Lot of what ifs that vary from traditional landlord-tenant law

Your choice. 

One option would be Roth conversion and another via Internal Revenue Code §72(t)(1): https://www.forbes.com/sites/forbesfinancecouncil/2018/03/26/plan-to-retire-early-how-to-make-it-work-with-traditional-retirement-funds/#1d25986d16df

.- Increasing Demand Across Age Cohorts: Boomers downsizing coupled with a growing number of Americans who can no longer afford to rent or own traditional housing continues to drive demand for MHC - see chart below.- Limited Supply: Only 10 new MHC sites have been approved in the U.S. over the last two decades - see chart below.- Downcycle Outperformance: MHC is the least sensitive property type to negative changes in GDP - the average stay in in MHC is 13 years, unheard of in residential real estate - resulting in stable predicatble cash flow with an ability to consistently, yet responsible increase rents.Lastly, a quick glance at some MHC investors and proponents:Warren Buffett is a significant investor in the MHC space, favoring the sector for its stable, predictable cash flow.

So I’ve finally made the choice that I will not be attending college and rather just work and save up for my first rental property.

Brian is right on; Marvin Integrity is an excellent choice - it's firber glass, which is superior to vinly in many ways.

Where do you see markets and assets that are of "like kind" where you have the choice of 40 units renting at $500/month or 20 units at $1000/month?

If an owner of an income producing piece of real estate agrees to do seller financing, will a bank do a refi on it (after the 6 months or a year) even though it is owner financed and not some kind of traditional financing?

To me this is a very clear and easy choice - sell. 

As far as my tax bracket, I will probably gross around $80,000-$85,000 this year, but I do have a company 401k(traditional) with match that I contribute to, only 5% for the match and then an extra $5,000 flat for dependent care and another $1,000 towards an HSA.