>>>> Possibly add a quest which comes after you completed the quests for legion, or stormcloaks. Mayhap the courier comes with a letter which asks you to get ride of enemy soldiers that still lingering around which have qonquered a castle/fort. Once completed, one of the jarls stewards which sells houses normaly appear in your house in (Homeplace of legions or stormcloaks) with simple text (Or you can voice edit yourself and do it more immersive). >>>> >>>> How I see you can do this simply is: -Moving the forge guy from riverwood to your castle/fort to your castle/fort. (Move hole family?) -Same with market and such (But not moving, but copying theim or making new NPC's, eitherway you most make sure they only have the option where you buy, or they might give you quests which are not part of their character as a NPC of YOUR castle. -Guardhouse is simple I believe, create new NPC's, take one of the existant guard's armour and remake it do your liking (Make new item) then replace the bandits/npc's which was there in first place (Npc's shouldnt walk away then since they use the path the bandits used, which is in that fort/castle) -Housing should be simple, simply copy the house over. -There is a guide out there on how to place walls and such, simply use that in the modd. (Bat file which does it automaticly since its console commands?) (All of this ONLY activates once the quest is complete) Problems I see with this: Time to copy houses (if possible) , time to remove npc lines/quests they give, replacing walls and all with new ones (Remaking hole castle) >>>>