Not all lots are cost efficient to build on.

I want to be in this for the long haul but I still want to work as fast and efficiently as possible!!

Any recs for something that efficient and clear? 

Not an impossible task, but it winds up being ALOT of work for a home that is still likely to have a number of deficiencies compared to a newly built, energy efficient home.Now the question I've had a lot of people ask me is: I just bought a concrete block home.

Which is .16% of the global energy use and less than half of the energy required to mine gold. 56% of that energy, and growing, came from renewable sources. 

One buyer could take up a lot of your time and energy and there is no guarantee they'll stick with the deal.

You're none of these so don't waste the energy looking at them. 

Additionally, it’s helpful to educate tenants on ways to conserve utilities, such as using energy-efficient habits.

Now, one month later, I’m called to face this situation.My energy level was low.

This can make the real estate investing process and management more efficient and less burdensome.Here's an article with additional FAQs on cost segregation studies that you may find helpful. https://www.biggerpockets.com/forums/51/topics/1113749-cost-segregation-faqAre you streamlining your services?