In my case, I got the idiot appraiser to increase the value by $15,000 and that was enough to save the deal.So I'd drill down deep on your comps. 

Well without seeing  the property your payment on 600k will have to have a rent increase on all six unit to make it worth your wild. 

That being said, our population is not increasing; it is decreasing overall. 

What all investors need is a solid grounding in Economics and the effects of policy, both locally and nationally.It really does help.Also, I wouldn't call this Investment completely not liquid.In fact, if you believe in future Interest Rate increases, and I certainly do, borrowing against these Investments increases your profitability as you can lock in the lowest interest rates NOW.

So investors squeezing yields to try to increase NOI might can expect a downturn if the economy goes back down.

You will obviously find cheaper deals in this kind of cities, but the value will hardly increase over time, if at all.

Example if you have to track down the estate and spend endless months to get an increase in value of say 30k is it worth it to you?

By playing with allocation and cost segregation, you may significantly increase depreciation in the early years.

          Here's some principles that helped me get a great CPA, and subsequently helped me get financed on my first commercial loan.

Keep lent increases modest and wait for a turnover for any major rent increases.