Billionaire Sam Altman Claims $27 Million San Francisco Mansion Is A ‘Lemon’ ForbesSam Altman sues builder of $27 million mansion Business InsiderOpenAI CEO Sam Altman’s $27 million mansion is a ‘lemon’ with a leaky pool, lawsuit alleges The VergeBuyer of luxury home on S.F’s Lombard Street claims they bought a ‘$27 million lemon’ San Francisco ChronicleSam Altman sues after buying $27M ‘lemon’ mansion on Lombard Street The San Francisco Standard