While you are preparing you need to have your credit checked, pull your own credit report and score so it's not counted against you. 

Although 2 of the people were police officers, what is their credit score or income?

We have about 20k and credit scores over 700.

I have excellent credit score and the unit has solid cash flows.  

I'm not incredibly familiar with the area, but I know Bayside is more of an upper-middle class, well-established neighborhood.

That's incredible

Thank You @Moshe H. for the links they are incredibly helpful.

I'm a little hesitant on doing so because I wanted to try applying with other lenders at the same time since they do credit score checks.

It is incredibly expensive and you will lose money per deal 99% of the time.

Hard money lenders – Best for novices or borrowers with a bad credit scorePrivate money lenders – Best for novices or borrowers with a bad credit scoreBank financing – Best for experienced flippers who have a great credit score, capital on hand, and significant collateral.