Late Fees Not Being Paid

[Jason Lee]

Hello...

I have a tenant who is not paying late fees.  He pays late always past my 5 day grace period.  Sometimes I have to mail a 3 day pay or quit, and he pays up.  My lease states clearly a 50$ late fee, and I even sent a copy of the bank statement explaining he is 250$ behind in late fees.  The property is 3 hours away, and other than this he is not a problem. 

I am not going to try eviction over it mainly because it is difficult to find a tenant who will agree to do ALL repairs, and maintenance themselves on a rental.  Just wondering if you guys have any advice.  I even sent him an ATM card so he can deposit rent directly into the ATM which accepts cash.  I have been thinking in the back of my mind well he won't have much of a security deposit left when his lease is up.  Perhaps that is an option when he signs a new lease I request another deposit?  It is 750$ monthly with $750 deposit.

Thanks.