It's a ego reaction, so high on the smell of ones own farts that they can't humanly conceive anything than their own greatness.

So start there, just-talk, that's it, no pre-conceived notions, just connecting to have a chat. 

Are there any tax disadvantages to this approach, and is this Ill-conceived?

., every conceivable airline flies in to LAX, John Wayne airpport or Long Beach.

You talk about enforcing the lease, I actually enforce a well-written and well-conceived lease.

., I talked with my real estate agent about this and she wasn't familiar with Subject-To, she had some of the same thoughts I had before conceiving of this possibility:- "The loan has to be "assumable" or it won't work."  

You are attempting to dissuade them from looking into something that you know next to nothing about, have all kinds of mistaken pre-conceived ideas about and that you are spreading disinformation about.

When these structures are conceived in the minds of politicians and their colleagues, all of the surrounding facts and how the structures relate to each other are not always considered.

Whatever the mind can conceive and believe it can achieve".

It's conceivable that the previous owner/contractor dug up the tank but decided to abandon it instead of remove it (maybe the tank was partially under the structure but this was unknown prior to digging it up) and didn't re-file for an abandonment permit.