Make sure you check for things like gated community, pool, ranch, two stories, a finished basement, acreage, etc.

Imagine that they strike a deal with the next-door neighbor for an exchange - "you can use my pool if you fill my pool from your hose, with your landlord's money!"  

Just be nice about the situation and approach the tenant and let her know that you will be taking the unit out of the rental pool for your personal use. 

Hey yall....sunny Orlando here.

I took a chance earlier this year on a property I bought for $180k...4/2 with a pool...double the rehab costs I am used to...big project. 

-Tenant left behind a pool (against the lease) a BBQ, dishes, and a yard waste bin filled with trash.

Keep going up and up until you have a nice cash pool to dip into.  

Problem is the area is one I don't like, bleak job growth, low class, challenging tenant pool and needs really good, strict management.

However, junior analysts at ratings agencies didn't look very deeply into these instruments and reasoned away the risk by saying that a large enough pool would mean that even if 1 or 2 borrowers defaulted, the overall security would still be fine. 

This attracts a lot of out of state investors who think that the low barrier to entry and high tenant pool equates to high cash flow at double digit rates as it would appear on paper.