So I call many "Deferred Specialist" and they finally advise me to do 1031 instead because if the LTV is not less than 50% and the sales proceed are not large enough -- it's not profitable for them to work to manage the Deferred Sales Trust AUM. 

To make it even worse, my attorney has advised that the 90 days has to be three full calendar months (in his interpretation) - meaning that the 90 days starts from the 1st of the month following your notice to them.

However, as these terms are not used "scientifically" in the Solo 401k industry, it's advisable not to focus on those terms; rather, develop a sense of what's required to maintain a Solo 401k plan and identify exactly what is offered by a service provider.The upshot of all this is that once you've adopted a Solo 401k plan, it doesn't suddenly vanish or become non-compliant because a "plan provider" or "plan administrator" resigns.

The SEC attorney I've been working with advised that I would just need to disclose in the PPM that 100% of the capital would be used by my LLC.

With the newer 5% down conventional loan for owner-occupied multifamily option, I generally advise people to start analyzing from there if they want to house hack a multifamily with minimal down.  

If you allow pets, your lease should require proof of licensing, regardless of breed.If the owner lets them run, with ensuing "incidents," I guarantee that violates city statutes.I (personally) would advise getting rid of the tenant.

Minus re-zoning expenses- Any advise for this transition into low income/transitional housing?

I would also ask my attorney about the advisability recording a copy of the contract or an affidavit of interest as I think it's possible the seller may have found someone willing to pay more for the property and I'd want a third party to be aware of my contract interest in the property.Lastly, I'd make sure the attorney I hired specializes in real property law, particularly in the county where the property lies.

That is how I've operated for years, well before the NAR fiasco and as agents, we have always been advised from referring to status quo, standard, typical, etc when it relates to commissions.It continues to amaze me how many buyers/investors believe the agent value is finding them "deals."

And for an OOS, I always advise to keep things simple at start, don't get greedy, go for quality and consistency, then work on maximizing monetization later.