21 GCA § 13101
Trust Must be in Writing
View official PDF ↗No trust in relation to real property is valid unless created or declared. 1. By a written instrument, subscribed by the trustee, or by his agent thereto authorized by writing; 2. By the instrument under which the trustee claims the estate affected; or 3. By operation of law.
Reconstructed from the Guam Code Annotated. For the authoritative version, see the official PDF.