Many of the OTAs and lead gen sites, like Furnished Finder, are pushing credit card payments. 99.9% of the time I get a message from FF saying 'your tenant would prefer to pay by credit card so activate Stripe now!' 

Hi Zach, I just sent you a message on BiggerPockets.  

If you don't see it, just message me.  

@Lamier Guzman   sent you a message !!

I sent you a message

Will send you a message now.

if you need a spread sheet model  message me will send you the one my group use.Luis Maqueira Miami Multifamily Partners

After that, they sent a few messages mentioning they were working with a couple of probates and would get back to me.To date, I haven’t received anything, and my attempts to reach them have gone unanswered.

We use RentRedi for tenant screening and management, lease documents, automated late fees, messaging, maintenance requests. 

I'd connect with some local investors either through the Airbnb app.. can message them as a guest and ask for a phone call to see their experiences and see if someone can send you their P/L or share experiences, and or connect with local facebook groups.