Could ya'll share your experience with credit union's level of flexibility with this requirement? 

What is the arrangement of these four units (all stacked above each other, two on one level and two on another level, etc)?

.  :-) Congrats on those deals  I just have not wanted to take on hundreds of investors.. my one I did we raised half the one you mention ( 7.5 mil)  with only 6 investors so On a very personal level with each..

I'm beginning to get high-level quotes from builders & even modular companies (which I thought would be cheaper) and they are all $300k+.Is there a less expensive route that I'm missing?

That level of hands-on involvement gave me a lot of confidence in both the property and the team.Rent To Retirement made something that initially felt overwhelming much more approachable.

On this Amendment, you can add a handful of updated lease terms and conditions, as well as even increasing the SD amount, especially if it's not a current amount needed to be relevant to the current risk level. 

A few high level points to keep in mind:- As Whitney said, you don't 1031 into an OZ Fund, but invest in the fund as a 1031 alternative.- Unlike a 1031 exchange you only have to invest the capital gains from your sale, rather than the entire amount of the sale. 

Is there anyway to analyze a neighborhood on a more micro level?

Building relationships is about getting to know people on a personal level and finding common interests to connect with them.

Happy to go in to detail with you if you want to DM me, but here are my high level thoughts:-Once you get started, there are TONS of trainings, documents and resources that are available to you and I found to be very helpful.