This Southern Highlands mansion is listed for $25 million by Ivan Sher. His new brokerage was r …

This Southern Highlands mansion is listed for $25 million by Ivan Sher. His new brokerage was r ...

This Southern Highlands mansion is listed for $25 million by Ivan Sher. His new brokerage was ranked No. 1 last year for luxury sales in the Las Vegas Valley. (IS Luxury)