Hello
@jeffreyj71 First and foremost i would do a factory reset on the device to make sure that all your personal information is out of the phone. Second i would call Rogers and have them remove the IMEI number from your device. This is a good thing to do just incase the next person that wants to buy it, can add the IMEI number on their account and get warranty or any troubleshooting they need done.
Other then that there is nothing else to do!