One Real Estate Investment is a privately held multifamily real estate investment and development firm headquartered in Miami, Florida. Founded in 2001 by Jeronimo Hirschfeld, the company operates as a general partner in multifamily development and value-add investments throughout the United States. The firm focuses on Texas and the Southeast, acquiring and developing market-rate housing across the Sun Belt region. OREI capitalizes its investments through proprietary funds and programmatic relationships with institutional investors, family offices, and ultra-high-net-worth individuals, alongside institutional lenders including agencies, banks, insurance companies, and private lending funds. The company owns and manages a portfolio valued in excess of $2 billion, composed of more than 11,000 multifamily apartment units. The investment strategy emphasizes capital recycling through 1031 exchanges, enabling tax-efficient reinvestment and long-term equity growth. OREI's asset class focus is exclusively multifamily, with a preference for garden-style communities. The firm partners with national property management firms that have strong local and regional presence in each target market to ensure operational efficiency and successful value-add execution. The company maintains a team of 25-30 professionals across acquisitions, development, asset management, legal, accounting, and investor compliance/relations. Geographic exposure is concentrated in Texas, Florida, Georgia, Tennessee, and Alabama.