This of course is county specific, but I know in Gwinnett they have an office designated for researching the estate owners information as it is all public or they have a subscription you have to pay where you can get access from home at anytime.In regards to your question about finding out about the owner, if listed on the tax assessors office as an LLC then go to the state website (sos.ga.gov) and look up that business, which would give you the registered agent as you mentioned.

@Alon Rokach Hi Alon, unfortunately by answering that question, it may be deemed as self promotional and that is against the rules of BiggerPockets when posting in the public forums.

Does buying single family homes for buy and hold near public housing affect vacancy, or property appreciation?

If you're just having friends, family and close associates as investors you could do a Reg D 506(B) but if you want to solicit the general public you need to do a 506(C) and you need the right exemption.

So with exception to the big publications, which links from would be great, my local efforts would be focused on earning links from other local publications.

Non-publicly traded REITs vs publicly traded REITs.

This use separates risk, since the public facing LLC collects and passes payments to the holding LLCs. 

@Horacio Gutierrez public sales records.

But are we talking a week before the county obtains and files it for public records.

I do work on the operational side for publicly traded companies, but plenty of good securities attorneys available in DFW as well.