I normally go into a deal telling a borrower to expect 70% LTV and then if the appraisal comes back suburban then we can bump up leverage. 80% LTV is typical in suburban areas and 70% is typical in rural areas for DSCR lenders.

Therefore, I wonder if an earnest money deposit of $50k is normal for a newly built single family house? 

Nobody is using bitcoin to buy and sell real estate in normal situations. 3.

And beyond any realistic worst-case scenario, in my mind I would rather sell my own house and sleep in the car, before one of my investors would lose a cent.

Normally, I would agree with you on that statement. 

It is normal to get cold feet but the main thing is to do the best due diligence you can do prior to going under contract-  "Pre-DD". 

I think it depends on the market.. they approached me on a furnished rental I had in Vegas (Summerlin gated community A class)  We got basically double or a little more of the normal rent..

Quote from @George Goldstein: You know how when you buy a used car from a private seller you tell the seller to say he sold it for $3000 instead of $18000 so your dmv tax is lower?

At isle vista, my son skate boarded to his parked car because he sometimes was blocks from his residence.  

This needs to be highlighted in the lease and acknowledged by them.Security Deposits: You can’t use their security deposit for routine cleaning, but if they leave things in bad shape beyond normal wear and tear, it’s fair game to deduct cleaning costs.I’d start by having a straightforward talk with them about the importance of keeping things clean for health reasons and property preservation.