Default [Q] S4 I545 carrier unlock Help please

Ok since i have less than 10 posts I cant post in main device OS/Root posts etc.

Anyways I have a Samsung S4 Verizon I545. How to unlock it?

Gimme the link(s) to where I can download the ROM, software etc. And some steps on how to go about it. Also after carrier unlock/root can i do OTA updates?

I've unlocked two of iPhones before, so I understand the risks associated. Please try to help in simple english.

Thanks to XDA and thanks to any pupil willin to help.