I would verify with a contractor whether or not that rehab number is accurate before buying anything.

(I figured it was accurate because I own a SF rental about twice as big and the insurance is only $49/month). 

@Nathan G. those forms that we Google are accurate and reliable you would say, is it really that Simple to just find them in Google search ?

I would consider putting SOME money down if you've got savings Doing this would improve your DTI for future purposes and improve your cash flow and equity performance.

What corporate service company have you used that can form the entity, perform registered agent and registered office service?

As you've seen, it's very easy to make poorly performing apartment complexes look good by just plugging in assumptions, but once you own the place, you'll realize that things like 5% maint, 5% capex, and 8% vacancy are numbers you could only dream of. 

Its a complimentary program we can use and usually is pretty accurate. 

Even if a vendor has performed poorly in the past and cut corners, would they share that information with a prospective client?

I self manage and self perform most maintenance requests.

The older hardboard is still holding up/performing in drier climates when installation was good, eg no nails overdriven and z flashing used where needed, and it was kept caulked and painted, including the seams, window trim and paint on the lower exposed edges and it was installed a distance from the ground.