I am guessing the OP's question revolves more around actually qualifying, from a DTI perspective, for more loans.  

We currently are saving that monthly income in an account separate from our personal accounts but I'd like to know the process if for some reason we ever need to use it month to month.The next question revolves around financing for future rental properties.

My mother was able to advance me her revolving line of credit.

Everything does not revolve in your college. 

A noteworthy tax loophole, particularly beneficial for those yet to attain Real Estate Professional Status, offers a strategic approach to potentially offsetting OR EVEN ELIMINATING the impact of high job-related taxes.At its core, this tax loophole revolves around discerning between passive and non-passive activities within the realm of rentals.

I think you would be more impacted if they were revolving accounts (credit cards).  

We are an LLC holdings company and we likely be using some money from the flip for a down payment, but more important, will be redistributing money for estimated taxes, insurance, repairs on our current rentals in separate accounts.Our business model revolves around the least amount of debt as possible (credit cards, mortgages, car payments etc.).

It's a revolving door business, which is incredibly difficult to manage without the proper systems/admin staff (which 95% of them don't have).2.)

I mismanaged funds and had my own revolving door of friends/roommates.

HELOCs can be a great tool and the risk lies in how it generally behaves like a revolving line of credit.