People wait for a crash and then the same people get worried and wait for recovery.

We accepted this job in CA, with a crash course in renting homes, we didn't have enough in our savings to cover 3 months' rent which is recommended (learned this after the fact) and put a security deposit on the home we are renting in CA.

Yes, that is what happened in the 2008 crash. 

So to those smarter than me, is this dollar crashing a likely thing to be happening now and is it relevant to property values?

In my mind wishing for depressions and crash's is just very ignorant and short sighted thinking.

The last big crash saw a 19% average dip in real estate prices that wasn't recouped for 6 years.

I can count 6 major wholesalers in Phoenix (why Phoenix I'm not sure, I suppose because the crash was so bad they had a lot of inventory to work with) Each of the major 6 state that they spend $50,000 to $100,000 a month in marketing and advertising.

The property will appreciate regardless or the market could crash you don't control that piece.

I am not an electrician but getting a crash course in all this.I've had 2 very different electrical quotes and plan to get more. 

Lets say there is some sort of market crash, like COVID where renters stopped paying.