Tenant 2 still has a lot of belongings in their room, clothes, electronics etc. 

Second exception: electronic payments.

My tenants don't all have a way to use the electronic payments.

But yes, I will talk to them to encourage them to open a bank account and pay me electronically.

Finding them post eviction also difficult @Jeffery H:   Yes, I have a lease that was signed 'electronically', but NOTHING else - no social numbers, birth dates, employment, references - NOTHING. 

No need for running wiring for each individual unit, a visitor pushes the button for the person they are visiting, the unit dials the number that is programmed and the resident can hit a button to unlock the door (assuming there is already electronic locking hardware in place).

Probably not as applicable for Section 8 housing but I use Chase Quickpay for my tenants, allows them to electronically send money instantly using only my email address.

I use the Schlage electronic door locks and I instantly deleted all existing codes, even the current landlord code.  

Could sue your input...I have been a Small-time landlord for sometime in SFR's, and am looking to stop taking rent payments via Cashier's Check/MO's.I would like to know:1)  Your preferred electronic method/system for collecting rents.2)  If you know of any systems that I can use that record payments for the sake of letting rent payments count toward credit scores (i.e., can help to build a tenant's credit score by paying on time, etc...)Thx!......

I use a Buildium property management subscription to manage rent collections, so every tenant pays electronically.