Happy to connect to learn your personal preference and goals, as well as the professional/RE ones, and help guide you towards a location that would be conducive for both aspects.

Roof and attic insulation are key factors in controlling the heat load.Commercial HVAC sizing is based on that plus the addition of heat from air supplied from the outside to replace "stale" air indoors - local ordinances often require specified amounts of air replacement - in an occupied space and also from the number and activity of individuals expected to occupy that space.

I’ve painted oil Derricks, built roads, built houses, remodeled houses, commercial painting, custom showers, foundation repair, truss repair, Roofing, excavation, it’s all a good time to me.

Bluetti AC500 with B300s batteries are perfect for your offgrid ADU applications.You just need a few solar panels on the roof to charge you AC500 or for larger units the EP800 will work.

A lot of times, depending on city ordinances,  landscape overgrowth, on the home, on the roof, on the sidewalk, garbage near or around the home,  just to think of a few things, can result in violations and fines from the city.

If there is a roof leak, you are likely to just repair it yourself rather than get insurance involved. 

For example, if the investor knows the H2O heater, roof, appliances, or HVAC unit are of different life expectancy than the average the program defaults to, we will have the future ability to enter the investor’s expectancy.

No personal experience here but here's a helpful reference from someone who wrote a blog about different aspects of a 2 flat remodel in Chicago Scroll to "Two-flat journal 6: How to make an all-electric house" - - speaks a little about heat pumps and cost In the HVAC section.  

@Jorge Leon replacement costs are through the roof this year.

The problem is that we have only just started renovations (just the roof so far) and i'm hesitant to post photos of it while it's looking less than optimal.