There are a few places you could obtain this information however the strongest websites will require a subscription (such as Property Shark which runs about $1K for the year).

Subscription agreement and good operating agreement should be ok.

I learned Quickbooks early on, but when they moved to a subscription model, it got very expensive very fast.

Short Term Rentals: Is a subscription to AirDNA worth it in evaluating NOI quickly?

The subscriptions even at a discount is still high cost.

Pay for the Whitefish subscription on AirDNA and see what comparable places are earning.

In setting things up before my first purchase I am seeing lots of wholesaler websites for my area (Chattanooga) but all of them require a subscription for any meaningful leads or information. 

When using QuickBooks software here is what to look for:- QuickBooks Desktop--- One-time pay - recommend upgrading every three years--- I recommend the Premier or Enterprise version to view Balance Sheet by Property- QuickBooks Online--- Subscription model cheaper when paid annually and 1st year is 50% off--- I recommend the Plus version for everyone or Advanced.

We're looking at testing the water on vacation rentals in Florida - and am wondering how reliable is the data from Mashvisor - is it worth the subscription fee?

Your subscription agreement will qualify folks pretty well.