The freedom to fly your own aircraft is something that one needs to experience and then equate to what its worth..

 I am an aircraft mechanic and in aviation we have an acronym that goes like this K.I.S.S. 

And last week he became Aircraft Carrier Certified.

Im all full time worker for American Airlines as an Aircraft Mechanic.

Air rights are defined as the ‘right to control, occupy, or use the vertical space (air space) above a property, subject to necessary and reasonable use by neighbors and others (such as aircraft).’Generally, owning property includes the right to use and develop that space above ground without interference.

It's the fastest way to turn a large fortune into a small one that's for sure.On our aircraft owner and pilots forum... one of the repeated phrases is he or she just did not know what they did not know.. this is the same thing here ..

However, maybe due to bad luck, my experience with condos were negative, all due to HOA incompetence.When I purchased and moved into my Elmhurst condo, it was new, rehabbed from a aircraft factory.

My 9-5 is working as the Assistant Director of Aircraft Maintenance.

I'm in San Jose now, but not near the airport or any aircraft flight area and I don't have the black dust here.Is the unit near a busy highway or airport? 

I'd contact the Contra Costa County Public Administrator's office: https://www.contracosta.ca.gov/962/Public-Administrator  You might need them to take over and look for a will among the belongings, etc.