rent receiving account change

[Yan Guo]

Hello, I'm pretty new to the forum. I'd like to share my experience of being a landlord and get help from the forum as well. 

This is my first question. I am planning to notify my tenant to deposit the rent every month to a new checking account. How to I notify them? Should I prepare a document with the new account, send to the tenant by mail and have her sign and mail back to me? Or it is OK by just notifying them by email? Your help is highly appreciated. 

Thanks 

Yan