High power bulbs require a large number of Amps (Watts = Volts x Amps, so Amps = Watts / Volts which implies in a 12V system that amps will be an order of magnitude larger than normal 120V household lighting), and to keep the voltage drop down thicker conductors are now needed.Nowadays LED bulbs can be purchased for outdoor lighting.

I know the power of leverage RE brings and love the idea of starting with a partnership.

Once you doubled your purchasing power, crunch the numbers.  

I live in a building with three apartments and there is only one power bill for the whole building and it is in my name!!!!!

On the Washington Post 'Best Books of 2016' list, I stumbled across this gem:'Evicted: Poverty and Profit in the American City' by Matthew DesmondDust jacket: “Evicted” immerses readers in the lives of families and individuals trapped in — or thriving off — the private-rental market for the poor, a brutal world in which landlords have all the power and tenants feel all the pain.

For any real emergencies I tell the tenants to call 911.Otherwise it can wait until normal hours.A downed power line?

Many of them are so close to the home and the power lines that they will cost extra to take down piece by piece. 

Maybe if you do offer to pay it out, that might give you greater negotiating power for an even lower sale price?

Who has the power to sell to you?

The end result is a pretty powerful tool for comparing how any given property compares to the current retail market.