Help building my GLA

[syntaxlies]

Sorry but I forgot to ask, can I level all the jobs to 50 with one character? Like there isnt a limit or something like that?

correct, there is no limit.

if you are dead set on paladin then go for it but if your looking for more party's id lvl lancer/drg or archer/bard. they have always been the most OP classes and usually dont have a hard time finding partys for endgame stuff. Since there is usually not a need for more then 1 tank in a party it will be more limiting.

also youll lvl them faster since they kill faster.