Put aside whether or not this would make sense financially as I still have a lot of numbers to crunch on that end but is it possible to finance this sale for my tenants through an IRA that I have and if so what's the high level process in doing so?

Just make sure you all really trust each other because if one person stops paying their share of the loan each month, then everyone else on the loan will still be just as responsible for paying it.  

Any tips on how I can work my way into the industry as an employee at an entry level and basic position? 

It’ll propel you to the next level.

Could someone provide examples of what mild vs extreme due diligence would look like with a 4 unit house that requires a moderate amount of TLC from the landscaping to the plumbing and electrical? Whom do you bring in...

Chances are if you've given them value and they trust you, they'll be open to the idea.  

It doesn't matter if it's brand new, get a good home inspector you trust to walk through it.

We are creating a mailing list for residential land owners for our spring 2019 home starts.Single family residentialWithout structures/improvementsNo corporationsNot trusts$150,000+ valuePrefer subdivisonsThose are the simple criteria without location. 

Everyone determines their level of acceptable risk and the bidding goes along.

When buying a property using owner financing does there have to be a deed of trust and a promissory note?