Floyd Mayweather Jr. filed a lawsuit in Manhattan County Supreme Court on Thursday evening, accusing Jona Rechnitz of stealing at least $175 million from him in what the complaint calls a yearslong fraud built around real estate, jewelry and a Gulfstream G-IV private jet.

The lawsuit says the losses came through a multi-year scheme carried out with the help of two associates. Mayweather, whose 50-0 record and five world titles made him one of boxing’s biggest draws, is now asking a court to sort through what he says was a relationship that turned into a financial drain.

Rechnitz began cultivating that relationship in 2017, after being introduced to Mayweather by a mutual acquaintance. The complaint says he presented himself as a highly sophisticated real estate investor and, by 2024, had taken on the de facto role of Mayweather’s investment manager, real estate adviser and banking liaison. Last month, the two men were jointly sued for allegedly failing to pay a $100,000 private jet bill after a flight to the Caribbean.

The filing lands after a public display of trust from Mayweather just months ago. At a New York real estate forum in May 2025, he said, “I trust Jona – not just 10 percent, 20 percent – 100 percent,” and called him “my friend.” He also said, “Whatever his case was, he dealt with it like a man, and we’re going to continue to do business.”

That confidence now sits beside a record that the complaint says Mayweather did not know when the relationship began. Rechnitz was brought up on federal bribery charges in 2016 and later sentenced to five months in prison and five months of house arrest. The filing also identifies him as someone with a fraud conviction and a civil fraud judgment in a case involving Hollywood producer Victor Noval, and says he now lives in Southern California.

Mayweather’s complaint says that background mattered because he had no formal post-secondary education and no formal training in finance, accounting, real estate or commercial law. That, the filing argues, made him dependent on Rechnitz as the pair struck deals that allegedly moved from property to luxury goods to aircraft. In the end, the case presents a simple question for a judge: whether the trust Mayweather described in May was the product of a successful business relationship, or the foundation of a fraud that cost him at least $175 million.