Sometimes, when we're handling a real estate closing, a seller wants to know why their spouse has to sign the new deed if the spouse was never on the original deed.
In North Carolina, when a man and woman become husband and wife, the law gives them some automatic rights in each other's property. One of those is the right receive a share in a deceased spouse's estate. This means that, ordinarily, your spouse can't entirely write you out of the will. Sometimes this right can be overridden by a properly done prenuptial agreement or separation documents, but it stays put otherwise.
The spousal right in property happens automatically as soon as you marry, and cannot be taken away by the other spouse just by deeding the property away. For instance, if only a husband signs a deed over to someone and then dies, his wife could still be a partial owner of the property along with the person the husband deeded to. On the other hand, if the wife also signs the deed, then she voluntarily gives up any rights she has in the property.
Any time an attorney is conducting a real estate closing, that attorney will need to have both the husband and wife sign the deed unless a valid pre-nuptial agreement, separation agreement, or other document showing the other spouse no longer has rights in the property is presented. Even then, some lenders tend to be overly cautious and still will insist that both spouses sign.
This answer does not cover all the issues that may come up about spousal rights in property. If you have other questions or comments, please post.