I was doing corporate housing (which I loved) for a few months via rental arbitrage, but pulled back on it when my leases came to an end during the COVID-19. 

Edit:Sorry I thought it said you had your accounting degree.....Go look on the career page for Regency Centers Corporation if anything interesting is posted.  

Looking for advice on setting up accounting, (have quickbooks and separate accounts already) but should I start an S corp or LLC?

I have an S Corporation and provide coverage for offices when needed. 15 years ago, I heavily studied RE investing because I wanted out of the medical field (it is brutal).

The housing shortage in all of America has strong demand.

One last question, if i were to buy a property cash, after i fixed it up and put a tenant in the rental could i refinance with a traditional bank (such as bank of america)?

It largely has to do with The Great Migration, reallocation to real assets, depressed economic activities over the next decade, and specifically to Fayetteville, America's largest military base.

And the higher-paying corporate jobs are not as secure as they once were either.

I just graduated college back in May and got my first corporate job.

Thing is MMHA doesn't cover or care about any and every investor/landlord, they cover those that matter to them which is generally the giant corporate level landlord entities.