When I took Stats we were taught that "there are lies, damn lies & statistics".

Not only should you not fall for this hijinx on behalf of the broker, you should also examine the leases, what their present rents are, and how many of the units were very recently rented, and to whom. 

Especially the last sentence (in bold below) landlords must examine closely their neutral policies and practices, which may have an unintended discriminatory effect thus exposing the landlords to liability.

We take a mix of crime stats, area stats, school ratings, population growth/decline, median income, rents, ownership vs rental percentage, and overall desirability to rate our properties.  

There's the Apartment Investors Club that meets in Long Beach:  https://www.meetup.com/ApartmentClub/I've heard Kathleen Kramer, one of the organizers of the Apartment Club, speak at a couple of OCREIA meet ups and she provided a lot of great stats & figures about the marketHope that helps!

I pulled back, examined my situation, thought about where my success had come from, where my success was leading me, and apologized profusely to the new agent.

I would look at lowering your rent and/or examine how you are marketing the place to attract better tenants.  

I personally think the best way is for you to go examine yourself and utilize your own judgment.

So I just purchase my first property, it is a house and a 1/2 duplex, here are the stats, insurance 660/year, taxes 1730/year total rents currently at 775 per month (350 and 425).

Every stat they have pulled on me is amazing.