What about your electrical panels on the poles going to each home?

So I'm considering these different electric options:1) cadet wall heaters with built-in fan2) plug-in panels (VonHaus 450W Wall Mounted Electric Flat Panel Heater - Paintable Slimline Low Energy Eco Ceramic Space Heater (23.5 x 23.5 x 0.4 inches) https://www.amazon.com/dp/B01LZ3NE3E/ref=cm_sw_r_cp_api_H0Q1ybQHE3DNG)3) convection heater (http://m.homedepot.com/p/Stiebel-Eltron-1000-Watt-120-Volt-Wall-Mounted-Convection-Heater-CNS-100-1-E/206160725)So I'm wondering if you have experience with any of these models or styles.

I've gotten rough estimates between 30-40k to do this (breaking down internal wall, plumbing, electrical, everything that's required). 

But just prior to the walk through she told me that there were issues with the electrical in a guest room.

I don't know your intentions for the space, or your arrangement with the owner, but a proper build out could involve fire separations from the rest of the facility, HVAC, electrical, fire suppression, etc.  

Hello all,I'm 31 years old, married, living outside Cincinnati and working as an electrical engineer near Dayton.  

The idea is that you have a $27 electric bill most months, and maybe $110 in the summer.

If the wiring has not been updated, some newer appliances may give you fits such as the microwave oven(check to see if the electrical panel is newer [circuit breakers instead of screw-in fuses]). 

@Mindy Jensen That was the 30 amp electrical box that hadn't been updated since the home was built.  

It just got some new electrical.