In addition, even if it were a long term lease that was month to month on a SFR in Riverside, there is no tenant protection preventing proper notice to vacate for any reason that the LL desires. 

Strictly speaking, for tenant monies (like refundable deposits) you should set up a separate account to prevent commingling.If it's rents and bills, I don't have a problem with using one account - AS LONG AS YOU HAVE A GOOD ACCOUNTING.  

Some courts are opening back up, though CARES Act may still prevent you from filing.

Let's say you learn more about these rules and it effectively prevents you from flipping houses.

This has prevented me from being able to purchase additional rental property.

Number 1: Get educated (REI education)You'll avoid many very expensive mistakes and probably prevent enough losses to pay for your education multiple times. 

This property was supposed to be ready by Feb/Mar but the virus prevented rehab and showings. 

The order makes a vague reference that it was created to prevent financial hardship from covid.

That prevents any single night parties from happening.What you had sounds like it was a large gathering.

Rerouting water is always the most important step for preventing water damage.