I am not aware of a purely online version and wouldn't recommend one unless you already know the law and terminology pretty well going into it.

If you're looking for something as a pure investment and don't mind waiting a few years to recoup anything you put into it, then look at the areas I mentioned above.  

First, to be clear, my calculation was purely a cash-on-cash return based on your 20% (34K) down payment and 415/mo net income. 

With what you're telling us here, you only need to put down the downpayment, and then all the other costs will take care of themselves, with the rent being pure profit.  

I think the important thing is to buy something, whichever one (partly owner-occupied or pure investment) works best for you in terms of #s and other factors (location, living next to your tenants, etc.).A portfolio of 1000 units begins with a single first purchase...

(Pure education, zero sales pitch.)

I'm talking purely about numbers.

Even if you succeed, the path so far is one of almost pure luck (and dreams).  

Purely examples

My recent client wanted pure cash flow, so we found him a double in Niagara Falls for $19k that's fully rented grossing $11k /yr!