I have never found it to be very accurate but for fun I just looked up my house because we just had it appraised last week when we opened a HELOC and I was surprised at how close it was, Zillow has it just $27,000 under our appraisal, 6% off!

The main thing is to address as many of the variables, UP FRONT, so that there are no surprises later.

I was surprised to find that depreciation was not deductible and loss was not reported as non-passive but passive so it stays with the LLC 1065 to match against income for 2018. 

I'm surprised their normal monthly fees didn't cover the repairs. 

I think you'd be surprised how thin the margins are.

I think you'll be surprised.

I'm always surprised at what little is needed to get much higher rents, at least where I've invested.

It could be legit, but I would be surprised if the don't have some crazy fees.

@Paul F Russo I'm a bit surprised there was not a response to your post...this is a good topic...maybe better served on a different forum.

With an FHA loan and first time homebuyer credits, your out of pocket cost to buy will be surprisingly low.