However, the only reference to Homeland Security I’ve seen is a post of a seeming “wish list” of investigative agencies by the OP in the Norada thread, who, if you read his posts, is obviously less than a reliable source of information and consumed by rage.  

I’m trying to convince him that listing the cabin on Airbnb could be a great source of passive income.I wanted to reach out to the BiggerPockets community for advice.

Local investors and agents will also have helpful recommendations—they are two of the best sources for finding a reputable local inspector.

Typically they are not eligible for traditional financing which implies other funding sources (HML, private Monet, self funded, etc).  

He just hosted a get-together - a Family Reunion - where we took a deep dive into various aspects of BRRRR, how to source deals and a look at how he is rehabbing the hotel we were at that he owns.

they scream.But the blockchain is open source and anyone can start a blockchain-based crypto currency.  

The engineer can help with this estimate, but local contractors are the top source for getting this info. 

IE if you are wanting to wholesale which I don;t reco today, its too hard, you want a list of high equity owners BUT BUT the value is in figuring out a source of stress, a reason why the owner is on the virge of wanting to sell. 

What sources and websites do you guys use?

Different platforms use varying data sources, algorithms, and criteria for comps, so discrepancies are common.