So, who does...I've gone this far down the rabbit hole.

They get them selves stuck in a 20k hole and they try to dig them selves out by getting other people to join. 

Your plan seems to be over-simplified and has many holes in it.

My question is does this wooden retention wall constructed for the city catch basin rain drainage water not to enter into the property or does the retention wall support the foundation of a building which is around 20 feet away.

Since Portland is such a tenant friendly city, I’m wondering if there is a loop hole or if I can choose the occupied unit to move into in an effort to rent the other at market value?

. - more so trying to build relationships and following the rabbit hole that leads us down.With regard to social media groups, is this primarily FB Groups?

Rotting window frames, unsafe electrical issues, a tub and sink that didn’t drain properly, a promised dishwasher that turned out to be broken and unusable, a driveway with tons of pot holes so deep that they could have easily damaged cars, and much, much more.

Good thing I caught their junk before I dug a deeper hole for myself. 

The probably of it being a worst case is generally pretty low.If you have problems under the concrete, get serious about breaking a hole.

-asphalt parking/driving(currently dirt with massive pot holes)(awaiting estimate form local company)-Individual metering (previous hotel, 3 different buildings(2 doors, 7 doors, and 6 doors), all on one meter)Any advice or things to consider are appreciated.