I took a look and hired a plumber to reset it with a new wax ring and everything is ok.

Also a cheap shower curtain liner and rings. 

There are 3rd ring suburbs with MLS listings still producing cash flow, with good schools and desirability factors.  

I don't know what lenders would do to test for occupancy, ring your doorbell?

[* Ring * * Ring *] Hello, Dad?

If your phone is not ringing you probably need to make a marketing change.  

I'd rather miss out on that $100 and not have to deal with the FBI over an alleged drug ring scandal, nor (which would likely be more common), haggle with the tenant over $5 that exceeded his $200 utility spending limit.You could say "$5 isn't worth arguing over", but understand that once you set expectations, you need to enforce them consistently or people in general will take advantage.It's really up to you though.

Occasionally stop by the tenant's home without warning, during the daytime only, and ring the doorbell/knock.

Haven't had one like this in a while:2015.04.28 @19:30 ADT - phone rings.

@Ronald RohdeFunny you should say that Ronald.I'm with a specialty tax firm, our phones are ringing with vigor from funeral home directors!