However, I’m not sure how to accurately determine its value, given the configuration and the fact that it’s not fully rented.My Concerns:Determining Value: How should I calculate the fair market value for this type of property?

This will help you get the most accurate estimates. 

@Jimmy Woodard I had looked at Airdna already, I just didn’t know how accurate that info was.

We run a free predictive analysis for anyone that wants one to see if it even makes sense for them and approach it in a consultative manner and we welcome our clients to have their CPA's join the conversation.I'm not an expert in this field, yet.

However, sold data is restricted in a lot of states so it's not accurate comparatively.I have always found the overall interface average.

This will consist of finding a good deal that requires some work and is below market value, and making sure your contractor is accurate with the budget and executes the work as stated in the contract.

Skip Matrix is a little more accurate but very pricey.

For example, if we sold the property for the asking price that it is now, $459,900, you would get $275,940+$41,315 (profit accured from 15 years)= $317,255! 

He sees me as a dreamer, and not a doer, which to his credit is kind of accurate.

For example, say I have a foreclosure, or expired listing lead that I would like to find accurate phone numbers for for prospecting.