Some contractors are licensed but have no staff just them so they are exempt from work comp so if they injure themselves you could be on the hook.

And do not even think about using the illegal basement as-is...imagine a fire breaking out and someone getting injured or worse....that would all be on you.

Even the tenant can sue you if they injure themselves.  

If someone injures themselves and sues, they will sue the LLC, not you personally.

A serious accident with injured person requiring hospitalization can get to a million dollars in a month or two of medical care.Hence the efforts by asset protection specialists.For my part, I just use the LLC approach.

If a repairman is injured working at a property, if a potential tenant breaks something inside a property they're showing - it covers all of those and more.  

If someone injures themselves and sues, they will be suing the LLC and not you personally.

I've never been a good "online course" learner but this helped me out during a time when I was injured. 

Fortunately no one was injured and the home was not damaged.

If a tenant is injured at property 1, and wins a $750,000 judgment, he will be able to put a lien on BOTH properties for the entire $750,000.