Flood Mitigation: Actions Needed to Improve Use of FEMA Property Acquisitions, Report to Congressional Requesters [GAO-22-104694] [open pdf - 2MB]
From the Highlights: "Flooding is the costliest natural disaster in the U.S. Through grant programs that support local hazard mitigation projects, FEMA provides funding for communities to acquire and demolish flood-prone properties from willing owners. From 1989 to 2018, FEMA awarded about $4 billion to acquire about 46,000 properties. GAO [Government Accountability Office] was asked to review FEMA's property acquisition efforts. This report examines (1) benefits and challenges of property acquisition and FEMA's efforts to improve acquisitions, and (2) options for improving FEMA property acquisitions, among other objectives."
Government Accountability Office: https://www.gao.gov/