A separation and an annulment are both alternatives to getting a divorce. However, there are significant differences between the two. If you are considering both options, it is important to understand how they differ and their legal implications. For example, an annulment views the marriage as if it never existed. Once the annulment has been finalized, both parties can remarry or enter into a domestic partnership with another person. A legal separation is similar to a divorce in many ways, although the couple remains legally married. This means both parties cannot remarry or enter a domestic partnership until they finalize a divorce agreement.