I know our title plants in the metro areas of Or Wa are all off shore and its common to order title one day it gets worked up in the Philippines at  night and back to Or the next day or 2 days.. but this one really shocked me thats why I thought to post about it.

Rent on a 4 bedroom place may be $5000 monthly ($12,000 in Manhattan); rent it by the bedroom for $1500 per bedroom with access to all common areas.  

Their most common threat is a security deposit dispute.

But always complaints about guests (residents) leaving common space a mess, some resident gets mad they have to clean up...   

A famous quote: Do unto others as you would have them do unto you” is commonly known as The Golden Rule.

It’s not as common, though cause it takes a lot more work

This is Occupancy Fraud, a very common type of mortgage fraud. 

I still have clients buying in Vegas, but it's not as common due to cashflows being hard to come by with the traditional 25% down financing.  

But usually for a tenant occupied it's like $90-120 per monthI've noticed a lot of multi-family buildings are pre-WWII housing inventory - are there restrictions or issues common with that (historic districts, crazy high utility costs, etc)?

This is not overly common, but if you have a concern the worst they can say is no. 4.