They typically want to ensure it primarily contains owner occupants.  

This area contains old (1970s) housing stock, mostly smaller ranches with some functional obsolescence and a fair amount of crime compared to other places.

Designed to convey a message more than contain literal truth.

The information contained in this post is not to be relied upon.

A lot of forum members are very knowledgeable in their respective fields related to real estate investing, whether that is real estate sales, wholesaling, flipping, rentals, lending, self-directed IRA and Solo 401k investing, or tax and legal guidance.There are a few self-contained guides that you can access here: https://www.biggerpockets.com/guidesThe site has quite a few tools that can be helpful for new members.

They contain some psychological story and are designed to create a discussion that really has nothing to do with real estate investing and more to do with feelings and thought.

I like the search features: https://www.biggerpockets.com/searchAlerts can be really helpful too: http://www.biggerpockets.com/alertsThere are a few self-contained guides that you can access here: https://www.biggerpockets.com/guides

@Jacob Huelsman In Arizona, there is a local real estate attorney who posts on his website, FOR FREE, Arizona specific clauses that he recommends people incorporate into his leases.That way when they have to hire him to do evictions later on, the leases already contain everything he needs to get things done more efficiently.Yes, in my opinion, you should have a lawyer look things over.

It contained links to expanded areas to read on.

And I did note that some of the tax  statements contained an exclusion (per the new tax law) for Qualified Business Income which I assume is a benefit to investors...but again, I'm not a CPA.