There are so many unique strategies and techniques to real estate investing and that is one of the main reasons I am drawn to it.  

Tenants should always have "skin in the game" namely the security deposit.

I would remind him to clean and leave the property in similar condition as move-in for his security deposit to be returned.

I need to start shopping local banks/credit unions to secure financing for my (hopefully near future) rental property purchases.

We are both fortunate enough to have secure jobs with good salaries and flexible schedules.  

The ipod nano is small enough to fit in a tool pocket that can be closed so that it's secure.  

Is a security deposit required?

The loan was secured by 2 properties in Chicago.In the closing documents, there's an Escrow Agreement which says the private lending mortgage broker acts as escrow agent for borrower and lender to hold said Quit Claim Deed: (Escrow agent = private lending mortgage broker) with the following terms1.Borrower agrees to deliver to Escrow Agent an executed and notarized Quit Claim Deed running to Lenders for the properties2.

If you take 'adverse action' (decline them or request a higher security deposit) on an applicant, you should provide an Adverse Action Letter to the applicant (many templates/guidance online etc).If you don't have acceptance criteria and appear wishy washy, it may appear (at times) as discrimination -- even if you're trying to be nice...

Interesting technique that you have there - I do know his mail continues to come in at this address though.