Here’s a list of Galaxy Note 2 stock rooted ROMs you can install using CWM or TWRP recovery.
If you are not returning your phone for warranty and want to simply run stock ROM with root, this is the recommended route as it’s easy to install using custom CWM or TWRP recovery. Also, you will be able to keep your custom recovery after installation.
AT&T Galaxy Note 2 SGH-i317 Rooted Stock ROMs
Download Note 2 rooted stock ROM for AT&T Galaxy Note 2 SGH-i337 (MC3 firmware) – Credits