Anyone washing cars to raise money...someone filling up water jugs, or watering newly planted forests nearby?  

At least while I'm trying to launch my wholesaling career.

I invest $5-10K per deal in passive real estate syndications (which you can do as a member of an investment club, and the precise reason we launched our Co-Investing Club).

Now if you like the idea of having a second home, you have the time and energy to devote to launching a short term rental - you can handle guest complaints and questions - find a designer - etc - then do a STR - but know the costs upfront can be substantial and cash flow is usually not consistent as there are off season months in every market - plus saturation.

I don't need them launching me into the culture war to boot... 

I assume it is if its more an ArBNB vacation type area At first I thought "wow, what's the chip on this guys shoulder where even when blatantly wrong he's freaking out when the world doesn't bend over and launch a parade for his every ignorant statements, with skin as thin as rice paper for any correction.". 

The treatment of the unit by the tenant.If a tenant has lives there for 20+ years and there are no updates and they smoke, you can have to renovate every square inch + appliances + front and back hallways, you can get over 30k easy.If the tenant trashes the place, same thing, you can spend 30k on a newly renovated place.With labor cost and material cost sky rocketing turnover’s are becoming a major issue for our clients and are sucking up cash flow.We are starting to do things like waive rent increases for good tenants, increase habitability by adding in suite washer and dryer, and whatever else we can do to get 3-5 year tenancy.

Not only will we behind them launching our rockets, but their rockets are three times faster than ours. 

This business launched three years ago.

The only thing I can think of that can truly cause a crash is if someone decides to start launching a few nukes in the wrong direction.