There is a cinder block structure on it now that is basically a 1BR, 1BA shell with plumbing fixtures, but no kitchen.

I can see sharp investors talking to these folks and just basically talking the seller into cancelling and coming with them as they will pay more..

Those losses can be substantial, by the way within an HVAC system-Again I doubt these technologies would hold up under scrutiny within a court of law because all it takes is one person with even a basic grasp of principles of engineering and you’d find an easy 10+% delta in these systems’ measuring abilities.

Everyday RE investors achieve success with just basic math skills.

I've included an example below to help illustrate this.So different lenders have different rates (which do vary even for DSCR loans) but these are factors they all consider.See example below:DSCR < 1Principal + Interest = $1,700Taxes = $350, Insurance = $100, Association Dues = $50Total PITIA = $2200Rent = $2000DSCR = Rent/PITIA = 2000/2200 = 0.91Since the DSCR is 0.91, we know the expenses are greater than the income of the property.DSCR >1Principal + Interest = $1,500Taxes = $250, Insurance = $100, Association Dues = $25Total PITIA = $1875 Rent = $2300DSCR = Rent/PITIA = 2300/1875 = 1.23If a purchase, you also generally need reserves / savings to show you have 3-6 month payments of PITIA (principal / interest (mortgage payment), property taxes and insurance and HOA (if applicable).

Secondly is to outsource everything to a professional so you are basically acting as the developer/project manager.

I would not sell unless you have another place to move that is basically paid for.

Here are some basic facts:Initial cash invested: $120kYear 1 Cash Flow: $12.3kYear 2 Cash Flow: $8.6kYear 3 Cash Flow (YTD, 3 months left in year): -$4.5kCurrent equity estimate (net of expected selling costs): $102KMortgage rates at or below 3.75%CapEx uncertainty: HVACs will likely require replacement within the next 5 years and one of the  roofs is nearing 20 years old.Market is the Huntsville, AL area.Underwriting hurdle when acquiring these properties was 10% CoC return annually.With a 10% CoC return after Year 1, I felt good about this investment.

They may ask for a basic LOE but that's if they are really nit picky. 

Also, have you made any significant alterations to the property or if it were put on the market today, would it be indistinguishable from a standard 4-bedoom house (are there any extra walls for the SRO, constructed locks/barriers etc.)If its a standard SFR and the leases are very short term - there is a path that you could refinance this with a DSCR as basically a Short Term Rental and then potentially change strategic course back to SRO if needed at a later date