For the DSCR, some lenders require a period of prior investing in order to qualify for that loan, for example one prior year of investing.

Typically rates are better and you can go up to 90% LTV from your primary house.

I factor my acquisitions on Adjusted NOI base, out of fear of one off capital draws needed to continue typical rental operations.

Then you would have that leasing expense all over again.We actually sometimes like to pay the leasing brokers more so they push our site harder than others.If you have an A location and A parcel shape then typically lots of tenants fight for the site to lease it or buy it and leasing broker has to do less work for fee involved and rent per foot higher most times.

I factor my acquisitions on Adjusted NOI base, out of fear of one off capital draws needed to continue typical rental operations.

That's a great creative idea to propose it as a long-term rental, as opposed to the typical arbitrage terms.

Is this typical when it comes to fix-and-flips and how should I approach and solve this situation that I am in? 

For example, if your goal is to have steady income coming in, you could also explore the idea of simply renting out the single family home while you move into one of the units in your 2-family property (if you can). 

For example, I would not flip a house if the numbers didn't support  me clearing 50,000 or more.

Nathan, Congratulations, as Alecia said the first one is typically the hardest.