7 GCA § 14107
Procedures for Several Defendants
View official PDF ↗Where the actions is against two or more defendants jointly or severally liable on a contract, and the summons is served on one or more, but not on all of them, the plaintiff may proceed against the defendants served in the same manner as if they were the only defendants.
Reconstructed from the Guam Code Annotated. For the authoritative version, see the official PDF.