I'm also interested in hearing/ reading any stories (successes and failures) about investor interactions with preexisting communities. 

You'll need a letter from your attorney, investment advisor, or CPA, which may require some billable hours or a pre-existing relationship with the professional.In contrast, 506B offerings do not require third-party certification.

Today you will never get an approval to do that with any of those homes, but those units are allowable because they pre-existed the change in the use guidelines.

I found costs can really get up there and get even worse if you have certain types of preexisting foundations that are common in old buildings as many in DC and other east coast cities have. 

So the only way they would insure you, is to have extremely high premiums.These properties are preexisting properties for your firm correct and not new. 

My point was that pre-existing 1 bedroom homes that can do those kind of numbers are very rare, and those that do are very expensive because they are in great locations.

This is a pre-existing ADU which needs some work in order to make rentable.

There has to be a pre-existing relationship prior to them investing in your deal.  

Alternatively, it can be set up in the US if there isn't a pre-existing entity. 

I wouldn't say they are real estate focused firm (they are more general CPA firm but have knowledge in all areas) but there's a strong pre-existing relationship there for us so it worked out well and they've been great thus far.