Marriage has nothing to do with this. First, all listed owners on the property deed (of which I assume your bride to be is not listed) must have lived in the house for at least two of the last 5 years they owned it, in order to qualify for the exclusion. So while you may qualify for the $250K exclusion, the other person will not. Being married to you is irrelevant.
In some community property states, once married you both have 50% ownership of everything. So listing the spouse on the deed is not necessary. But it does make it easier if audited on your exclusion claim.
