This also give us a chance to check the house every few weeks since we have to go through the house to get to the back yard.We're giving our most current tenant a window air conditioner this summer.

For example A cabinet door that will not stay shut and I run into it every time I walk into the kitchen, or water pressure that is so low I can’t get all the soap and conditioner out of my thick hair or windows that let cold air come in and make me really uncomfortable and drive my heating bill up .

As an investor I’d rather replace a broken air conditioner and pool filter than having to install new flooring, granite counter tops and repaint the entire home ….

Here is the list:Asphalt cracks fix up – coding for drivewayRailing/ spindles for decks x 2 - both decks are about 8x8 feetPower wash for deckStain for Deck x 2Garage doors x 2 - need to replace bothAir conditioners – 2 - need to install new ones, the current ones are rusty and oldHeating system Furnace x2Water heater x1 - 40 gal Windows  – 2 lower level double hang 2x2 feet; 4 bedroom – double hang 3x3,5 feet; living room - 1 big window 4x4feet - steelChimney top cover x21 New toilet  1 New sink with the stopper  1 Fan for downstairs bathroom 2 bathroom fans1 Stove 1 Dishwasher Bathroom wall fix - about 20"x20"  drywall water damage next to the tubGarage ceiling fix - old damage, no leaks about  a square foot 2 Toilet needs to be tightened to the floor. 2 Filters replacement for kitchen fanKitchen cabinet missing 2 doors We are about to find all the pricing on all the things that we can buy.. but we do not know how to incorporate labor into this quote.

I'd opt for 3x furnaces and 3x air conditioners with heat pump if you're worries about bills.

These machines would likely cost millions of dollars, and it is unlikely they could handle the more intricate tasks of finishing the houses… think carpet, showers, stoves, air conditioners, garage doors and their openers, screened porches, and the list goes on.Just my 2 cents All the best!

I spent a lot of time up on the rooftop working on heaters and air conditioners.

Not major, but everything I have bought has needed a roof or new furnaces, or new air conditioners, (it's always something).

I was more thinking about going with some sort of ductless split with a 2 single units with 8 zones and setting that up with one to run for the top floor (4 units, 2 zones / unit) and one for the bottom floor (something like this: https://www.totalhomesupply.com/54000-btu-multi-f-max-multi-zone-mini-split-air-conditioner/p/LG-LMU540HV). 

The mini-split is essentially an air conditioner.