@Cosette Trantow Assuming that AZ MLS is roughly the same as MA/ME MLS, I can tell you that an actual MLS feed is not only more accurate than using data-scrapers like Zillow and Trulia, but you'll get listings about a day faster.In a very hot market like we have here in eastern MA, that 1 day jump might make the difference between getting an offer in ahead of the crowd and competing with the crowd.Our system will email our clients within 15 minutes of a new listing hitting the market. 

Not only will that give you additional data on your leads, but it will let you remarket, build lookalike audiences, etc. 

If you have factual data I would use that data.  

How does one go about finding data?

I have some baseline data but I want to learn all the little things that makes it great to people who are already investing there! 

I am curious why 35810 is not in the path given its proximity to the toyota plant and the Facebook data center. 

If it did impact your ability to acquire your cash-out-refi, then I would contest it with the lender (they hire the appraiser) and provide them data, not just a complaint.

If they didn't, I would be afraid there data Is wrong. 

Here's a great site compiling hotel data: http://www.ahla.com/content.aspx?

Also, City Data Forums are good if you need more information about trends or general areas to avoid, etc.