These are the three zipcode that I am eyeing on right now : 73128, 73170 and 73135(I think this is near the AFB).  

Similarly, if you put several Class D tenants in a Class A 4-plex, what do you think will happen to the property?

Nobody really thinks about Northern Nevada and have slept on it for quite some time.

I don't think you need to open a direct California LLC. 

I didn't think there were any deals left in Brooklyn!

For a vacation rental, I could see people thinking they look dirty / streaky. 

@Albert Gallucci as many have pointed out, in the commercial space of 100+ apartment buildings and offices, property classes have some pretty decent industry standards.We started applying these to 1-4 unit properties around 10 years ago, which you can verify on our blogs, because we saw too many newbie investors not properly taking into account things like, neighborhood status, tenant pool, property condition, etc.Unfortunately, there's no industry standard for this, but you can use some basic logic to think your way through your own Classifications.

I think ultimately, one thing I've learned is how quickly economic conditions can change.

I am thinking ai Underwriting. ai web connected to scrape R.E. listings. ai learning off historical data of what signified a "good" market to invest in. 

Quote from @Peter Walther: I think you'll find most, if not all title insurers, will require the DIL to be dated and executed subsequent to default in order to insure.