Are you looking at traditional bank financing?  

I currently have some money in an old 401K and a traditional IRA that I would like to roll over into a SDIRA.

You will have vacancy, you will have bad tenants, you will replace expensive items. 

What is of importance is their 30,60,90 day pay records, credit limits, percentage of credit used, what type of credit items they are defaulting on etc.

Auxiliary items may be utility bills or other items that prove that someone, most likely yourself, lived there. 

If it's a traditions retail "Flip", then I buy at 65% of ARV [after repair value] minus the rehab.  

If you want to be a traditional agent and sell to homeowners then Long and Foster will have lots of training and support.

Our "niche" was finding the best financing for each deal - traditional, commercial and private.Over the years since that first deal I personally have been involved in hundreds of real estate transactions, bought, sold, flipped & financed more than I can possibly count.

Still managed to almost lose my hat on the deal just finishing out flooring and a few trim items.  

The ones by ft dietrich are non warrantable , so that makes traditional financing on them impossible.