As you will read through the rest of my answer, based on the risk profile of the company and property, you may need to run those numbers off a higher percentage, yet only rarely would you be able to run it off of lower and even then I would say 44% to 45%. 

Assuming expenses at 45% of rent, and a loan at 4.5% for 30 years, you'll end up having free cash flow of $203/mo.

Running cable (or phone line) to one spot, or every room, may work for 100% wireless networks, assuming the wireless router can connect up to the modem in that location (the router is your 'network'), but if you want wired ports (and there is certainly good reason to want wired ports, I would), those have to be run using CAT 5 or CAT 6 (preferable) UTP/STP cable with RJ 45 terminations.  

I don't see CapEx listed and your 6% for management is a little low.If you use 45-50% for expenses, then do the numbers still work for you?

It depends on the process. if you go through local banks and provide many years of tax returns, w2s, paystubs, leases, bank statements, etc... and go through their grueling 45 - 60 day process with DTI requirements and property limitations etc... you can get rates in the 4.75% range to 5.5% range.

That is what I have been doing for the last 4-5 months.

If I were you I would try and partner with someone in your area.Good luckI agree with everything else except timeline, I don't know why or how it will take a year (or 8-9 months construction), but gut out rehabs, might take 3-4 months depending on city approval,  so say it's 1 month, then it means that everything will take 4-5 months then another month or two to sell, at max 8 months, that's just me though.Property looks like an abandoned building or an REO, so that throws the lead, asbestos, and mold testing in.

@Kristopher HanksEven worse-  the HOA pulled a shady move - at 4:45 the afternoon before the auction they file their lien - no way to see the lien before the sale, but stuck with it anyway 

This is more like a typical small city.Columns C and D from rows 29 to 45 calculates the Investment of $25k at time of Purchase and the Sales proceeds at time of Sale, given a 10 year holding period of which the Selling price had been calculated as $160k from the Appreciation Rate.Rents start out at $3,600 per month or $43,200 per year but will climb 2% per year.

After I do 4-5, I won't need the HELOC anymore as I will have enough cash to carry my properties.