. ■ Mortgage ( 20% down so no PMI ) ■ HOA■ Electricity ■ Gas ( None because new construction house has electric stove ) (Everything is electric )■ Water Bill ■ Camera Security system ■ internet ■ Lawn Care■ Regular Maintenance □ Will I need to pay for " Trash " ?

Bring an air compressor with fittings, hook it up, go around listening for air leaks.

After 15 years in this business, the hard market looks like it's here to stay. my background is in underwriting cargo, commercial auto and marine risk for oil & gas and trucking and all markets are facing repricing or pulling out altogether due to higher losses during covid.

The hard part will be finding the leak in that case.

Is gas line a possibility for your properties? 

Typically in northern states the cost for natural gas is way cheaper than electricity so over the life of the system your utility bills most likely will be cheaper with gas heat.Ductless split systems use electricity to power in heating mode.

Have a 1960s 30 unit single story motel where we are coming up on some end of life issues: the cast iron plumbing is disintegrating underneath bathrooms, radiators are starting to leak, electrical is in poor condition, and just today, discovered significant termite damage affecting multiple rooms.

(Costly but will eliminate need of gas bill, can tie into electric).The money I see is in the expansion over the next 2 years. 10 more units, 14 storage units, and on site laundry(already plumbed).

What about the plumber that stops a flooding leak on a Sunday morning or the HVAC tech that fixes a furnace under a crawl space in the middle of a freezing night?

Quote from @James Nix: It's obviously a leak and the most likely culprit is the toilet.