The proper amount of due diligence prior to bidding would have uncovered that this was a second note and not the first.What to do now?

There can be hidden liens on the property that aren't so easy to uncover.  

If you do not have reliable,skillful and honest tradesman lined up in advance you are likely to go well over budget even if you do not uncover the inevitable unexpected problem.

I was wondering. As many tenants will tell you to your face that they do not have a cat or dog, and then try to sneak them in...

What about the following idea: Ad text say "pet friendly" Seems people are more like...

That matches mortgage fraud schemes that have been uncovered in other cities,"http://www.journalgazette.net/apps/pbcs.dll/articl..."

., most of which individually violate the clause and in the proper combinations could bring the entire house down.I have never heard of any bank or lender paying money to re-examine the title after closing to uncover all of us evil investors who learned proper asset protection or how to structure a subject to deal.

specialised in real estate tax in Chicago / USA. 

Which would be a 150-170 space parking storage with paved and unpaved, cover and uncovered parking.

I make it clear that I can't see everything until they are completely out and that the final walk-through may uncover problems not identified in the pre-inspection.

If I uncover a hidden gem, I would be more than willing to share that with you.