This is not a section 8 or a government program. https://my.neighbor.org/They promise a double deposit and will cover 100% of the rent for the first three months and their coverage scales down. 

Economy of scale has quite the ring to it.  

I'm in the process now as far as scaling back monthly payments in a way I don't have to spend my rental income.

@David BarnettAgree on flexibility and the ability to scales quicker with portfolio lender.

However, now that I'm raking up and scaling my business to higher levels I want to be even extra careful doing bigger deals.

Too much work and responsibility for a small landlord and restrict ability to scale up. 

I'm looking to scale a portfolio...managing the properties at a detailed level isn't part of that vision :P

The chance of having available cash for everything is difficult if not impossible when you scale your business.It does require a different mind set if your very conservative and like to pay off everything.  

In many markets, you have to have scale.

I would suggest going the small apartment complex route, more units give you better cash flow and the ability to scale at a much faster rate.