Would this effect the property value by decreasing the income I could have had for this unit or could rehab be considered a years rent for tax and property value purposes? 

If you get past that hurdle you might need a self locking gate and fence.  

I would suggest just watching a quick tutorial on youtube on how to build one your self since its pretty basic and straightforward.

Aside from the differences in ideology, I find the discussions stem in part from the underlying premises and the syntax used.Basically if money should return at least 10% on average, the leverage camp [which I'd consider myself] more or less views a return below that baseline as effectively "negative CF". 

@Schuyler Hayes for those of us who are self managing our portfolios as we build them, I think using free tools is the way to go.

Multi-family, self storage, healthcare facilities, etc.

What would be the most cost effective way to build as many possible units?

@James Wise What'd you'd really want to do is get a self directed IRA to use to invest with.

And if I am willing to move on, you are shrinking your pool of buyers and effecting your sale price.

It will automatically take effect when his existing term lease expires regardless of whether he signs it or not.