If there were laws about Chrysanthemums, I'd follow those too...especially if they kept causing electrical issues (and therefor safety issues) in the house!  

My minimum safety net would be 1 year of living expenses in cash in reserve . 

I’m concerned that it’s a fire or safety issue? 

The best thing you can do to protect yourself is to get a rock solid lease and good insurance and make sure you keep your property maintained and provide all the safety equipment required by law.I only own one property atm and I don't even own the house I live in so I don't think the risk is worth the cost but once I get a few more properties I will definately get an LLC for my properties.

In Mass you can avoid sprinklers by using 2015 IEBC chapter 14, a quick fire safety analysis of the building and exits. 

She ate up a lot of my time and neighbors were concerned for their safety.

I do have customer service background working in high end restaurants in Orlando for 8 years (getting food shopped all the time and passing with 100%) and feel I would be an excellent asset to someones property in it becoming a successful STR.

in Mass you can avoid sprinklers by using IEBC chapter 14, a fire safety analysis of the building. 

I've never feared for my safety though.

You can ask the local police precinct for crime reports within that neighborhood to get a better feel for the safety of the area.