Maybe our resident 1031 guru, @Dave Foster, will be willing to explain them.And, as it was mentioned, the very fate of 1031 exchanges is up in the air currently, since the Biden administration is likely to try to eliminate them.

Purchase price: $305,000 Cash invested: $45,000 An Air Force assignment took us to Delaware, where quick research showed that buying provided a much greater bang for the buck in terms of house quality.

Purchase price: $405,000 Cash invested: $10,000 Sale price: $495,000 My wife and I joined the Air Force lifestyle in 2009, and rented for five years before we worked up the courage (and savings) to buy our first home (VA benefits helped!).

I set about making criteria for myself, such as brick houses (we didn't want to paint every few years), warm locations (didn't want to have pipes break during vacancies), at least 3 beds and 2 baths, near an Air Force base and so forth. 

How old do the dirt tubes look?

The Ozone gas is a little heavier than air so it goes downward so I am not sure how effective it would be on a two story house.

This is done with air flowing through system for 15 minutes to 30 minutes to see if there is any leak.

Not to mention lath and plaster walls and knob and tube wiring and old plumbing.

I paid 4.5k to upgrade meter from 80 to 150 amp and upgrade service panel so I could get central air and heat.

A culprit I'm cognizant of is the toilet overflow tube and fill valve.