Chinese investors who say they were defrauded out of $7.3 million in EB-5 visa money injected into a Royal Palm Beach office venture now fear losing their U.S. residency as a result.

The 13 investors, who put in funds under the federal immigration program that grants green cards in exchange for a financial boost of at least $500,000 to a U.S. commercial venture, are asking for a court-appointed receiver to complete the project in line with EB-5 guidelines.