Days on market are up to 55 DOM, measured from the date a property is listed to the date that it's closed. 

What you've listed above isn't a plan, nor are the goals you stated actual "measurable" goals.Your goals should be specific, as in:"I need a specific dollar amount by a specific date. 

These are items that you can't measure in ROI terms. 

It's not just about net energy cost savings, although that's the easiest to measure.  

@Geoff GarberAs several people have mentioned here, and as the Russian proverb entails, "measure it seven times, cut once!" 

IMO, that's the base case you should be measuring against. 

Net worth +$1 million for good measure.

Also, who would be doing the measuring of the 600 feet?

In formulating what a bank will accept for a sales price, they start with an appraised value, deduct for carrying costs and they also generally have what is called an "REO stigma" that they can into consideration.The REO stigma is a measurable discount banks see in the market once they take back a property.

Sure, it may have appreciation but success and failure is measured by achievement of objectives and if the objective is cash flow, it can't be considered a success based on appreciation.