I believe, if you have a certain legal structure where you are renting it from a company and the unit is no longer in your name but transferred to say, an anonymous trust, then it can be turned into a commercial non-owner occupied property.  

[A trust usually doesn't offer liability protection, just a layer of anonymity.]

But whether or not your need a different LLC for each property and trusts for added anonymity is entirely subjective.

Anonymous.

Tell the other tenants that you feel their pain, and that they should report, anonymously, to the police every single time they see any illegal activity going on. 

Finally, with the use of Trusts while establishing these structures you can add a level of anonymity by removing your name from public record.

Finally, with the use of Trusts while establishing these structures you can add a level of anonymity by removing your name from public record.The one issue you haven't mentioned, yet, is the Due on Sale Clause.

Finally, with the use of Trusts while establishing these structures you can add a level of anonymity by removing your name from public record.With concerns regarding the funding of an LLC, I would recommend reading this article.

There are third-party companies that you can pay to provide information which will call up properties anonymously to try to get information.

Finally, with the use of Trusts while establishing these structures you can add a level of anonymity by removing your name from public record.I really just break down the current personal exposure a client faces, what investments they have and their future investment goals.