Of course, if your local ordinances restrict occupancy numbers, you can safely follow those ordinances. 

My opinion is while not directly correlated, when banks start losing money and increase in defaults lending tightens and large losses typically will lead to more job losses.

In Worcester, I think your numbers are pretty close, but there are also a lot of Programs between Mass Save, and the City of Worcester that will pay for many of these things if you agree to an income restriction, or sell income restricted. 

Do they violate any existing restrictions?

Some lenders will offer a blend of the two with something like a 14 year term.If a lender asks for more, they're imposing additional restrictions over and above what SBA requires.  

A lis pendens from the bank was filed 10 years ago, but the foreclosure was put on hold because of the SCRA restrictions protecting an active duty service member from being foreclosed on.

@Chris Volgenau I'm pretty positive Cape Canaveral has had their restrictions in place for quite some time.

Your 3 options are 2 of the most restrictive in the country and own of the least.

Quote from @Cali Skier: I agree with Mike that you should be fine.I recommend you tighten your standards for future renters.1.

And all the while operating under tighter and tighter governmental restrictions and scrutiny.