Not sure if you have read many of the BiggerPockets books, but @Brandon Turner discusses it at length in one of his book, I think the one with "low and no money down" and how he used that to buy his first apartment complex. 

I’m wondering more about mid length rentals marketing to traveling nurses on the I35 corridor.

The 60+ minute length was a good fit when I was first getting started, but now it's not as appealing as the leaner ones.

I did purchase a property recently which had a un-satisfied Deed of Trust which went back before the last arms-length Deed transfer (2 owners prior).  

Cash out rates are at max 75% from what I've seen depending on the borrower's middle mortgage FICO score.There are factors that really weigh into the rate including the length of the prepayment penalty and the LTV.Here's a bit more in detail about how rates are calculated for DSCR loans:1.

It is possible to fund wholesale opportunities without "You being the wholesaler" so that things can be done at arm's length, but...2) Wholesaling is considered a dealer activity and therefore something that produces trade or business income.

Length of loan?

Depending on the length of time, this can affect his credit rate and his borrowing power, so there is risk on his part that I need to find an equitable solution to.

Cash out rates are at max 75% from what I've seen depending on the borrower's middle mortgage FICO score.There are factors that really weigh into the rate including the length of the prepayment penalty and the LTV.Here's a bit more in detail about how rates are calculated for DSCR loans:1.

Its normally not advisable to hold real property anyway in a S-Corp taxation.As mentioned, its not an arms length transaction.