A New York man who rented his apartment through Airbnb was found to have violated the city’s residency laws, marking the first legal setback for the peer-to-peer home rental start-up as it faces a growing number of regulatory questions.

An administrative law judge ruled that Nigel Warren had broken a 2010 New York City law when he accepted about $600 from a Russian tourist to stay in his apartment for a few days while he was out of town. The law prohibits apartment owners from renting property for less than 30 days, and was intended to crack down on landlords who bought affordable housing units and then converted them to hotels to make more money. Mr Warren was fined $2,400. Read more