You also haven't accounted for capital expenses, vacancies, maintenance, or the solar panel payment in your cash flow calculation.

Power - need to assure you have capacity in your panel to add the load for this additional space.

There’s knob and tube along with updated electrical panels.

The house had been vacant for at least two years, so the electric panel was rusted through, the gas lines had been disconnected and the water pipes had frozen and burst.

In each you have to replicate the basic house systems, HVAC, HW, sewer, electrical panel, basic kitchen.

So after all is said and done and we are just waiting to close, the buyer goes in and sees a broken molding, a leaky faucet, a sticky light switch, a faded window panel or a water spot on the ceiling.

Basic 2-3 door sensors, motion sensor and a panel for $250-$300 upfront and only $39/ mo with no contract.On my properties I connect the tenant as 1st emergency contact and 2nd emergency contacts.

They system will beep when the doors open if the control panel has power otherwise its useless. 

I’m guessing the draw of small, 70 year old homes with small electrical panels, lead paint, asbestos, maybe a single car garage, and single pane windows in a frigid climate with high taxes is losing some of its appeal. 

SOS website shows lien is attached to solar equipment only but the lender is requiring to deal with the solar lien for title transfer.my idea;transfer lien to surity bond ---------------go through mortgage and title transfer -----------------------transfer back lien to property or panel discharge.