Do you still accept ONLY checks for rent? Why? Why not?

[Ramsey Rimkeit]

Do you still accept checks for rent? Why or why not?

The property management company I work for refuses to accept any form of electronic payment. Although they were unclear on the reason for this in response to my last request ("a plethora of issues"), I was told last year that it can complicate the eviction process.
I want to know if it is common for landlords to only accept checks and if there are any legal reasons for this.

Personally, I feel like paper checks are antiquated. It's the equivalent of using VHS tapes. But maybe there are good reasons for this?
I would appreciate some feedback! 
Thank you!

[Nathan Gesner]

My #1 preference is ACH. Then money orders or cashiers checks. Then personal checks. Finally, we accept cash but it has to be paid through a vendor for a fee and then gets sent to me via ACH so I'm not technically accepting cash in my office.