We do complete kitchen and bath renovations and re-designs often down to the studs which far exceeds a typical turnover renovation where you'd maybe do minor repairs, paint and lay floor.I think I could probably manage 200+ units using Buildium property management software (or some other full featured app) without breaking a sweat.

Also I really liked the AI search example @Carlos Pirtran did.  

I don't care much about cash flow (most of mine are typical) but about that mortgage payment.  

A roof on a typical duplex may cost $8k to tear off and replace.  

@Yocheved BeerLenders typically still require 20-25% down.

Typically you want your all in costs to be no more than 70% of your ARV.

You then file the annual report each year and continue to fork over another $500 annually.Next "cheapest" will be legal zoom or a similar service, I believe they'll help roll the registration with the state into the start up package.I use "cheapest" in quotes - the primary purpose of an LLC is typically to provide some level of asset protection. 

For example, MEP plans are not required for permitting, but if you are designing a complicated house, having a MEP plan certainly helps to guide the trades to know exactly how and where to install the fixtures, versus something they have to figure it out impromptu in the field.

Typically a 3-bed would have a larger living space than a 2-bed as you expect more people in the household.

@Shane Duncanthat's a good start, but it seems like you need to verify some of those numbers - for example, taxes and utilities.