The shared driveway would experience traffic in the mornings and evenings, conceivably other times as well, it would be a storage facility for tools and vehicles.  

I have a standard answer for most any question they will conceivably ask me.

They only auction the rights and interests of the tax debtor and it's not uncommon that there is another or other persons on title that could conceivably be your real estate co-owners. 

If I research several hundred properties on foreclosure websites, estimate repair costs from photos or estimation "shortcuts," get comps from Zillow and assessors values, is it conceivable I could find a few good non-mls deals to wholesale to the investor?

Those who are getting the returns you desire probably understand how to execute a well conceived system, and it's quite possible it works only for them or their market.So to answer your question, if you wanted my opinion on the best return, I would find it very difficult to say anything beats what I offer, but of course I'm just another biased blowhard!

anything one can conceive and believe, one can acheive!"

Because you have not yet taken title to the new property you could conceivably do a 1031 reverse.  

If I do that in direct ownership RE, I can conceivably purchase $500k worth of RE. 

The fact it was poorly conceived & ill-written only exasperate the problems with that Act. 

In my experience, it's usually quite a pain to separate heating systems between units if it wasn't built this was initially (as in, you'll probably end up having to run new entirely new plumbing for the system--which, for a hot water system, is conceivably, fo a steam system could be a lot of work).