He previously served as a Clinical Professor at Cornell University and the University of San Diego and is widely recognized as a leading testifying expert in complex financial matters. Currently, Mr. Marin focuses on expert witness consulting while actively managing private equity investments, drawing on decades of leadership across the finance, investment, and venture capital sectors.

Mr. Marin was previously a senior executive at three major financial institutions; Bankers Trust Company, Deutsche Bank and Bear Stearns. His initial career spanned corporate finance, sales and trading, futures/options, derivatives, structured products, emerging markets, processing, and several other disciplines. Later in his career, he focused on building and running large asset management businesses in both the traditional and alternative spaces and in the institutional and high net worth markets. He also served as Chairman and CEO of AFI (USA), a major distressed commercial and residential property developer, for whom he restructured over $2B of liabilities.

He has been a successful financial entrepreneur, involved in founding several venture capital firms (Beehive Ventures and Green Visor Capital) and a hedge fund (Ironwood Global). He served as CEO of the New York Wheel, a $650 million development project. He was also the CEO of a start-up scientific research & development company working in the areas of hydrogen and ammonia production.

Rich is a retired Clinical Professor from the Cornell's Johnson Graduate School of Management where he taught on topics such as asset management, alternative assets, retirement and pensions, and project financing. . He also taught for several years at University of San Diego. He is Chairman Emeritus of the Johnson School’s Advisory Council and served on the advisory boards of the Cayuga MBA Fund, the Parker Center for Investment Research, Cornell Financial Engineering and the Big Red Venture Fund.

He was elected to the Johnson School Hall of Honor in 2001. He has a BA in economics and government and an MBA in finance from Cornell. He is a published author of Global Pension Crisis: Unfunded Liabilities and How We Can Fill the Gap (Wiley & Sons, 2013), Gulag 401k: Tales of a Modern Prisoner (Lulu Press, 2017) and co-author of Jump First, Think Fast: An Unconventional Approach to High Performance (2022, Worth Books).