I know solar fan is expensive but maybe worth it in the long run and I don't have to replace it in case electric powered fans become banned (it is in GA). 

I actually had to stop using my condo as an Airbnb and turn it into a corporate rental because the HOA banned all STR's.

The Riverside, Moreno Valley, Redlands, Loma Linda, Perris, Hemet, Banning area?

Someone ban this guy.

I have seen dozens of different condo association declarations and I do not believe I have seen a single one that did not ban Air BnB.

Asbestos was banned in 1973.

Ned Carey it seems there are several cities that are proposing new laws that aren't necessarily good for landlords or for business owners .There was a recent BP thread on a proposed law in Seattle that will ban criminal background checks https://www.biggerpockets.com/forums/52/topics/475472-seattles-latest-insanity-ban-criminal-background-checksI know in Los Angeles they are thinking of how they can "expand" rent control to apply to more buildings .

The city still only fines landlord though.There are cities trying to ban the use of residential houses for STRs... and there are cities that only permit such usage if they actually register with the city and get a business license which then allows the city to better track things, collect taxes, audit and manage compliance.AirBNB tries to make things difficult for the city in that regard and tries to keep the platform gray -- encouraging and enabling continued violation and evasion of local ordinances.

It would not surprise me at all if the government bans certain products from being sold for spray work in houses.

University District - Prices are high, and Ohio State, in their infinite money grab, has just banned sophomore students from living outside University housing, which will impact landlords.