ALT Shareing/linking

4th time trying to trim this down to meet that 1000 word limit. So here we go.

Want to trade between my alts.
Paying to be able to have alts.
I am playing my alts not just luggage.
First mmo out of several that does this.
Multiple ways to do this easily like shared retainers or add to friend list.
Put a lot of effort into both alt's skill.
Don't want one character that does everything cause I like several races and want to play them.

That's basically it. Just want to enjoy what I am paying monthly for. Something that free to play or one time pay mmo's give freely.

Sorry for how this is written. Just to frustrated having to edit to be short cause of working limit. I am not a limits type of person.