Lastly it cant be said enough that a good cleaner and handyman is worth their weight in gold.

It's funny, most of my landlord clients pretty easily agree to rent reductions but have a difficult time agreeing to big rent increases. 

If my rent prices are $109 for a 10x20 today, and I want that to be $200 (market rate is around $240 for new facilities but price reduction since these units are showing some age), how quickly can I adjust that up?

Thats $100 a month out of my projected cashflow a 25% reduction in my ROI!

In an appraisal, the SF Home value would rely primarily on the Sales Comparison Approach while a 2-4 unit value is more heavily weighted on the Income Approach, in an appraisal.If you have a dedicated income producing property, you should comp it to similar income properties.  

I've done 2 small price reductions since it was listed 40 days ago but have only had 4 showings and 2 completed applications in those 40 days.   

Agents with this type of expertise are worth their weight in gold to an investor--especially when the investor is relatively new and inexperienced.

It seems you're comparing appreciation in the stock market with cash flow in the real estate market and ignoring both appreciation and principal reduction of real estate. 

I think it does make sense to put more weight on cash flow and appreciation versus debt paydown and tax savings as the latter components seem to be more fixed.

If you can find a solid one, they are worth their weight in gold.