Upvote:3
I saw this question put to the Airbnb Facebook page...
They were referred to a page containing this...
Source: https://www.airbnb.co.uk/support/article/449?hc_location=ufi
The page also advises you to contact the consulate or 'legal authority' in the country to which you are travelling. The French consulate in New York has a general enquiry telephone number, but you need the extension of the person before it will engage (for many a waste of time and expense). I would NOT advise approaching a 'legal authority' because Airbnb is 'too new' for an indicative body of case evidence to have accumulated (dated today 13 April 2015).
I would follow Airbnb's support page for a billing receipt and enclose it as proof of accommodation.
Adding...
See also...
Earlier this year a bill was also passed in France legalising short term rentals of primary residences - great for Airbnb in Paris.
Source: http://www.theguardian.com/travel/2014/jul/08/airbnb-legal-troubles-what-are-the-issues