The backyard does not provide space for that setback, and the homeowner wants to build the tool shed on the slope.I read that "Recommendations by a licensed geotechnical engineer may be used if a foundation investigation report addressing the reduced setback has been approved by the Department."

Or, on social media.3) Use a skiptracing service to determine if owner maybe living elsewhere in the area, a senior living facity or relocated out if the area, but still alive.4) Budget $1,000 for a private investigator to find your target owner and provide you the contact info. 5) If you aren't willing to risk the money for the search effort, then you definitely aren't ready  to attempt anything more risky like adverse possession. 

I stupidly responded to a Craigslist ad for REI, while investigating their spiel I stumbled on this site, and I am so glad I did!!

Or maybe I just watch too much Investigation Discovery Channel.But maybe ask an attorney about the legality of changing the name on a lease?

I recently found out that selling an assignment in Georgia is being investigated by our state ( selling real property not being on the title to another person)  -  it appears to be illegal without a RE agent license ( which I have anyway).At least there are options if you don't have the cash right now. 

Another option that can sometimes be relatively inexpensive is a private investigator, but make sure you're clear about your budget and expectations.  

Investigate everything at the onset.

DBPR was kind enough to send an investigator down and cover the topic: what constitutes unlicensed brokering.

I am an international fiancial investigator and president of the International Due Diligence Organization.  

(As I'm sure you've already investigated for research.)