Consider checkbook control.   

I abhor rent control and that seems to be the direction they're going.

If all else fails, i'd look at the local laws to see what type of escalation is possible and have them take it from there.It's unfortunate for your tenant to be going through this but ultimately the situation seems to be out of your control considering you've already sought out a resolution on their behalf.

. :)A limitation system can use email addresses and there are possibilites to check if applications with different email addresses come from the same computer/device.

For Commercial RE, we use Crexi, Loopnet and Brokers that control the markets. 

Hard Money lenders prefer first lien positions during the rehab portion due to the enhanced security, control, and financial stability it offers.

I lend money privately and would never consider this as it is dependent on things out of my control (permits, neighbors, you being a good host, rental demand etc) I sell a ton of STR that are in actual resort communities and have great amenities and they are all  competing for the same guests, I can't imagine that there is a need/demand for this type of unit.

buck stops with meindex funds and REITs: low control, high liquiditysyndications - ? 

More people probably looking in the cheaper/median priced areas as well with inflation kind of hitting peoples wallets more the last year or two.I think updating the units and being more aggressive on price is really all you can do since we obviously aren't in control of the economic factors.

With the whole rent-control thing: I wonder if Newsom sold his fancy home in Northern CA would he charge as much as the market would bear, or would he give a substantial break to the next buyer?