Ryan Serhant founded two apps that didn't take off but raised $45 million to help fund his third. Here's what he did differently.

Ryan Serhant believes his new app will make day-to-day work easier for real estate agents.

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• Ryan Serhant's firm raised $45 million from capital firms Camber Creek and Left Lane Capital.
• Much of the money will go toward growing the firm's AI platform S.MPLE.
• S.MPLE isn't Serhant's first app. He tells BI how he turned past failures into success.

Despite Ryan Serhant's stand-out 2024, he hasn't escaped failure. In fact, after attempting...