Barrack was later a principal with the Robert M. Bass Group. In 1990, he founded Colony Capital, with initial Investments by Bass and GE Capital, and later Eli Broad, Merrill Lynch, and Koo Chen-fu. He has invested some $200 million in Middle East real estate, $534 million in non-performing German real estate loans, and made a $24 million loan to Photographer Annie Leibovitz. He also owns the Neverland Ranch. Through Colony Capital, he runs a $25 billion portfolio of assets, from the Fairmont Raffles Hotels International hotel chain in Asia, the Aga Khan's former resort in Sardinia, Resorts International Holdings, One&Only Resorts, Atlantis, etc.