On the exterior, removed all the overgrown bushes from the front and back, cut 2 small trees in front, planted some sod, power wash exterior of the house, and added mulch and solar lights.

Purchase price: $505,000 Cash invested: $125,000 Sale price: $550,000 Performed the following renovations:-Roof replacement-Converted doorway into an open archway-Kitchen replacement including flooring and moving and running water lines-Converted window into a patio door with patio steps-Lighting & electrical panel and fixtures-Painting exterior / interior-New Gutters-Carpentry-Landscaping

The main problem is that the shower electronic control panel is locked and I am not able to unlock it to access the options. 

Cons: Natural gas is not renewable like solar power or wind energy, so if you stop using this form of fuel then there will be no furnace to keep you warm.

Not knowing anything about solar, my agent (who represented the seller and myself) told me the house came with solar and advertised it on MLS.

Do you use solar panels ?

Have them cut an access panel so you can see it. 

I tried posting a similar question in the landlord forum, but I didn't get a response that really spoke to the legal/liability issues with electrical work.I know I need a licensed electrician to do any work in the main panel to avoid a liability issue. 

I use the rapid lead paint testers on older homes.I also check the electrical panel for those that no longer meet code & check for a heavily corroded bus bar.

Electric panel is overheating, and appliances are not included.