Simple mold remediation is spraying the surface with bleach and then paint it with odor blocking primer after it dries.

I go by mine every other month and change AC filter and spray for bugs

On a different note there is spray in insulation that may suit your needs if you don't have a lot of space for insulation.   

Spray the utility meter to match the background (if they will let you).Good Luck.

That or spray foam (which personally sounds good but makes future work in that wall more difficult.

Unit 1Kitchen needs; GFCI protected receptacles, range hood needed, sinkvegetable spray holder is not attached, rodent droppings in thekitchen, need to seal the plumbing chase from the cellar to the 2ndfloor, the sink drains up hill.

Later they might when you are doing a ton of deals, but not in the beginning.If you have the funds to close on multiple deals, it makes sense to spray and pray, but not for new investors.

Sand, prime, sand, paint, sand, paint with a spray gun and premium paint.

Right now you're like a loaded shot gun.. you've got the finances but you'll be spraying and praying without knowledge, take a moment to sharpen your aim a bit ... so that when you do move, you'll have a bit of confidence and will limit your regrets.  

Thw aerobic tank then goes to the pump tank to spray treated water to the leach field.