Ideally, they have experience with electrical, HVAC, plumbing and management. 

And then there are also  sewer scope fees, and if your inspector recommends other inspectors to do inspections on things like the plumbing system, the roof, the electrical system etc... those have to come out of your pocket also- if you're going to pay for them.Does your lender require a Phase 1 Enviro; How do you intend to pay for that? 

We needed an upgraded 200amp electrical panel ($5-8k), extended water and sewer for the garage ($5k), built out interior ($7k?)

Currently the heat/ac situation is electric baseboard heat and window ac units that my realtor is insistent should be taken out and I should have mini splits or a furnace added instead.

. - Submetering - I went through the process for one of my buildings (gas and electric).

This includes some major items like below upgrading septic to elgin septic system 20kupgrading electric to new cod 20ktree cutting trimming 10ktrench/French drain 10khvac replacement repair 10knew plumbing 10kcrawlspace repairs 10kappliances replacement 5kdoors replacement 5kmold repairs 3kroof repairs 3kother repairs It is in good location.

What adds value is the sewer/septic, water and electric at the site.

New roof, new siding, new plumbing, new electrical system, new kitchen, 75% of windows are brand new and fully renovated house.

The wholesale electric rates depend on location and time-of-day in 5-minute intervals.

But, most BPers either aren’t interested in, or like me have no talent for doing the carpentry, electrical work, plumbing, etc. in renovating a house.