The total number of liens dropped again in comparison to previous years.

Lets compare Memphis to lets say Denver...Memphis Avg Price = $118,467 Avg Rent = $10,906 Maint can CapEx = $1,635 (fixed since heater costs the same in Memphis as it does in Denver as you are saying...)All other expenses = 40% of gross rent = $4,362 (I put expenses at 40% just at random and have the 40% fixed for Denver as well)NOI = $4,909CAP Rate = 4.1%Denver Avg Price = $364,400 Avg Rent = $16,932Maint can CapEx = $1,635All other expenses = 40% of gross rent = $6,772NOI = $8525CAP Rate = 2.3%So it looks like even with you stating that maintenance and cap ex-numbers cost the same from market to market higher rent to value markets do reflect better cash flow invest ability...by nearly being twice as lucrative in terms of cap rate vs cap rate comparison...

So I did side by side comparisons in 5 different homes and the case study showed basically the same test results. 

Maybe I need to be more specific in my question, lets say I'm going for the BRRRR strategy how different it will be from getting an Home-equity Loan instead of Refinance, talking about time, hassle and amount of capital that I can get back.Thanks @Ron Harris I did a little of research and though about getting a HELOC too maybe I should add that option into the comparison too.

This is not a good comparison to go off of. 

The existing mortgage will probably save me over $30k in comparison with my new terms factoring in the remaining maturity with the existing financing and the rate I would pay with a similar maturity.3.

The important comparison to make is what you would earn with the after-tax money from the sale. 

You might not get exactly all you need, but you get a lot of data as a starting point or another comparison set.

Very often high vacancy is a sign of poor management not necessarily a problem the new owner will have.My appraisals generally show a rent comparison.

Each Level is assigned a role within the system, which is how/why they feed into the next Level.4 - An understanding that a Perfect System is both Self-sustaining, and repeatable.5 - Understanding the difference between, "cost and expense".6 - Understanding the only important rule of Poker, and how it applies to REI.7 - Understanding the enormous importance of this number sequence.