When a joint tenant transfers interest in a property, what type of interest do they grant?

When a joint tenant transfers their interest in a property, the new owner receives a tenancy in common interest. This is due to the nature of joint tenancy, which is characterized by the right of survivorship. When one joint tenant transfers their share, the joint tenancy is severed for that portion, creating a tenancy in common between the remaining joint tenants and the new owner.

In a tenancy in common, each owner has an undivided interest in the property but does not have the right of survivorship that joint tenants enjoy. This means that if one tenant in common passes away, their share can be passed on to their heirs, rather than automatically going to the remaining co-owners. Therefore, the correct type of interest granted when a joint tenant transfers their interest is indeed a tenancy in common interest, which reflects the change in ownership structure and the rights associated with it.