Can I replace a steward in Hearthfire?
Solution 1:
The Dismiss Steward mod allows you to dismiss stewards. I admit I haven't tried it yet but if you really want Lydia fired, I recommend making a save, downloading the mod, and giving it a try. Just make sure that you have a save from before you installed the mod just in case something catastrophic happens.
Solution 2:
There is but one way and its to slay her, she cant go back to breezehome because her home has been changed to your other house, if you kill her, you can recruit new stewards in after her, but if there is a way to return her there, i dont know of it.
Solution 3:
Yes you can, kill her and use resurrect on her. Get someone else to be your steward.
Solution 4:
The only option to replace a steward is to kill them or disabling them, then bring another follower to your house and ask them to be a steward. The is a mod called Dismiss Steward Mod which allows the option to dismiss your steward and get another follower in your house to become a steward. These are the only possible ways to replace a steward if you need to.