Most of the general housing inspectors aren't trained in engineering and will get very rigid on stuff they perceive as structurally unsound.

Both training programs sound great.

I tell them my buy number on just about everything I get, though, just to kind of train them up.If an agent told me they wouldn't work with me unless they got all of my business I'd laugh at them.

This is an ongoing event.

The spread on rents needs to be greater to take care of the ongoing issues, you're basically a property manager.

Once you have your storage facility up and running with staff, you can cross train your staff to handle some if not all of these tasks, as @Elizabeth Colegrove suggests.

I am convinced that there are not many if any, who can put a multi-family unit on this piece of land which will meet all the City guidelines successfully; I managed to achieve this on a very similar site, which was completed in July 2014, only because of my training and coming from Europe where we have a lot of instances like this there. 

Many can go from bad to good with training.

In addition, from the thread the intent which seems to be fairly clear is the OP wants to remove in full his on-going and future liability to the property and its repairs.  

Congrats on going out and playing with the numbers, I can see you've done your research.