But now with being decimated by Covid, I've actually made some concessions I'd never dream of in normal times. 

It's next to impossible to address in an online forum properly.To illustrate my point, you could be talking about a highly appreciated piece of vacant land in a desirable area or a neglected commercial property in an urban area decimated by Covid or a cash-flowing beach property etc. 

In the end it was the right move because California real estate was decimated in the following years.Now I see California in recovery & one of the most opportune times to invest in history.

As Che indicates, the big picture issues are going to make anything past the second decimal point largely meaningless. 

This includes bylaws, extra screening/approval of rentals/tenants, and HOA fees which can simply decimate returns.I know that condos can have lower prices, but in the few markets that I've really studied, the lower prices have not been low enough to offset the limitions mentioned above.

Investing wise, if you play by the numbers, they don't change much market to market except the decimal place gets moved to the left or to the right.

This would seriously harm you if you were leveraged.Again if you really consider this (hyper-inflation and resulting complete breakdown of society) to be an eminent threat, you should be investing in some land to "bug-out" to and learning how to survive the collapse of civilization as we know it.As a rule, inflation makes the rich richer and the poor poorer and decimates the middle class.

Unfortunately this is a scam that runs rampant through the rental industry and a large part of the reason why Craigslist has quickly been decimated by more credible competitors (name Facebook) where the poster is required to have a public profile @Joe P.I will say that @Troy Sheets' and @Marco Anemone's situations sound a bit more extreme, but honestly it's probably just an example where the scammers "won". 

Retail space has been decimated.  

. $280k x 5.22% = $14616 (the other $24 is just a rounding error from not carrying out the decimals)There is literally no other correct way to calculate cap rate.https://www.biggerpockets.com/...