We have three of our own; we never allow unaccompanied showings, but nothing would prohibit us from so doing.

I have read some forums on BP that talk about how to handle a double closings in states where it is prohibited.

I'm sure the custodian of your SDIRA can explain in more detail what is considered a non-prohibited transaction.

But I dont't want to make a prohibited transaction.

@Scott HormanThe IRA may not loan to an LLC you own 100% of, this is prohibited as you are a disqualified person to your IRA.It does change if their are multiple members.

@Russell Holmes have you considered that, in addition to the fact that such unsolicited calls are prohibited by law, that when you make thousands of calls you're wasting thousands of other people's time as well?

The architects' section of the Business & Professions code absolutely prohibits construction of anything that is intended to be sold by anyone but a licensed general contractor. 

Const. 50 (a) (6) does that statute prohibit/bar loans to owner-occupied[=homesteaded] Duplexes [or other 2 to 4 unit multifamily]? 

Unfortunately, in some areas there are municipal utilities where the municipality prohibits the utilities from being in a tenant's name; when that is the case, you build a projected amount into the rent (so that the tenant is in a way paying it) and you can then state that tenant is responsible for paying landlord any billed amount in excess of the "allowance" amount you built into the rent.  

The Kennedy's and other families made fortunes from importing Scotch before, during and after prohibition.