Error on the side of conservative.  

Certain alternate energy components, they qualify for a shortened depreciation period.In any case, by shifting the heating costs, you've increased the value of your asset pretty dramatically.From  bizfilings.com/toolkit/sbg/tax-info/fed-taxes/cost-of-capital-assets-not-deductible-expense.aspxBeware: Buildings Are Actually Multiple Units of PropertyIf you own a building, you already are aware that there are numerous systems within that building, such as the plumbing system and the heating system.

Yes there are numerous ways but it takes some creativity and perseverance....I started on a shoestring budget so I searched websites that scan multiple website posting all at once like searchtempest.com  and searched for motivating keywords to find sellers and even landlords.  

So far the only fatality is due to human error.

@Wendell De Guzman  Thanks you have made me wiser and filled with the knowledge that would of taken me trials and errors to figure out!

First, the ARV is the largest number and an error can become a big problem. 

There are numerous possible pitfalls- make sure you understand the zoning for the property inside and out.

Here, of you can find the attorney/person who Drafted the deed, the can simply file a Scrivner's Error affidavit.  

Your results will improve in time as your numerical efforts increase.

I've spoken to numerous people who ask for more information about our company and our reputation.