Withoutknowing the details I can not suggest which would be right to add on.Several you shouldpay attention to are:- Ordinance & Law: Provides additional building coverage to deal with rebuilding costIncreases due to changes in Zoning or Building laws- Personal Injury Liability: Libel, defimation of character, wrongful imprisionment, etc.

@Rick Stein market price 44900 I figure you could get for 40 and my research In To the area I gave my best estimate to the numbers now with that being said I’m new to this and I’ve come across several deals like this

I am looking to build a 750 sq. ft. house ( a 2/1 specifically) and I just want to get a rough estimate of the per square foot cost?

Let me start by saying I have not visited the property yet, I'll be doing that in the next week or so.Here are the property details.  

The rent roll is below market, and the building itself needs a good amount of work (Estimate roughly $500,000+ worth of work)3.

@Bob Green Great details.

Our intention was to learn as much as we can, so in the future it would be easier for us to estimate how much work new project needs.

And how to estimate vacancy?

However you did not give us any details to offer guidance 

You need to look at the actual estimated life span of things and since you know your exit timeframe you can figure out an exact dollar amount to save every month.