I came across this article from Kellogg Insight showing how online sports betting is eating into people’s savings.

Would QuickBooks be my best bet or is there something else that would fit my needs better?  

With inventory tight and rates mixed, some investors pick up existing deals, others go ground-up.
We’ve funded both ends: new builds and acquisitions.
Which side are you favoring this year and why?

Your best bet would be to go to a local bank.

What works for me may not work for you.Right now your only "problem" is that you want to collect rent online.

I use QuickBooks Online for all of my clients.

I think we're in a buyer's market here in Austin for the next 1-2 years at least if you were to ask me to make a bet on it.

Your best bet is between Yardi Voyager and AppFolio. 

You haven’t been hurt, and I bet you have real issues to focus on.

High fee 8% / 10%, they are the most reliable companies in most cases, sometimes the leasing model is to hire local agents that gives a better marketing on your property to reduce vacancy rate, and when offering betted vendors they have the best prices.2.