Joseph Nantomah, a 49-year-old Nigerian national known online as “The Black Mentor,” has been sentenced to four years in U.S. federal prison for orchestrating a $2.7 million investment fraud scheme targeting Nigerian immigrants and church members. The sentencing, handed down by U.S. District Judge Lynn Adelman, also requires Nantomah to pay restitution of $2,762,798.37 to his victims. Following his prison term, he will serve three years of supervised release and faces the possibility of deportation from the United States.
Nantomah entered the U.S. on a visitor’s visa in 2016 and quickly built a fraudulent online persona, presenting himself as a successful real estate investor who had amassed a multimillion-dollar portfolio. Using this false image, he hosted conferences and classes under the banner of “Wealth Flow,” where he claimed to teach others how to achieve financial success in America. He leveraged his cultural ties and religious connections to gain trust, convincing over 39 victims—mostly Nigerians—to invest money in his alleged real estate ventures.
According to the U.S. Department of Justice, the scam ran from May 2020 to December 2024. Victims were promised high returns on their investments, but in reality, Nantomah had no legitimate business or real estate expertise. Instead, he funneled the funds into a lavish lifestyle, purchasing private jets, luxury cars, expensive jewelry, and even a yacht. He also spent significant sums to enhance his fraudulent image, including buying honorary doctorates for himself and his wife and paying celebrities to attend his events.
Born on December 31, 1976, in Borokiri, Port Harcourt, Rivers State, Nantomah previously claimed to have founded a project management training program in Lagos that trained over 3,000 bankers. These claims, however, were not verified and appear to be part of the broader deception used to build credibility. His criminal actions severely impacted the lives of his victims, many of whom lost life savings and retirement funds.
Judge Adelman emphasized during the sentencing hearing that the prolonged nature of the fraud, the substantial financial losses, and the emotional toll on victims justified a significant prison sentence. The case highlights the growing threat of transnational investment scams involving Nigerian nationals operating abroad, often exploiting community trust and aspirations for prosperity.
This conviction sends a strong message that financial fraud, especially when it targets vulnerable communities, will be met with serious legal consequences. As authorities continue to monitor and dismantle such schemes, the case serves as a warning to would-be scammers and a reminder to investors to verify opportunities before committing funds.
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