That takes some detective work on your part or literally pay a private detective to track down the heirs. 

Be sure to coordinate that with the detective looking into the case so the detective can be there as well.  

So much so she would puke if any mold was detected. 

As to the screening process, I think yes they are good but we are in the exponential growth phase for crowdfunders and the risk of not detecting a bad sponsor or bad deal is rising quickly.

Most scam artists aren't going to stick around long enough to generate high post and vote counts, since most of them depend on a "stick and move" strategy to avoid detection or civil/legal trouble.

It is very easy to open a fraud report and have a detective assigned in most cities.

Instead of playing detective, when she leaves just charge her for smoke smell cleaning from her deposit when she leaves.  

The most I know is:It seems the police detectives and Attorney General are really looking into them.

If we can develop our skills for detecting market forces and predicting trends, then anything cash flowing today, has upside equity potential tomorrow.

Like any landlord, no screening company has a magic wand that can detect false information on an application.