You might as well just focus on listing other peoples properties if your going to substitute prophet for labor.The same goes for using your own money. 

If you plan on adding living space there then you should substitute the epoxy to laminate flooring that is water and mold resistant.

@Jay HinrichsYes, they are substitute trustees, selling homes on behalf of the bank.

Other things to check include: was the notice of sale properly published, are there any federal tax liens, are there any liens which survive the foreclosure(in my county people borrow money from the utility company to put in a heat pump and they put a lien on your house, those liens survive the foreclosure), did they file a substitute trustee, did all parties sign the previous warranty deed, does the legal description of property match the address, are there any survey issues.

You can have RE agents and PMs assist you, but they are no substitute for doing your own home work.

I might substitute "common sense" for "curiosity" or "hunger for knowledge".

It does this by substituting payment of a small, known fee—an insurance premium—to a professional insurer in exchange for the assumption of the risk of a large loss, and a promise to pay in the event of such a loss.

Some you can get from books but no substitute for local boots on the ground advice that you trust. 

I'm a former teacher turned stay-at-home/part-time substitute looking to make her own income and contribute to family finances.  

When contractions occur people look for substitutes.