Short-term rentals offer many perks for owners, including flexible income, remote management, and access to a global market. But a horrifying incident in South Florida has spotlighted one of the sector’s darkest vulnerabilities: when something goes wrong, and no one is on-site to intervene. In late March, a woman cleaning an Airbnb property in Fort Lauderdale was allegedly raped by a man who entered the home while she was working. The victim has since filed a lawsuit. The accused has not yet bee...