I checked UESP about consequences of NPCs after becoming spouses or stewards, but it's not very clear to me. I mean specially those npcs who are more than just simple followers and that can be married or set as stewards.
For example, I was going to marry Farkas and make his brother as our Steward... But what will happen to their trainer option? I read that spouses keep it, but there're no details about the steward. Also, the 2 said npcs normally give radiant companion quests.. Will they still assign me tasks if I marry/make them Steward? If not, will Aela cover ALL kind of tasks or she can only assign me a few types only?