What term is used to describe the requirement for all owners to acquire title from the same source?

The term "Unity of Title" is used to describe the requirement that all owners acquire their title from the same source. This concept is essential in real estate because it ensures that all parties have a legally recognized claim to the property based on the same initial ownership document or deed.

In joint ownership situations, such as in a partnership or co-ownership, having a Unity of Title means that each co-owner's interest in the property stems from the same transaction or agreement. Without this unity, the relationship between the owners can become complicated, leading to disputes over ownership rights.

Other concepts, like Unity of Interest and Unity of Possession, refer to different aspects of co-ownership. Unity of Interest implies that all owners have equal rights and interests in the property, while Unity of Possession specifies that all co-owners have the right to possess and use the entire property, rather than specific portions. Tenancy by the Entirety is a specific form of ownership available only to married couples that also involves unities but does not specifically highlight the requirement of acquiring title from the same source. Therefore, the correct choice is "Unity of Title."