Are there any governing bodies or agencies I should reach out to?

Yes, real estate is among the best ways to grow wealth but I don't think it's smart to invest money that will be needed in roughly 6 months in a physical property unless you know for sure you'll be able to refi and pull that money out when you need it (which you probably can, but interest rates are rising so you may end up losing money in the long run).

The county property tax website should have owners name listed, I'd check there and with city rental licensing department could be another source.. for physical address..

My personal opinion would be to physically live in one of my properties, but that preference is solely an emotional preference backed by no data.  

Have problems with tenants and property manager.  Evicted 4 tenants and looks like endless repairing.... Used the NREIG before, but nothing can be covered.  (Court fee, damaged properties from evicted tenants, lawyer ...

Starting off you have to make sure the piping or wiring physically allows it and guess what that is all behind walls/floors/ceilings so even if it is possible you may not be able to tell.Then let's say it is fairly easily identifiable like your example of electric circuits.

Related to the above, have you physically seen the property?  

I'm looking at the application for Tennessee and it needs a Registered Agent with a Tennessee physical address.  

Does anyone know how to convert the parcel ID or legal description into a physical address?

When it comes to collections, you want to document (1) asking rents, (2) loss-to-lease, (3) physical vacancy, (4) concessions, and (5) bad debt / write-offs.