The special-ed teacher makes ends meet by hosting Airbnb guests in the living room of his San Francisco apartment. People who rent out space on Airbnb, VRBO and other markets for temporary housing are facing fines by the City Planning Department and eviction on the grounds of illegally operating hotels. "Unfortunately, we can't provide individual legal assistance or review lease agreements for our 500,000 hosts, but we do try to help inform people about these issues," said David Hantman, Airbnb head of global public policy. [...] the laws soon may change in San Francisco. The company's decision last week to start collecting the city's 14 percent hotel tax by summer may help Chiu's efforts. [...] Airbnb hosts roll the dice when they rent out homes, especially with neighbors watching. "If you live next door or nearby, and all of a sudden a place is turned into a hotel with people coming in and out, generally that is not welcomed by most residents," said Christine Haw, Planning Department code enforcement manager. Attorney Michael McLaughlin of Fried and Williams said he became aware of the ban when a client who rented out a house on Airbnb was the subject of a Planning Department enforcement action. The SoMa roommates hosted Airbnb guests in their spare bedroom for three nights in October and stopped because it was a hassle.