So far it looks like everyone has their own way of calculating value and I'm not sure which way/s are best for me to use.

I am a pro member and have analyzed this property several times with the Rental Property calculator. 

I bet you'll be able to connect with someone willing to do a JV (joint venture) with you or at least offer "softer" hard money to get you going!

You can do this via a RUBS calculation, or take the average for the last year or so & charge per tenant in the building, etc

., I looked into their business model and when I did the calculations long term EXP was a better fit for me. 

Also, understanding principle vs interest and how that is calculated.

Based on the kind of math I do, I would calculate that at a 1.11% ROI.

I would then put it back into service when the property is again used as a rental.example.1/1/2017 - 3/31/2017 used as a rental4/1/2017 - 6/30/2017 used as a personal residence7/1/2017 - 12/31/2017 used as a rentalCalculate depreciation from 1/1/2017 through 3/31/2017 and have the software calculate depreciation.Retire the asset from 4/1/2017 through 6/30/2017Then put the asset back into service from 7/1/2017 and 12/31/2017.It is important to put the accumulated depreciation back into the asset because this is your adjusted basis when you plan to sell the future again.Converting the property to personal and back to rental does not reset your basis.

In most cases the bank will want 20% down so your mortgage will be around $280k and over 20 years thats around $1800 a month off the top of my head. plus account for a 6% vacancy rate and $2400 a year in repairs and calculate how much the HOA fees are and insurance and the real estate taxes.

It is a mathematical calculation that can be adjusted by changing the inputs.I would look at this point for a strong market fundamentally.