Does anyone know of any good documentation to help a non-accountant setting this up....

I will be meeting with my mortgage banker next week to give him the documents he needs to finalize my first loan for a multifamily property.

In my (limited) experience around PHX, when you go to sell it, if you as the owner did the work, any retail buyer is going to wet their pants, and ask for about 3 inspections, and a mountain of other documentation.  

I am happy to report once again that we have increased our portfolio. We went from having no properties when we started in Nov.....now having three properties.

Keep it going in 2016.......

I know that there are additional requirements with a Solo401k plan such as plan document, annual filing of the 5500 form etc.

For instance see the article from the Dallas Morning News  (www.dallasnews.com/business/residential-real-estate/20160204-where-home-prices-are-rising-the-fastest-in-d-fw.ece) noting the area on the map that had decreasing prices. 

The bank continues to say they never received the documents.

Either whoever is negotiating the short sale is just sitting on their hands, or the sellers took months to supply the required documents to the bank.  

Here is the RI fire safety code there is a section for 3 family apartment. http://sos.ri.gov/documents/archives/regdocs/relea...Not sure if there is somewhere to see if this is most current. 

Yep, just document everything, and take pictures of everything you are deducting for.