The down side is that STRs are more work, need to furnish it, pay for utilities and WiFI but in the right market (vacationers and business travelers) it could work. - If I were looking at cash flow as a really important important metric, I'd consider starting a business.

I am not sure about the other markets but I would suggest looking up a Realtor from here and utilizing their knowledge to help you. 

@Chris Collins  Tenants usually pay all utilities. 

However, if you intend to work with a hard money lender or utilize a short-term loan product, you're on the clock for repayment, which can be stressful if things go sideways. 

Start with a standard offer, and write a contingency into it for electricity, all the below ground utilities, and then work your way to zoning, permitting etc.

I get it, but customers never seem to understand.   

Their customer relations person quit and you can NEVER talk to someone in person.  

I would count on having at least half market rate tenants, in the event Section 8 rents are higher than market, which they are in our market (granted you will need to subtract the utilities from the rent).  

And via the clustering we are utilizing green-space in a communal manner thus reducing foot-print of that BUT retaining such perception as each unit has walkout to what seems a BIG green space.

That's the reason there are so many fourplexes and so few fiveplexes or even sixplexes.From what I gather, post offices and utility companies rarely care much about the permitting/zoning issues, so it probably wouldn't have been hard to get those set up.