It's thorough, easy to use and easy to modify so you can include your own special terms such as quiet hours, how trash service will be handled, parking, and anything else that is specific to your property. 

Check out the CRREIA group which meets in Clifton Park for meetups.

Find a park a distressed park, find some distressed trailers, put your husband to work. 

In addition to those above-referenced issues related to conversions, the additional unit(s) would require a parking space and enough lot area/gross floor area to meet the requirements in 9-703. 

What about drive approaches, parking lots, site lights, landscape, irrigation, etc.? 

As long as the location was in the path of progress, and the units themselves had already or the ability to add features like off street parking, in unit laundry, etc. 

Parking will likely be your biggest hurdle.

I knew demand was strong for RV and semi truck parking.

There is also parking per unit and impervious cover that could be an issue.

I toured some apartments in August and there were multiple uhuals parked out front.