And the Deed of Trust is a lien that protects you in the event they stop paying. 

Now there are problems and you will need to protect yourself and a good insurance person is needed too.

More protection and income for my owners.

I can provide a consent and confidentiality form in order to protect your identity.

It's not a big deal though, as an umbrella insurance policy probably gives you more protection than a simple LLC (any lawyers can chime in here and tell me I'm wrong).  

Additionally, buy purchasing title insurance you are protecting yourself against any other lines that could possibly exist and were not identified.

This is best for tax, asset protection, ect . 

Now that statute only applies to Philadelphia and Allegheny County, but I can see tenants arguing for protections using common law principles. 

If you end up using a listing agent, their primary responsibility will be to protect their seller's best interest.

As long as you are abiding by the Fair Housing Act and not making a decision based on any protected class, I think you can ask anything you like (e.g. do you play chess at the grand master level?