Maybe plow everything you own in to the stock market or gold until then so you aren’t losing money to inflation. 

Those 3.5% and below loans are GOLD at that locked in rate.

Is there anything that would prevent me from being able to do that other than chain of title issues? 

I will look chad up see if I can’t unearth some gold nuggets of wisdom. 

There are different "levels" of LEED; Bronze, Silver, Gold & Platinum.

The people that own this real-estate think they are sitting on a gold mine because they are waterfront property - and they may be, but seeing how these buildings have sit for over 10 years empty, I doubt it.  

I know I can get the information through the county recorders offices... follow chain of title through deed transfers, easements/ccrs/special rights would all be on the deed, right?

They are gold. 

In my opinion, access to the Multiple Listing Service is GOLD, and if you yourself have it, it’s even better!

They have legacy issues and until they break those chains and turn their lives around they will continue to have high drama lives and live hard in those units.