18 GCA § 31601
What Dealings with Debtor Exonerates Guarantor
View official PDF ↗A guarantor is exonerated, except so far as he may be indemnified by the principal, if by any act of the creditor, without the consent of the guarantor, the original obligation of the principal is altered in any respect, or the remedies or rights of creditor against the principal, in respect thereto, are in any way impaired or suspended.
Reconstructed from the Guam Code Annotated. For the authoritative version, see the official PDF.