HOA Master Ins for Denver 3 Unit Condo Conversion - Crazy Quotes!

[Burt L.]

I'm finishing up a small Condo Conversion in Denver on an existing 3 plex that can only be split using the Condo approach. It will be self-managed by the new owners. 

Getting back quotes for a Master Policy that just insures the walls and roof with the only common area being one sidewalk - plus General Liability Insurance- that make zero sense. Its much more than insuring the entire structure with an Umbrella policy for liability. Each owner will also have liability insurance. 

How can this be done better? It is adding a prohibitive amount to monthly HOA fees.