And the ultimate disposal comes at a tax sale. or if not bought at tax sale then maybe reverts to the state or county as surplus lands to be auction off at sometime in the future.

Every "Handyman Pete" on craplist says he/she can tile everything, call em up and say you bought surplus space shuttle "oh yeah, I did a bunch a dem space shooters, that's extra though!"

The owner (or lender) can then apply for the "Surplus" that is the amount of the bid minus the taxes owed.

I have bought from Builders Surplus in Smyrna as they have vast selection for very cheap, may be around $18 to $25, just primed so you will have to paint. 36" Steel front door was about $40, but it has been a little while since I last bought a door.

@Alan Casilla, in my experience, currently you will run into the same challenge across the board (in the US at least and definitely in San Antonio and Columbus)- a significant surplus of investors related to available inventory.  

You can pick one up at any decent army surplus store.

For me, I elected to design this system so that it produces a surplus for at least 7 months out of the year. 

Invest the surplus as a hedge against inflation.

The one that you think will be your best bet making the most money at long term.Being an Electrician is a totally different life experience than being a plumber or a Policeman or a Postal Employee, etc...What kind of work to you think "suits you best" and makes enough money so you have a surplus of money based on you (and your families) standard of living.Where can you get apprenticeship (and with whom), and how long will that last?

The surplus goes to next in line or the owner.