of the curve in this respect.

Sounds like someone has been spending way too much time on conspiracy theory websites. 

I see such potential in him and I want to pass some books or websites or whatever  to him to help him start to grasp the understanding of saving, preparing for the futures, etc.