The podcast you mention is referencing (i) Freddie Mac Small Balance Loans ("SBL"), and (ii) Fannie Mae Small Loans, which are essentially government-backed CMBS loans. 

Some areas have conservation easements , you may cut a deal with the local government where if you put a restriction on the property to let it go natural they may pay you . 

Current U.S. government debt $33T.  

Informative read about the high amount of ADU's being built in Los Angeles, the impacts they're having on the neighborhoods, and what local government is doing to preserve the "look and feel" of neighborhoods with the change in housing.

Each designated LLC has its own governing documents establishing its members, managers, and membership interests.

You can do your own research and see what the Government gives you for Tax-deferred and Tax-free Sales of multi-family properties.

The problem with super high cap rates is newer investors don't realize the headache factor/risks associated and think they simply print money. 

Any institutions you can buy it with or do you have to go to the government website?

They attend networking events, build websites, print business cards and worry about stuff like LLC structure and taxes instead of learning how to become a deal maker.

If they've been there 10 years, you have a good idea of how well they take care of the place as what you saw when you viewed it would reflect that.For state laws-google it and you will find a government website with the info.