I find it's good to keep the power on for the refrigerator; otherwise I'd have to clean it again prior to another tenant moving in.And I like to keep at least one light on when a unit is empty to give the impression that it isn't (empty).  

Are you including cleaning of common area, repairs, pest control, and landscaping under maintenance?

You will have to clean that up yourself.

I have application with clean background checks and credit score of around 680Income to rent ratio is 2.5.I have asked for a consigner.However I am wondering if There are any other options worth pursuing to mitigate the risk - such as ask for 3 months rent as deposit instead of one month ?

It's probably a lot cheaper for you to help the property manger to keep the place bug free and clean for a few more months than it is to have a court battle with an uncertain outcome.  

You need to service them spring and fall, including filling or draining the pans, cleaning the pans and vents, replacing the pads, ideally every season, and lubing the fan and the motor.

The question is:When purchasing properties on Hubzu, are you guaranteed clean title at close? 

I clean homes and met a guy who's a Real Estate investment Analyst, particularly in the realm of industrial and commercial real estate.

Remove carpeting, furniture, loose debris and broom clean.

I still think you could leverage some subledgers to clean up the main ledger and make things more transparent but if what you have works for you then awesome.