It it not entirely clear what your question is.Taking a shot in the dark, Unrelated Business Income Tax (UBIT) applies whenever a tax exempt entity (Solo 401k, IRA, or any other type of non-profit) engages in a trade or business on a regular or repeated basis. refer to IRS Publicaton 598.Income derived from passive investments such as rent from real property, interest, dividends and royalties is not subject to such taxation.UBIT was created by congress long before IRA and 401k plans existed, to prevent tax-exempt entities from driving taxpaying businesses out of business.  

But we shook hands and agreed on a very modest non-refundable deposit and agreed to put everything in writing Monday or Tuesday.

Hi All]I purchased a building lot in a non critical wet land area.

I'm managing a "non-conforming" 7-plex for another owner.  

I also owe about 20k in non-mortgage related debt. 

I often buy non standard products from other companies, not home depot or Lowe's.

If the service is 100amps but the socket is rated 60amps, that's not good either...In our area, a 100amp service and 60amp box would be okay by all 3 inspectors we use but not all code officers (side issue, when a non-electrical inspector code officer adds requirements to code...), but such a mis-match is still not what you'd set out to do.  

With retail most non-bankers lenders start at a 2 million loan balance.If they are older and do not want to deal with it maybe an owner finance situation?

A possible thing to keep in mind, having been on three boards (and lived in and rented out condos, two currently) this does signal that non owner occupant rentals are on the board's radar. 

In a non appreciating market historically then I don't think owner occ is quite as important but its still a great way to buy your first 4 plex with great terms.