https://www.biggerpockets.com/blog/ensuring-solo-401k-compliance

Glad too I didn’t pull the trigger .

If you love a market where you can get cash flowing SFR's all day but the multi numbers dont make sense.. it would make more sense to pull the trigger on cash flow and not wait 3 years to snag one multi. 

Generally these taxes are pass thru to the guest anyway (permitting is not but usually only a few hundred dollars)...however, if you are operating currently out of compliance and not collecting, you might want to save some aside in case the tax man come a calling to your town for past taxes due that you can no longer collect from the guest

While you can trigger the due on sale clause if you purchase a property into your personal name and transfer them into an LLC, you do not trigger the same red flags by transferring the property into a land trust.

You'll just have open the wall risk and now bring it up to code compliance risk. 

I believe all the assets of the trust have to be sold to close the trust thus triggering a tax event on the property that I don't necessarily want to get out of?

I saw gamble in that transferring title could trigger the bank calling in the loan but many times they won't do that as long as the payments are being made regularly (but they could).

I'm wanting to pull the trigger (3 years on BP) but want to know the best options or find a partner and go half.

May not be strictly compliance with the mortgage terms, but people do it.