The purpose of this legislative proposal, known as the "Stop Wall Street Landlords Act of 2026," is to address concerns about large investors buying up single-family homes. The act aims to limit the financial advantages these investors have, which can contribute to rising housing costs and reduced availability for everyday homebuyers. Key provisions of the act include several important changes to tax regulations and federal assistance programs. First, it disallows large investors from deducting certain expenses related to owning single-family homes, such as mortgage interest and depreciation.