There’s really no equity to speak of so if there is a lawsuit, there’s limited exposure post insurance coverage. 

Same results as above.3) If you have not yet obtained possession, and file an ejectment lawsuit, they will counterclaim in the ejectment lawsuit and ask the court to declare the sale void.

Best case scenario if you get targeted by HUD, you win the lawsuit, but you are out hundreds of thousands of dollars that you spent on attorneys. 

An LLC can help to separate your personal finances from your business finances in the event of a law suit. 

Remember, it will still cost a lot of your time/money/aggravation to defend a lawsuit that you may eventually win.

Trees do have their own little slice of case law as they have caused many law suits. 2 rules to remember: if the tree hasn't fallen or you haven't contractually agreed to cut it there isn't a need for a suit.

HOAs also have restrictions on signage and showing, making it harder to rent out.If the HOA ends up in a big lawsuit, often banks won't provide a mortgage which means you may not be able to sell when you want to or do a cash-out refi. 

There have been lawsuits over the "zestimate" and investors generally know it's not 100% spot on. 

But you are just using estate planning and LLC's to work in the modern era to fight modern wealth destruction (law suits/judgments, healthcare expenses leading to long term care / incapacity, remarriage after death, death or remarriage of children.) 

Or, do you just mean that I'll be dealing with a frivolous lawsuit that will just waste time and resources?