Tenant refuses to use online system that I want to switch to.

[David J.]

I have been going crazy with a disorganized mess. 8 rentals and everyone pays different ways etc. 

I decided that I want to set all my rentals up on Cozy.co and manage them better. 

So far I really like the system and my tenants do to. 

However, I have one tenant that freaked out and called me yelling telling me "You can't bully me into joining some website that I don't want to join". ... " I will continue making payments and delivering to your bank account"

I really don't want to manage things any other way though. Should I just give her the boot?