John is right about the enemy method, its the only accurate way to estimate revenue.The blanket estimated revenue amounts on analysis websites like AirDNA can be a decent baseline, but generally include too big a pool of properties to give a very precise estimate.The way I use the enemy method: Sign up for a pricing software that has market analysis (I use PriceLabs but most of the pricing softwares have this feature).

Every time a guru “education” course was co pleated, I’d receive 10 -20 phone calls from either investor wannabes “building their team” in preparation for all the real estate “great” deals they were going to uncover or the same wannabes who had already identified a “great” deal (they hadn’t submitted let alone secured acceptance of an offer yet) and were lining up their financing which since they were purchasing at 50% of the value they’d end up with not only 100% financing but also walk away from the closing table with cash in their pocket.  

I found my insurance broker, Steadily, through a BP podcast ad, I found Baselane to use for banking through a forums ad, I found RentRedi which I've used as my PM software for years as a sponsored post.

We didn't build some sexy software application in silicon valley.

Hi,I'm considering submitting an offer on a property that's a couple blocks away from Main St in Downtown Littleton.

It looks like a great software and a few cool bonuses, but who know if it actually works.

As a PM and a fiduciary to my clients I use a more complex software than most self managers use and also employ a live revenue manager to scan my local area. 

However, you are limited as to what you can do compared to the software option.I personally have not used either on a Mac so I can't help you there. 

Does anyone know a property management software for a small landlord (10 to 15 units) that allows ach draft?

You can click on them next to my picture.I happen to use Act, but I recently did an article on my blog about some nice contact management software you can get free.