With Appfolio you could select your preferred vendors. 

I'm also seeing lots of homes for sale that were used as Airbnbs, so I'm wondering if that along with these numbers may indicate it's an overly saturated market, and if these are signs that maybe I should keep searching for a stronger market, or just a property that cash flows given the average annual revenue?

Is there something like off-market commercial deals where I can search them (like Investorlift or New Western for residential) ? 

I'm looking to purchase my first rental property and have been searching for a deal that would generate positive cash flow based on my projections.

The easiest is doing a search for REI Meetups.

Here are a few suggestions on how you can maximize the wealth of information available: Check out the blogs and podcasts, or take advantage of the search feature (magnifying glass).

Here are a few suggestions on how you can maximize the wealth of information available: Check out the blogs and podcasts, or take advantage of the search feature (magnifying glass).

You can also use the search feature (magnifying glass in upper-right) to look at previous conversations.

Always looking for great deals but very selective as we don't really need to add to our portfolio at this time - but would definitely consider a great deal. 

You can also search for local FB groups that specialize in longer term stays.