21 GCA § 1215
Joint Interest
View official PDF ↗A joint interest is one owned by several persons in equal shares, by a title created by a single will or transfer, when expressly declared in the will or transfer to be a joint tenancy, or by a transfer from a sole owner to himself and others, or from tenants in common to themselves, or to themselves and others, when expressly declared in the transfer to be a joint tenancy, or when granted or devised to executors or trustees as joint tenants. No joint tenancy shall be created except as herein provided.
Reconstructed from the Guam Code Annotated. For the authoritative version, see the official PDF.