If your license is strictly for your own portfolio, then how much you keep in your pocket should matter the most.

@Dmitriy FomichenkoWould the SDIRA be subject to UBIT if they're used strictly as a loan?

There are some lenders that offer long term (30yr FR) and their requirements aren't as strict as a banks.

Even though there isn't a tax reason to maintain good records, you will have to maintain strict paperwork showing that you are in fact loaning money to yourself from an LLC.

They are much more strict than an investment property.Foreclosure on a primary is similar to an investment property except that borrowers get more protection on a primary.

Hi, I have some contacts that are willing to use their self directed 401 to lend me money to purchase some investment properties.From what I've gathered, the terms, rates, and any other details of the loan are strictly up to the individual and myself. 

@Heidi Emmendorfer if you are strictly getting it to gain access to the MLS I would try to find a broker that charges no/low monthly fees and charges a fixed fee per transaction.

Freddie may have strict requirements you'll need to have done within the first year of purchase.

Those are some pretty strict requirements, especially if you don't have a track record of successful investments to backup your ability (I'm not questioning your ability here, just saying HML's look at past record of success).

I don't believe Realtors should be holding onto pocket listings anyway since that has so much potential for breaking fiduciary duties going after both commissions unless the seller strictly states they want to stay off the MLS.- Now about specific cities.