So all foreclosure fees, attorney's fees, lender advances to protect the collateral, etc.

@Patrick Desjardins, if notes with a borrower that does not match the current property owner or a second on a property $200k under water, the first lien holder has started foreclosure, and the borrower has filed for bankruptcy protection is the perfect note then you are right I am not going to pull the trigger and note investing is obviously not for me.Send me the information associated with one of your notes so we can see if I am one of the investors that has infuriated you lately. 

If youre planning on protecting yourself get a bullet proof vest and then a gun, with a vest you don't have to worry about a bullet going through your chest or getting stabbed with a dull knife, it will give you the extra 2 seconds that will allow you to pull out your gun and save your life.  

However, if you read the law, this does not protect you.  

The landlord may enter the dwelling unit at any time for the protection or preservation of the premises.

The one that protects me from buyer going behind my back..

However to afford limited liability protection and creation of a registered entity the Govt.

@Jason HernI thought an LLC was the the normal structure most investors used for the liability protection?  

How does one legally protect themselves from this situation?

A working dog is not a protected animal.