If your gift or inheritance is understood to be non-marital property, and clearly documented to indicate this fact, there should be no question as to who owns what. However, if at any point the gift or inheritance in question became "co-mingled" with your marital property, your spouse could call the ownership into question. This most often happens when a financial award or inheritance was deposited into a joint account, or when a family home that was either a gift, or part of an inheritance, became the home in which you and your spouse resided. In either situation, your spouse could contend that the item(s) in question became marital property the moment they were used for the good of both parties and your children.