It is only split between the owners--that is,the people on the deed. Other persons have no right to it, even spouses. If there three people on the deed, the profit is split 3 ways. What they may be confusing is that their husbands would (if they divorced) have a right to part of *their share* of the property or proceeds, but the fact that spouses may have a claim against their spouse's share does not increase their spouse's share in the first place.