San Diego will again consider a proposal to curb short term (read AirBNB) rentals, allowing homeowners to rent their residences for no more than 90 days per year.

http://www.sandiegouniontribune.com/business/tourism/sd-fi-rentals-bry-20170821-story.html

Las Vegas  launched a 24-hour hotline so residents can report noise, trash, parking issues and other nuisances from short-term rental properties.

The phone number is:  702-229-3500