This leaves the tenants extremely frustrated, especially if it's a refrigerator issue causing their food to spoil, or possibly an issue with an appliance leaking water onto the floor, etc. 

Just as some updates to the area as food for thought.

I don't know of any resources set resources, it reminds me of when I was starting a food truck back in 2012 there wasn't much web presence or resources.

Emphasize the importance of maintaining a smoke-free environment for the health and safety of all residents.Impose Penalties:If your lease agreement includes penalties for smoking violations, make sure to enforce them.

If you are concerned for your safety, I will offer to release you from the remainder of your lease without penalty, but you must provide me with written notice at least two weeks prior to your departure.

I had to deal with a lot more issues than I've ever had in non-S8 rentals like extensive property damage and also bed bugs, roaches, drain lines completely clogged up by grease (I learned what sewer worms are, look it up), spray paint art on walls and food on ceilings, noise complaints, police at the property, removing dead bodies, etc.  4.

But for health and safety reasons . 

Just some food for thought.https://www.mobilehomeuniversity.com/mhp-mastery/the-new-par...

Using an LLC can offer more legal and safety cover.

Definitions - Commercial Vehicle - NC DPS definition - Vehicles with a GVWR of 10,001 lbs. or more used as part of a business (including a non-profit organization) and crosses state lines, are considered commercial motor vehicles for purposes of most of the safety regulations.