The more units you have, the more you get economies of scale.

That will allow you to A). make some mistakes with a lot more leeway than a newer investor starting now or have them work as investment properties at your basis where someone buying today would be cash flow negative or B) eventually sell or refinance the properties to raise the equity for higher return or larger scale investments.   

My dream is to buy distressed properties, rehab them, rent them out, leverage other people's money to scale up, and hold my properties forever - basically the BRRRR strategy that @Brandon Turner and @Joshua Dorkin teach.I'm glad I found Bigger Pockets - a great resource.

Bigger boxes look very enticing, then again there is some good economies of scale in our market to capture several buildings in a 5-10 block area and create great value there as well.

On the risk scale, this will probably seem easy compared to the Marines. 

That asset class isn’t suitable for buy and hold except on a large scale for experienced investors that specialize in that area.

Economy of scale is so much better! 

You are expecting 2189 a year at your calculations, however, its actually 2 units, so you are getting 1050/door/year which is pretty thin for the privilege of a mandatory job as property manager for 2 tenants, since you dont have enough budget to hire a real PM and scale your empire.

Try to do the payout in the contractor properly scaled out according to the work done.

I want to get the thoughts of other investors on what I could or should be doing to progress and scale up.