And, like I said, the power company would even do basic checks for free.You could explain to your tenants that it will save them money in air conditioning, and it would also give you a good excuse to do a quick inspection at the same time.I'm no HVAC expert, but my experience with the above would lead me to believe that there would be no danger to damage with your units, if you turned them off in summer.

This is the danger with HOA or condo associations.

If this is your personal friend who's on the island and you think that there is suspicious drug-related activity, then be careful of asking your friend to enter a possibly dangerous situation (low possibility, but not zero).

I suppose gas could be more dangerous if left on (flames?)

Partnering with anyone, whether it's business or love, is fraught with danger. 

Some people are treading dangerously here, giving legal advice that is often illegal.

Presa Canario, Pit Bull, Siberian Husky, Staffordshire Terrier, "Wolf Dog", Bull Terrier, Pit Bull Terrier, Rottweiler and any combination of these.Tenants will be evicted for misrepresenting any of the above type of dog, as well as for being in possession of any poisonous, dangerous, endangered species or otherwise illegal pet.

Can a landlord be required to let a tenant break their lease if the property becomes too dangerous for the tenant? 

This is a cheap temporary solution so the tenant doesnt drive you crazy in the meantime. our windows slide left to right not up and down so there is nothing to hold a window unit in place.. it would be dangerous to put a window unit..his apartment runs length wise and if he did open the window in the front of the apartment ( living room dining room) and his bedroom in the back it would cause cross ventilation but he refuses to open the windows for safety reasons.. we are in a nice area and he is on the second floor.. our living room dining room have ceiling fans and we gave them 2 large stand up rotating fans.. the lease does say there is no compensation for a temporary lose of heat or a/c.. so would that still leave me liable for his hotel bill?

But apparently they don't care if their building burns down and kills their tenants, because they did nothing about this very easy to remedy issue in the two years I lived there.If they would have just fixed my A/C that was apparently leaking Freon like a sieve and the dangerous fire extinguishers, I would have stayed living there another 2-3 years...because I loved the location and everything else about my apartment and the complex.