15 GCA § 2901
Gifts Before Death as Ademptions; When to be Taken as
View official PDF ↗Advancements. A gift before death shall be considered as an ademption of a bequest or devise of the property given; but such gifts shall not be taken as an advancement to an heir or as an ademption of a general legacy unless such intention is expressed by the testator in the grant or otherwise in writing, or unless the donee acknowledges it in writing to be such.
Reconstructed from the Guam Code Annotated. For the authoritative version, see the official PDF.