Diamond Dun-Properties Ltd v Zhao

Decided: 2026-09-28. Docket: 2501-0103AC. Citation: 2026 ABCA 307 (CanLII). Contracts — Guarantees and indemnity — Forgery — Whether a forged guarantee and certificate are nullities — Impersonator forged purported guarantor’s signature — Purported guarantor did not appear before the lawyer — Forged document treated as a nullity and unenforceable — Summary dismissal of claim granted — Appeal dismissed | Statutory interpretation — Guarantees Acknowledgement Act — Certificate as evidence — Whether s. 5 makes a facially compliant certificate conclusive proof in a forgery case — Interaction of ss. 3–5 and legislative purpose — Court must admit certificate meeting s. 5 criteria, but not automatic liability where certificate and guarantee forged — Appeal dismissed | Contracts — Equitable principl