It don't believe anything other than the roof and hot water heater has been updated since the 50's.

I have been in the Air Force for 10 years now, and plan on continuing to 20 years for retirement.

Then sell and take the $40K tax free using the sec 121 primary residence exclusion.for bonus points, Air BNB it for weekends at the beach. 

An example would be For Sale By Owner because it seems pretty easy when the market is hot, the property is simple, and both parties are honest; it doesn't take much for a FSBO to turn sour.AirBnB arbitrage is another model that looks good on the surface when everything is going well.

Look at buying an air purifier.

The housing market still in these areas seem to be hot/warm, cooling a little because of the pandemic.

Radon in air and/or water? 

In fact the larger multi family investments right now are super hot and sell very quickly.

My capex budget also includes roof, appliances, hot water heater, hvac,bath and kitchen remodel.

Putting yourself out there as far as applying for job you qualify for and don’t because the job I’m going into has nothing to do with Air Force Logistics but to them I knew enough that in that field that made them feel like I could adapt.