I was wondering if I surveyed and divided it into say ten lots with common parking like a condominium, would I then be able to build 4unit apartment buildings per each smaller lot and finance each 4 unit apartment like a house with a traditional mortgage on each?

Their return will be a % of the profits, not a traditional loan.  

In a similar issue, they already closed one of my two accounts (one is for Roth 401k funds and one is traditional) because it was inactive for a few months and had a zero balance.  

Then you are left with an object that has less value then a traditional mobile home. 

Also, some of the more sophisticated flippers do SFR flips more as a BRRRR (rent out initially, then sell later) than a traditional flip.

Also I luckily found 80k of cash that I can use towards this investment so now instead of FHA I am trying to get a Traditional Investors Mortgage with 20% down (hopefully, read on.)

In fact, based on the fact you don't have traditional W2 income, I think you should be looking for a commercial loan (from a portfolio lender).  

My current financing plan is to use traditional financing since 20% down isn't an issue and both of us have good (700+) credit.

We can't buy with a traditional loan for another 7 months because my boyfriend's job switched from 1099 to W2 the year before last.

A lot of traditional analytical templates, p&l sheets I found online don't really factor in some of the unique nuances of short term rentals like this.