Houses that Lady Grey has lived in do not have the sell option. The only options available are "Enter Redecorate Mode" and "Set Budget". Redecorating doesn't help. We cannot sell the homes, rent them out, or use them as marital homes, and Lady Grey doesn't recognize these houses as her's once you've moved her to a new one. They're pretty much useless aside from being a place to crash for a bit.
So far, one house in Bowerstone Marketplace is bugged, as well as Serentiy Farm, and Brightwood Tower. I finally installed her and family into Fairfax Castle, but would like to put some of my more high class wives into some of these places that are bugged.
Is Lionhead working on a solution for this? I hope so, I absolutely love the game!