A sweeping Treasury Department rule has activated the first nationwide anti–money laundering requirements for residential real estate, forcing professionals involved in closings and settlements to report certain non‑financed property transfers. The move closes long‑standing loopholes that allowed criminals, corrupt officials, and foreign adversaries to hide illicit funds in U.S. housing. Backed by recent federal court decisions, the rule positions the U.S. as a global leader in financial transparency—and signals that commercial real estate may be next. For today’s real estate professionals, staying compliant is becoming just as essential as understanding the market itself.