Look at areas with high rental demand, possibilities for capital growth, and properties that fit investment objectives.

I would not value that any different that a single family - not until its a true commercial though.Check that its a LEGAL 3 unit (you can see that on the county website), and your also get some other insights to the property as well.I agree with #Eric E. that the seller is looking for a sucker...

You can also build a relationship with a good local agent and ask them to run comps for you, or in certain situations like selling a high-end home to a friend off market I’d recommend just paying for an actual appraisal.

The prices of homes in the Mt Orab area are selling at a high price in my opinion.

What websites do investors use to help them find deals? 

I have a rent-to-own website that brings in organic leads on a weekly-basis.

I also have thought of the CD plus some money market/high yield savings.Thank you!

But, as others said the other local IE markets are about double the High Desert values so that could help maintain the high values.  

Tesla is building a semi truck factory and multiple data centers are bringing high paying jobs and diversifying the economy.  

This is especially important in highly appreciating markets.